BUILDING MATERIALS
Building Materials
MCQs Questions and Answers – Set 01
Q1. Which of the following
has more fire resisting characteristics?
(A) Marble
(B) Lime stone
(C) Compact sand stone
(D) Granite
Show Answer
Answer: (C) Compact sand stone
Q2. The plywood
(A) Has good strength along the panel only
(B) Can be spilt in the plane of the panel
(C) Has greater impact resistance to blows than ordinary wood
(D) Cannot be bent more easily than ordinary wood of same thickness
Show Answer
Answer: (C) Has greater impact resistance to blows than ordinary
wood
Q3. A volatile substance
added to a paint to make its application easy and smooth, is known as
(A) Base
(B) Solvent
(C) Vehicle
(D) None to these
Show Answer
Answer:(B) Solvent
Q4. The rocks which are
formed due to cooling of magma at a considerable depth from earth’s surface are
called
(A) Plutonic rocks
(B) Hypabyssal rocks
(C) Volcanic rocks
(D) Igneous rocks
Show Answer
Answer: (A) Plutonic rocks
Q5. Pick up the correct
statement from the following:
(A) The phenol is carbolic acid
(B) The phenol is either extracted from coal-tar or prepared from benzene
(C) Phenol reacts with formaldehyde, to form phenol formaldehyde resin
(D) All the above
Show Answer
Answer: (D) All the above
Q6. Jumper is a tool used
for
(A) Testing of stones
(B) Quarrying of stones
(C) Dressing of stones
(D) None of the above
Show Answer
Answer: (B) Quarrying of stones
Q7. Plywood has the
advantage of
(A) Greater tensile strength in longer direction
(B) Greater tensile strength in shorter direction
(C) Same tensile strength in all directions
(D) None of the above
Show Answer
Answer: (C) Same tensile strength in all directions
Q8. Advantage of a clamp
compared to a kiln for burning bricks is that
(A) It takes less time for burning
(B) It gives more output of first class bricks
(C) It has less initial cost
(D) It is suitable when bricks are required in large numbers
Show Answer
Answer:(C) It has less initial cost
Q9. Pick up the volcanic
rock from the following:
(A) Granite
(B) Dolerite
(C) Basalt
(D) All the above
Show Answer
Answer: (C) Basalt
Q10. Due to attack of dry
rot, the timber
(A) Cracks
(B) Shrinks
(C) Reduces to powder
(D) None of these
Show Answer
Answer: (C) Reduces to powder
Q11. Pick up the correct
statement from the following:
(A) Solder material is an alloy which melts at a temperature
above 400°C
(B) Brazing is done at temperature above 600°C to 1100°C
(C) Brazing joint is stronger than the solder joint
(D) All the above
Show Answer
Answer: (D) All the above
Q12. Sapwood consists of
(A) Innermost annular rings around the pith
(B) Portion of timber between heartwood and cambium layer
(C) Thin layers below the bark
(D) Thin fibre which extends from the pith outwards and holds the annular rings
together
Show Answer
Answer: (B) Portion of timber between heartwood and cambium
layer
Q13. Excess of alumina in
brick earth makes the brick
(A) Impermeable
(B) Brittle and weak
(C) To lose cohesion
(D) To crack and warp on drying
Show Answer
Answer: (D) To crack and warp on drying
Q14. Assertion A : Pure lime
takes a long time to develop adequate strength.
Reason R : Pure lime has slow hardening characteristics.
Select your answer according to the coding system given below:
(A) Both A and R is true and R is correct explanation of A
(B) Both A and R is true and R is not a correct explanation of A
(C) A is true but R is false
(D) A is false but R is true
Show Answer
Answer: (A) Both A and R is true and R is correct explanation of
A
Q15. Strength of cement
concrete primarily depends upon
(A) Quality of water
(B) Quantity of aggregate
(C) Quantity of cement
(D) Water-cement ratio
Show Answer
Answer: (D) Water-cement ratio
Building
Materials Objective Practice Test – Set 02
Show Answer
Answer: (C) Heart wood
Q8. Pick up the correct
statement from the following:
(A) Quick lime is obtained by burning pure lime stone
(B) Hydraulic lime is obtained by burning lime stone containing clay 5% to 30%
(C) Poor lime is obtained by burning lime stone containing impurities more than
5%
(D) All the above
Show Answer
Answer: (D) All the above
Q9. Which of the following
pairs gives a correct combination of the useful and harmful constituents
respectively of a good brick earth?
(A) Lime stone and alumina
(B) Silica and alkalies
(C) Alumina and iron
(D) Alkalies and magnesium
Show Answer
Answer: (B) Silica and alkalies
Q10. For testing compressive
and tensile strength of cement, the cement mortar is made by mixing cement and
standard sand in the proportions of
(A) 1 : 2
(B) 1 : 3
(C) 1 : 4
(D) 1 : 6
Show Answer
Answer: (B) 1 : 3
Q11. Which of the following
cements contains maximum percentage of dicalcium silicate?
(A) Ordinary Portland cement
(B) Low heat cement
(C) Rapid hardening cement
(D) Sulphate resisting cement
Show Answer
Answer: (B) Low heat cement
Q12. Pick up the correct
statement from the following
(A) The distinct plane of division along which a stone can
easily be split, is called natural bed of stone
(B) The natural bed of sedimentary rocks is along the planes of stratification
(C) The natural bed of igneous rocks is not defined
(D) All the above
Show Answer
Answer: (D) All the above
Q13. If ‘P’ is the
percentage of water required for normal consistency, water to be added for
determination of initial setting time, is
(A) 0.70 P
(B) 0.75 P
(C) 0.80 P
(D) 0.85 P
Show Answer
Answer: (D) 0.85 P
Q14. Pick up the incorrect
statement from the following:
(A) Hydraulic lime is generally obtained by burning kankar
(B) Hydraulic lime sets slowly as compared to fat lime
(C) Hydraulic lime is generally used in lime mortar
(D) None of these
Show Answer
Answer: (D) None of these
Q15. Hydraulic lime is
obtained by
(A) Burning of lime stone
(B) Burning of kankar
(C) Adding water to quick lime
(D) Calcination of pure clay
Show Answer
Answer: (B) Burning of kankar
Building
Materials Online Test – Set 03
Q1. The basic purpose of a
retarder in concrete is
(A) To increase the initial setting time of cement paste in
concrete
(B) To decrease the initial setting time of cement paste in concrete
(C) To render the concrete more water tight
(D) To improve the workability of concrete mix
Show Answer
Answer: (A) To increase the initial setting time of cement paste
in concrete
Q2. Which of the following
stresses is used for identifying the quality of structural steel?
(A) Ultimate stress
(B) Yield stress
(C) Proof stress
(D) None of the above
Show Answer
Answer: (B) Yield stress
Q3. Oil varnish generally
consists of
(A) Synthetic resin and spirit
(B) Oil, wax and resin
(C) Resin, oil and turpentine
(D) Spirit, oil and wax
Show Answer
Answer: (C) Resin, oil and turpentine
Q4. Clay and silt content in
a good brick earth must be at least
(A) 50 %
(B) 40 %
(C) 30 %
(D) 25 %
Show Answer
Answer: (A) 50 %
Q5. Quick lime
(A) Generates heat when added to water
(B) Reacts with carbon dioxide
(C) May be used for white-washing
(D) All the above
Show Answer
Answer: (D) All the above
Q6. For testing compressive
strength of cement, the size of cube used is
(A) 50 mm
(B) 70.6 mm
(C) 100 mm
(D) 150 mm
Show Answer
Answer: (A) 50 mm
Q7. Which of the following
is the purest form of iron?
(A) Cast iron
(B) Wrought iron
(C) Mild steel
(D) High carbon steel
Show Answer
Answer: (B) Wrought iron
Q8. Assertion A : Normally
turpentine oil is recommended as thinner for indoor painting.
Reason R : Turpentine oil is costlier than other thinners.
Select your answer according to the coding system given below:
(A) Both A and R is true and R is the correct explanation of A
(B) Both A and R is true but R is not the correct explanation of A
(C) A is true but R is false
(D) A is false but R is true
Show Answer
Answer: (B) Both A and R is true but R is not the correct
explanation of A
Q9. When a brick is immersed
in water for 24 hours and then dried, if
(A) No grey or white deposits appear on the surface, the brick
is free from soluble salts
(B) 10 percent surface is covered with grey or white deposits, the brick has
slight efflorescence
(C) 50 percent surface is covered with grey or white deposits, the brick has serious
efflorescence
(D) All the above
Show Answer
Answer: (D) All the above
Q10. If the iron ore
contains clay as an impurity, the flux added during calcination, is
(A) Clay
(B) Lime stone
(C) Argillaceous iron ore
(D) All the above
Show Answer
Answer: (B) Lime stone
Q11. Putty is
(A) Made with finely powdered chalk and linseed oil
(B) Used for fixing glass panes
(C) Softened by a solution of pearl ash and quick-lime soaked in water
(D) All the above
Show Answer
Answer: (D) All the above
Q12. Gypsum consists of
(A) H₂S and CO₂
(B) CaSO4 and H₂O
(C) Lime and H₂O
(D) CO₂ and calcium
Show Answer
Answer: (B) CaSO4 and H₂O
Q13. The stretcher bond in
brick masonry can be used only when the thickness of wall is
(A) 90 mm
(B) 180 mm
(C) 190 mm
(D) 280 mm
Show Answer
Answer: (A) 90 mm
Q14. A mortar joint in
masonry which is normal to the face of wall is known as
(A) Bed joint
(B) Wall joint
(C) Cross joint
(D) Bonded joint
Show Answer
Answer: (C) Cross joint
Q15. For sanitary pipes and
chemical stonewares,
(A) Salt glazing is used
(B) Lead glazing is used
(C) Opaque glazing is used
(D) None of these
Show Answer
Answer: (A) Salt glazing is used
Building
Materials Civil Engineering MCQ – Set 04
Q1. The most commonly used
retarder in cement is
(A) Gypsum
(B) Calcium chloride
(C) Calcium carbonate
(D) None of the above
Show Answer
Answer: (A) Gypsum
Q2. Soundness of cement is
tested by
(A) Vicat’s apparatus
(B) Le-chatelier apparatus
(C) Compressive strength testing apparatus
(D) None of these
Show Answer
Answer: (B) Le-chatelier apparatus
Q3. A queen closer is a
(A) Brick laid with its length parallel to the face or direction
of wall
(B) Brick laid with its breadth parallel to the face or direction of wall
(C) Brick having the same length and depth as the other bricks but half the
breadth
(D) Brick with half the width at one end and full width at the other
Show Answer
Answer: (C) Brick having the same length and depth as the other
bricks but half the breadth
Q4. The rocks which are
formed due to cooling of magma at a relatively shallow depth from the earth’s
surface are called
(A) Plutonic rocks
(B) Hypabyssal rocks
(C) Volcanic rocks
(D) Igneous rocks
Show Answer
Answer: (B) Hypabyssal rocks
Q5. First class timber has
an average life of
(A) Less than one year
(B) 1 to 5 years
(C) 5 to 10 years
(D) More than 10 years
Show Answer
Answer: (D) More than 10 years
Q6. The percentage of
alumina and silica in good fire clay vary respectively is
(A) 25, 75
(B) 30, 70
(C) 35, 65
(D) All of these
Show Answer
Answer: (A) 25, 75
Q7. The ratio of the
thickness of web to that of flange of steel rolled structural beams and
channels is
(A) Less than 1
(B) Equal to 1
(C) Greater than 1
(D) Less than 1 in beams but greater than 1 in channels
Show Answer
Answer: (A) Less than 1
Q8. Bitumen may be dissolved
in
(A) Carbondioxide
(B) Water
(C) Sodium chloride
(D) Carbon disulphide
Show Answer
Answer: (D) Carbon disulphide
Q9. The proportions of lime
and sand in the mortar normally used in brick construction are
(A) 1 : 2
(B) 1 : 4
(C) 1 : 6
(D) 1 : 8
Show Answer
Answer: (A) 1 : 2
Q10. Non acid-resistant
asbestos is:
(A) Tremolite asbestos
(B) Chrysotile asbestos
(C) Amosite asbestos
(D) None of these
Show Answer
Answer: (B) Chrysotile asbestos
Q11. Which of the following
ingredients of the brick earth enables the brick to retain its shape?
(A) Alumina
(B) Silica
(C) Iron
(D) Magnesia
Show Answer
Answer:(B) Silica
Q12. Index number expressing
the relative sizes of both coarse and fine aggregates, is called
(A) Proportioning of aggregates
(B) Fineness modulus
(C) Grading of aggregates
(D) None of these
Show Answer
Answer: (B) Fineness modulus
Q13. The pressure acting on
the stones in stone masonry construction should be
(A) Along the direction of bedding planes
(B) At 45° to the direction of bedding planes
(C) At 60° to the direction of bedding planes
(D) Perpendicular to the direction of bedding planes
Show Answer
Answer: (D) Perpendicular to the direction of bedding planes
Q14. Veneering means
(A) Carving out designs on timber planks
(B) Chemically treating timber planks
(C) Thick layer of superior wood glued to inferior wood
(D) Thin layer of superior wood glued to inferior wood
Show Answer
Answer: (C) Thick layer of superior wood glued to inferior wood
Q15. Which of the following
sedimentary rocks changes into quartzite by metamorphic action?
(A) Sand stone
(B) Lime stone
(C) Shale
(D) Gypsum
Show Answer
Answer: (A) Sand stone
Civil
Building Materials MCQ – Set 05
Q1. Pick up the constituent
of good brick earth whose excess causes the raw bricks shrink and warp during
drying and burning, from the following:
(A) Alumina
(B) Lime
(C) Iron-oxide
(D) Magnesia
Show Answer
Answer: (A) Alumina
Q2. Number of bricks
required for one cubic metre of brick masonry is
(A) 400
(B) 450
(C) 500
(D) 550
Show Answer
Answer: (C) 500
Q3. Lime putty
(A) Is made from hydraulic lime
(B) Is made by adding lime to water
(C) Can be used only upto three days
(D) All of above
Show Answer
Answer: (D) All of above
Q4. The type of bond
provided in brick masonry for carrying heavy loads is
(A) Single Flemish bond
(B) Double Flemish bond
(C) English bond
(D) Zigzag bond
Show Answer
Answer: (C) English bond
Q5. Which one of the
following is used for preparing porcelain?
(A) Clay
(B) Feldspar
(C) Quartz
(D) All of these
Show Answer
Answer: (D) All of these
Q6. The stone suitable for
rubble masonry should be.
(A) Hard
(B) Tough
(C) Heavy
(D) Light
Show Answer
Answer: (A) Hard
Q7. Blister steel
(A) Is obtained by cementation process
(B) Is full of fissures and cavities
(C) Can be easily welded
(D) All the above
Show Answer
Answer: (D) All the above
Q8. The main ingredients of
Portland cement are
(A) Lime and silica
(B) Lime and alumina
(C) Silica and alumina
(D) Lime and iron
Show Answer
Answer: (A) Lime and silica
Q9. Pick up the correct
statement from the following:
(A) Air bubbles in casting produce a dull sound by tapping their
surfaces lightly with a hammer
(B) Cupola furnace is used for the manufacture of cast iron
(C) Red short iron is of no value for welding purpose
(D) All the above
Show Answer
Answer:(D) All the above
Q10. Gypsum is a
(A) Mechanically formed sedimentary rock
(B) Igneous rock
(C) Chemically precipitated sedimentary rock
(D) Metamorphic rock
Show Answer
Answer: (C) Chemically precipitated sedimentary rock
Q11. Pick up the correct
statement from the following:
(A) Blistering may be cured by applying water paint finished
with oil paint dried with a little copal varnish
(B) Cracked paints may be cured by removing paint and giving a fresh coat of
paint
(C) Crawling paints may be cured by sand preparing the surface and giving a
fresh coat with plenty of turps
(D) All the above
Show Answer
Answer: (D) All the above
Q12. Spalling hammer is used
for
(A) Driving wooden headed chisels
(B) Rough dressing of stones
(C) Carving of stones
(D) Breaking small projection of stones
Show Answer
Answer:(B) Rough dressing of stones
Q13. Seasoning of timber is
done
(A) To make it water proof
(B) To paint its surface
(C) To increase its temperature
(D) To remove water
Show Answer
Answer:(D) To remove water
Q14. After storage, the
strength of cement
(A) Decreases
(B) Increases
(C) Remains same
(D) May increase or decrease
Show Answer
Answer: (A) Decreases
Q15. Bullet proof glass is
made of thick glass sheet sandwiched by a layer of
(A) Steel
(B) Stainless steel
(C) High test plastic
(D) Chromium plate
Show Answer
Answer: (C) High test plastic
Building
Materials Objective Questions pdf – Set 06
Q1. Which of the following is
a rock?
(A) Quartz
(B) Mica
(C) Gypsum
(D) None of the above
Show Answer
Answer: (C) Gypsum
Q2. A bull nose brick is not
used for
(A) Rounding off sharp corners
(B) Pillars
(C) Decoration purpose
(D) Arches
Show Answer
Answer: (D) Arches
Q3. Plywood is made by
bonding together thin layers of wood in such a way that the angle between
grains of any layer to grains of adjacent layers is
(A) 0°
(B) 30°
(C) 45°
(D) 90°
Show Answer
Answer: (D) 90°
Q4. The tendency of a stone
is, to split along:
(A) Texture
(B) Fracture
(C) Cleavage
(D) Structure
Show Answer
Answer: (C) Cleavage
Q5. The most common
admixture which is used to accelerate the initial set of concrete is
(A) Gypsum
(B) Calcium chloride
(C) Calcium carbonate
(D) None of the above
Show Answer
Answer: (B) Calcium chloride
Q6. According to IS
399-1963, the weight of the timber is specified at
(A) 8% moisture content
(B) 10% moisture content
(C) 12% moisture content
(D) 14% moisture content
Show Answer
Answer: (C) 12% moisture content
Q7. Which of the following
stone is best suited for construction of piers and abutments of a railway
bridge?
(A) Granite
(B) Sand stone
(C) Lime stone
(D) Quartzite
Show Answer
Answer: (A) Granite
Q8. Chlorite, a green colour
mineral is mainly derived from the decomposition of
(A) Augite
(B) Biotite
(C) Hornblende
(D) All of these
Show Answer
Answer: (A) Augite
Q9. The internal size of
mould used in brick preparation is
(A) Equal to the size of a fully burnt brick
(B) Smaller than the size of a fully burnt brick
(C) Greater than the size of a fully burnt brick
(D) None of the above
Show Answer
Answer: (C) Greater than the size of a fully burnt brick
Q10. Cast iron contains
carbon approximately
(A) 1.5% to 5.5%
(B) 0.05% to 1.75%
(C) 0.250 %
(D) None to these
Show Answer
Answer: (A) 1.5% to 5.5%
Q11. The ultimate tensile
strength of structural mild steel is about
(A) 160 N/mm²
(B) 260 N/mm²
(C) 420 N/mm²
(D) 520 N/mm²
Show Answer
Answer: (C) 420 N/mm²
Q12. Pick up the correct
statement from the following:
(A) The free quartz suddenly expands at a temperature lower than
600°C
(B) The lime stone resists fire upto about 800°C and at higher temperature it
splits into CaO and CO2
(C) The sand stone with silicates resist a fire in a better way
(D) All the above
Show Answer
Answer: (D) All the above
Q13. Which of the following
trees yields hard wood?
(A) Deodar
(B) Chir
(C) Shishum
(D) Pine
Show Answer
Answer: (C) Shishum
Q14. Asbestos
(A) Is a natural fibrous mineral substance
(B) Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3)
(C) Contains iron oxide and alumina
(D) All the above
Show Answer
Answer: (D) All the above
Q15. Quick lime is
(A) Calcium carbonate
(B) Calcium oxide
(C) Calcium hydroxide
(D) None of the above
Show Answer
Answer: (B) Calcium oxide
Building
Materials Basic Questions – Set 07
Q1. Pick up the correct
statement from the following:
(A) Styrene resin is produced from ethylene which is made from
petroleum
(B) Styrene resin is light in weight
(C) Styrene resin transmits ultraviolet waves of light
(D) All the above
Show Answer
Answer: (D) All the above
Q2. Specific gravity for
most of the building stones lies between
(A) 1.5 to 2.0
(B) 2.0 to 2.5
(C) 2.5 to 3.0
(D) 3.0 to 3.5
Show Answer
Answer: (C) 2.5 to 3.0
Q3. Cast steel is
manufactured by
(A) Cementation process
(B) Crucible process
(C) Bessemer process
(D) Open hearth process
Show Answer
Answer: (B) Crucible process
Q4. The initial setting time
for ordinary Portland cement as per IS specifications should not be less than
(A) 10 minutes
(B) 30 minutes
(C) 60 minutes
(D) 600 minutes
Show Answer
Answer: (B) 30 minutes
Q5. Initial setting time of
cement for asbestos cement products should be not less than
(A) 30 minutes
(B) 50 minutes
(C) 75 minutes
(D) 90 minutes
Show Answer
Answer: (D) 90 minutes
Q6. Based on the following
rocks and minerals, select the correct statement, quartz, shale, basalt,
granite, marble, gypsum, mica
(A) Basalt and marble are the only metamorphic rocks
(B) There is no sedimentary rock
(C) Granite is the only igneous rock
(D) Quartz and mica are minerals
Show Answer
Answer: (D) Quartz and mica are minerals
Q7. Rapid hardening cement
attains early strength due to
(A) Larger proportion of lime grounded finer than normal cement
(B) Lesser proportion of lime grounded coarser than normal cement
(C) Lesser proportion of lime grounded finer than normal cement
(D) Excess percentage of gypsum
Show Answer
Answer:(A) Larger proportion of lime grounded finer than normal
cement
Q8. The age of a tree can be
known by examining
(A) Cambium layer
(B) Annular rings
(C) Medullary rays
(D) Heart wood
Show Answer
Answer: (B) Annular rings
Q9. The foliated structure
is very common in
(A) Sedimentary rocks
(B) Igneous rocks
(C) Metamorphic rocks
(D) None of these
Show Answer
Answer: (C) Metamorphic rocks
Q10. With increase in
moisture content, the bulking of sand
(A) Increases
(B) Decreases
(C) First increases to a certain maximum value and then decreases
(D) First decreases to a certain minimum value and then increases
Show Answer
Answer: (C) First increases to a certain maximum value and then
decreases
Q11. Pick up the correct
statement from the following:
(A) In basic Bessemer process, the steel heats the converter
(B) In open-hearth process, the furnace heats the steel
(C) In Siemens process, the impurities of pig iron are oxidized by the oxygen
of the ore
(D) All the above
Show Answer
Answer: (D) All the above
Q12. Cross cut saw is used
for
(A) Cutting soft stones
(B) Cutting hard stones
(C) Cutting large blocks of stones
(D) Dressing stones
Show Answer
Answer: (B) Cutting hard stones
Q13. Plywood is normally
available
(A) 1 mm thick
(B) 2 mm thick
(C) 2 to 3 mm thick
(D) 3 mm to 4 mm thick
Show Answer
Answer: (D) 3 mm to 4 mm thick
Q14. Percentage of silica in
a good brick earth lies between
(A) 5 to 10 %
(B) 20 to 30 %
(C) 50 to 60 %
(D) 70 to 80 %
Show Answer
Answer: (C) 50 to 60 %
Q15. Pick up the correct
statement from the following:
(A) Catalysts are added to assist and accelerate the hardening
of resin
(B) The fillers are inert materials and they impart strength and hardness
(C) Fibrous fillers increase thermal resistance
(D) All the above
Show Answer
Answer: (D) All the above
Building
Materials Viva Questions – Set 08
Q1. Compared to mild steel,
cast iron has
(i) High compressive strength
(ii) High tensile strength
(iii) Low compressive strength
(iv) Low tensile strength
The correct answer is
(A) (i) and (ii)
(B) (ii) and (iii)
(C) (iii) and (iv)
(D) (i)and(iv)
Show Answer
Answer: (D) (i)and(iv)
Q2. Resins are
(A) Not soluble in water
(B) Soluble in spirit
(C) Used in varnishes
(D) Left behind on evaporation of oil
Show Answer
Answer: (C) Used in varnishes
Q3. A first class brick when
immersed in cold water for 24 hours should not absorb water more than
(A) 15 %
(B) 20 %
(C) 22 %
(D) 25 %
Show Answer
Answer:(B) 20 %
Q4. In a mortar, the binding
material is
(A) Cement
(B) Sand
(C) Surkhi (brick-dust)
(D) Cinder
Show Answer
Answer: (A) Cement
Q5. Quick lime is
(i) Slow in setting
(ii) Rapid in slacking
(iii) Good in strength
The correct answer is
(A) Only (i)
(B) Only (ii)
(C) Both (i) and (ii)
(D) Both (ii) and (iii)
Show Answer
Answer: (C) Both (i) and (ii)
Q6. The minimum compressive
strength of 2nd class bricks should be
(A) 75 kg/cm2
(B) 90 kg/cm2
(C) 100 kg/cm2
(D) 120 kg/cm2
Show Answer
Answer: (A) 75 kg/cm2
Q7. The vehicle used in case
of enamel paints is usually
(A) Linseed oil
(B) Water
(C) Varnish
(D) None of the above
Show Answer
Answer: (C) Varnish
Q8. Pick up the correct
statement from the following:
(A) Soft stones are required for carving
(B) Light stones are required for arches
(C) Hard stones are required to stand high pressure
(D) All the above
Show Answer
Answer: (D) All the above
Q9. Which of the following
bricks are used for lining of furnaces?
(A) Over-burnt bricks
(B) Under-burnt bricks
(C) Refractory bricks
(D) First class bricks
Show Answer
Answer: (C) Refractory bricks
Q10. In the method of
condensation polymerization,
(A) Low-molecular substances are removed from the high molecular
substance
(B) The reaction proceeds with an evolution of ammonia
(C) The reaction proceeds with an evolution of hydrogen chloride
(D) All of the above
Show Answer
Answer: (D) All of the above
Q11. As per IS specifications,
the maximum final setting time for ordinary Portland cement should be
(A) 30 minutes
(B) 1 hour
(C) 6 hours
(D) 10 hours
Show Answer
Answer: (D) 10 hours
Q12. Bulking of sand is
caused due to
(A) Surface moisture
(B) Air voids
(C) Viscosity
(D) Clay contents
Show Answer
Answer: (A) Surface moisture
Q13. The slenderness ratio
for masonry walls should not be more than
(A) 10
(B) 20
(C) 30
(D) 40
Show Answer
Answer: (B) 20
Q14. Shingle is
(A) Decomposed laterite
(B) Crushed granite
(C) Water bound pebbles
(D) Air weathered rock
Show Answer
Answer: (A) Decomposed laterite,
(C) SHOULD BE WATER BOUND PEBBLES
Shingle
is water-bound pebble found usually along beaches and natural water bodies. It
is used as a roofing material, surfacing of the boundary walls, filling, etc.
Murrum
is formed from disintegrated laterite. It is generally used for manufacturing
of paver blocks, for laying pathway by directly compaction, or as a binding
material for making kuccha homes, etc.
Rhyolite
is an example of crushed granite used as an aggregate in the road construction
industry.
Q15. According to IS
specifications, the compressive strength of ordinary Portland cement after
three days should not be less than
(A) 7 MPa
(B) 11.5 MPa
(C) 16 MPa
(D) 21 MPa
Show Answer
Answer:(C) 16 MPa
Building
Materials Multiple Questions – Set 09
Q1. Sand stone is
(A) Sedimentary rock
(B) Metamorphic rock
(C) Igneous rock
(D) Volcanic rock
Show Answer
Answer: (A) Sedimentary rock
Q2. Proper amount of
entrained air in concrete results in
(i) Better workability
(ii) Better resistance to freezing and thawing
(iii) Lesser workability
(iv) Less resistance to freezing and thawing
The correct answer is
(A) (i) and (ii)
(B) (i) and (iv)
(C) (ii) and (iii)
(D) (iii) and (iv)
Show Answer
Answer: (A) (i) and (ii)
Q3. Pick up the correct
statement from the following:
(A) Plastics have generally low melting point
(B) The coefficient of thermal expansion of plastics is about three times than
that of steel
(C) The acoustical boards prepared by impregnating fibre-glass with phenolic
resins has absorption coefficient of about 0.67
(D) All the above
Show Answer
Answer: (D) All the above
Q4. Which of the following
represents a metamorphic rock?
(i) Slate
(ii) Shale
(iii) Quartzite
The correct answer is
(A) Only (iii)
(B) Both (i) and (iii)
(C) Both (ii) and (iii)
(D) All (i), (ii) and (iii)
Show Answer
Answer: (B) Both (i) and (iii)
Q5. Pick up the correct
statement from the following: Method of sawing timber
(A) Tangentially to annual rings, is known as tangential method
(B) In four quarters such that each board cuts annual rings at angles not less
than 45°, is known as quarter sawing method
(C) Cut out of quarter logs, parallel to the medullary rays and perpendicular
to annual rings, is known as radial sawing
(D) All the above
Show Answer
Answer: (D) All the above
Q6. The amount of water used
for one kg of distemper is
(A) 0.2 liter
(B) 0.4 liter
(C) 0.6 liter
(D) 0.8 liter
Show Answer
Answer: (C) 0.6 liter
Q7. For the manufacture of
Portland cement, the proportions of raw materials used, are
(A) Lime 63% ; silica 22% ; other ingredients 15%
(B) Lime 22% ; silica 63% ; other ingredients 15%
(C) Silica 40% ; lime 40% ; other ingredients 20%
(D) Silica 70% ; lime 20% ; other ingredients 10%
Show Answer
Answer: (A) Lime 63% ; silica 22% ; other ingredients 15%
Q8. Assertion A : Paints
with white lead base are not recommended for painting of iron works.
Reason R : Paints with white lead base do not check rusting of iron.
Select your answer according to the coding system given below:
(A) Both A and R is true and, R is the correct explanation of A
(B) Both A and R is true but R is not the correct explanation of A
(C) A is true but R is false
(D) A is false but R is true
Show Answer
Answer:(A) Both A and R is true and, R is the correct
explanation of A
Q9. Smith’s test of stones
is performed to find out
(A) The presence of soluble matter of stone
(B) The compressive strength of the stone
(C) The hardness of the stone
(D) The toughness of the stone
Show Answer
Answer: (A) The presence of soluble matter of stone
Q10. A good building stone
should not absorb water more than
(A) 5 %
(B) 10 %
(C) 15 %
(D) 20 %
Show Answer
Answer: (A) 5 %
Q11. Pick up the correct
statement from the following:
(A) Alexander Parkes, a Scottish chemist prepared a hard
material by mixing camphor and alcohol with nitro cellulose and called it, as
Parkesite
(B) Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite
(C) Pollark, an Austrian scientist prepared a substance from urea and
formaldehyde and called it Plastic
(D) All the above
Show Answer
Answer: (D) All the above
Q12. The most important tool
in brick laying for lifting and spreading mortar and for forming joints is
(A) Trowel
(B) Square
(C) Bolster
(D) Scutch
Show Answer
Answer: (A) Trowel
Q13. Good quality stones
must
(A) Be durable
(B) Be free from clay
(C) Resist action of acids
(D) All the above
Show Answer
Answer: (D) All the above
Q14. Expansion Joints in
masonry walls are provided in wall lengths usater than
(A) 10 m
(B) 20 m
(C) 30 m
(D) 40 m
Show Answer
Answer:(D) 40 m
Q15. What is the answer to
this question?The weight of 1 m3 of brick earth, is about
(A) 1200 kg
(B) 1500 kg
(C) 1800 kg
(D) 2000 kg
Show Answer
Answer: (C) 1800 kg
Building
Materials Objective type Questions and Answers pdf – Set 10
Q1. Which of the following
is a mineral?
(A) Basalt
(B) Granite
(C) Quartz
(D) Syenite
Show Answer
Answer:(C) Quartz
Q2. The weight of a good
quality brick when immersed in water for a period of 16 hours should not exceed
the weight of dry brick
(A) 20 %
(B) 15 %
(C) 10 %
(D) None of these
Show Answer
Answer: (A) 20 %
Q3. Which of the following
should be used for hearting of thicker walls?
(A) Headers
(B) Stretchers
(C) Brick bats
(D) Queen closer
Show Answer
Answer: (A) Headers
Q4. Age of a tree may be
ascertained by
(A) Radius of its stem
(B) Circumference of its stem
(C) Number of branches
(D) Number of annual rings
Show Answer
Answer: (D) Number of annual rings
Q5. Pug mill is used for
(A) Preparation of clay
(B) Moulding of clay
(C) Drying of bricks
(D) Burning of bricks
Show Answer
Answer: (A) Preparation of clay
Q6. Asbestos
(A) Is an excellent insulator for heat and electricity
(B) Is fire-proof and acid proof
(C) Has sp. gravity equal to 3.10
(D) All the above
Show Answer
Answer: (D) All the above
Q7. Crushing strength of a
good building stone should be more than
(A) 50 MPa
(B) 100 MPa
(C) 150 MPa
(D) 200 MPa
Show Answer
Answer: (B) 100 MPa
Q8. Pick up the synthetic
resin from the following:
(A) Urea resin
(B) Phenolic resin
(C) Resorcinol resin
(D) All of these
Show Answer
Answer: (D) All of these
Q9. A heavy stone is
suitable for
(A) Arches
(B) Rubble masonry
(C) Roads
(D) Retaining walls
Show Answer
Answer: (D) Retaining walls
Q10. Generally wooden moulds
are made from
(A) Ply wood
(B) Shishum wood
(C) Deodar wood
(D) Teak wood
Show Answer
Answer: (B) Shishum wood
Q11. Addition of pozzolana
to ordinary Portland cement increases
(A) Bleeding
(B) Shrinkage
(C) Permeability
(D) Heat of hydration
Show Answer
Answer: (B) Shrinkage
Q12. Pick up the correct
statement from the following:
(A) Blisters in the finished wrought iron, are caused due to the
reaction between oxide of iron and carbon
(B) The edges of a finished wrought iron are rough due to red shortage
(C) Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)
(D) All the above
Show Answer
Answer:(D) All the above
Q13. The nominal size of the
modular brick is
(A) 190 mm × 90 mm × 80 mm
(B) 190 mm × 190 mm × 90 mm
(C) 200 mm × 100 mm × 100 mm
(D) 200 mm × 200 mm × 100 mm
Show Answer
Answer: (C) 200 mm × 100 mm × 100 mm
Q14. Plastics are compounds
of carbon with element
(A) Hydrogen
(B) Nitrogen
(C) Oxygen
(D) All of these
Show Answer
Answer: (D) All of these
Q15. The percentage of
alumina in a good brick earth lies between
(A) 5 to 10 %
(B) 20 to 30 %
(C) 50 to 60 %
(D) 70 to 80 %
Show Answer
Answer: (B) 20 to 30 %
Building
Materials and Construction Interview Questions – Set 11
Show Answer
Answer: (B) Soundness of cement
Q7. Calcination of iron ores
is done
(A) To remove moisture
(B) To remove carbonic acid
(C) By roasting in heaps
(D) All the above
Show Answer
Answer: (D) All the above
Q8. Sandstone is a
(i) Sedimentary rock
(ii) Aqueous rock
(iii) Siliceous rock
The correct answer is
(A) Only (i)
(B) Both (i) and (ii)
(C) Both (i) and (iii)
(D) All (i), (ii) and (iii)
Show Answer
Answer: (D) All (i), (ii) and (iii)
Q9. Red short iron cracks
when bent due to the presence of
(A) Sulphur
(B) Carbon
(C) Phosphorus
(D) Silicon
Show Answer
Answer: (A) Sulphur
Q10. Which of the following
cements is suitable for use in massive concrete structures such as large dams?
(A) Ordinary Portland cement
(B) Low heat cement
(C) Rapid hardening cement
(D) Sulphate resisting cement
Show Answer
Answer: (B) Low heat cement
Q11. The rocks having
alumina or clay as their major constituents are known as
(A) Siliceous rocks
(B) Argillaceous rocks
(C) Calcareous rocks
(D) Sedimentary rocks
Show Answer
Answer: (B) Argillaceous rocks
Q12. Percentage of carbon
content in mild steel is
(A) Less than 0.25
(B) Between 0.25 and 0.7
(C) Between 0.7 and 1.5
(D) Greater than 1.5
Show Answer
Answer: (A) Less than 0.25
Q13. The commonly used
thinner in oil paints, is
(A) Naphtha
(B) Turpentine
(C) Both (a) and (b)
(D) None the these
Show Answer
Answer:(C) Both (a) and (b)
Q14. The practical limit of
moisture content achieved in air drying of timber is
(A) 5 %
(B) 15 %
(C) 25 %
(D) 35 %
Show Answer
Answer: (B) 15 %
Q15. The method of addition
polymerization is used for obtaining:
(A) Polystyrene
(B) Polypropylene
(C) Polyvinylchloride
(D) All of these
Show Answer
Answer: (D) All of these
Building
Materials and Construction Important Questions – Set 12
Q1. Minimum thickness of
wall where single Flemish bond can be used is
(A) Half brick thick
(B) One brick thick
(C) One and a half bricks thick
(D) Two bricks thick
Show Answer
Answer: (C) One and a half bricks thick
Q2. Glazing of clay
products, is done
(A) To improve their appearance
(B) To protect them from atmospheric effect
(C) To protect them from corrosive action
(D) All the above
Show Answer
Answer: (D) All the above
Q3. Which of the following
metamorphic rocks has the most weather resisting characteristics?
(A) Marble
(B) Quartzite
(C) Slate
(D) Lime stone
Show Answer
Answer: (B) Quartzite
Q4. The pigment used in
paints for corrosive resistance, is
(A) White lead
(B) Ferrous oxide
(C) Zinc white
(D) Red lead
Show Answer
Answer: (D) Red lead
Q5. Study the following
statements.
(i) Hydraulic lime is suitable for white washing,
(ii) Fat lime is suitable for whitewashing,
(iii) Hydraulic lime is suitable for making mortar,
(iv) Fat lime is suitable for making mortar.
The correct answer is
(A) (i) and (iv)
(B) (ii) and (iii)
(C) (i) and (ii)
(D) (iii) and (iv)
Show Answer
Answer: (B) (ii) and (iii)
Q6. To retard the initial
setting time of cement, the compound responsible, is
(A) Tri-calcium silicate
(B) Gypsum
(C) Di-calcium silicate
(D) Tri-calcium aluminate
Show Answer
Answer: (B) Gypsum
Q7. Slate is formed by
metamorphic action on
(A) Shale
(B) Lime stone
(C) Sand stone
(D) Granite
Show Answer
Answer: (A) Shale
Q8. The yield strength and
tensile strength of low carbon steel may be improved by the addition of
(A) Manganese
(B) Chromium
(C) Nickel
(D) Vanadium
Show Answer
Answer: (D) Vanadium
Q9. Seasoning of timber is
done for
(A) Increasing moisture content
(B) Decreasing moisture content
(C) Increasing strength of timber
(D) None to these
Show Answer
Answer: (B) Decreasing moisture content
Q10. Sea sand used in
structures causes
(A) Dampness
(B) Efflorescence
(C) Disintegration
(D) All of these
Show Answer
Answer: (D) All of these
Q11. Three basic raw
materials which are needed in large quantities for production of steel are
(A) Iron ore, coal and sulphur
(B) Iron ore, carbon and sulphur
(C) Iron ore, coal and lime stone
(D) Iron ore, carbon and lime stone
Show Answer
Answer: (C) Iron ore, coal and lime stone
Q12. The steel used for the
manufacture of rails, is
(A) Bessemer steel
(B) Mild steel
(C) Cast steel
(D) Stainless steel
Show Answer
Answer: (A) Bessemer steel
Q13. The trunk of tree left
after cutting all the branches is known as
(A) Log
(B) Batten
(C) Plank
(D) Baulk
Show Answer
Answer: (A) Log
Q14. To give a brilliant
finish, the type of varnish used, is
(A) Water varnish
(B) Spirit varnish
(C) Turpentine varnish
(D) Oil varnish
Show Answer
Answer: (B) Spirit varnish
Q15. Durability of building
stone is affected by its
(A) Chemical composition
(B) Texture
(C) Resistance to atmosphere
(D) All the above
Show Answer
Answer: (D) All the above
Building
Materials Questions – Set 14
Q1. In brick masonry the
bond produced by laying alternate headers and stretchers in each course is known
as
(A) English bond
(B) Double Flemish bond
(C) Zigzag bond
(D) Single Flemish bond
Show Answer
Answer: (A) English bond
Q2. The commonly used lime
in white washing, is
(A) White lime
(B) Fat lime
(C) Hydraulic lime
(D) Quick lime
Show Answer
Answer: (B) Fat lime
Q3. The moisture content in
a well seasoned timber is
(A) 4 % to 6 %
(B) 10 % to 12 %
(C) 15 % to 20 %
(D) 100 %
Show Answer
Answer: (B) 10 % to 12 %
Q4. In stone masonry, if
stones are so placed that their layers are parallel to the direction of load,
they
(A) Split easily
(B) Are affected by moisture
(C) Both (A) and (B)
(D) None of these
Show Answer
Answer: (C) Both (A) and (B)
Q5. For slaking of 10 kg of
CaO, the theoretical amount of water is
(A) 2.2 kg
(B) 1.5 kg
(C) 3.2 kg
(D) None of these
Show Answer
Answer: (C) 3.2 kg
Q6. The cement becomes
unsound by the presence of excess
(A) Sulphur
(B) Magnesia
(C) Lime
(D) All of these
Show Answer
Answer: (D) All of these
Q7. Granite is not suitable
for ordinary building purpose because
(A) It cannot be polished
(B) It is not a fire proof material
(C) It is costly
(D) It has less crushing strength
Show Answer
Answer: (C) It is costly
Q8. Plywood is made from
(A) Common timber
(B) Bamboo fibre
(C) Teak wood only
(D) Asbestos sheets
Show Answer
Answer: (C) Teak wood only
Q9. For one cubic metre of
brick masonry, number of bricks required, is
(A) 400
(B) 425
(C) 450
(D) 500
Show Answer
Answer: (D) 500
Q10. Lacquer paints
(A) Are generally applied on structural steel
(B) Are less durable as compared to enamel paints
(C) Consist of resin and nitro-cellulose
(D) All the above
Show Answer
Answer: (D) All the above
Q11. A 1st class brick
immersed in water for 24 hours, should not absorb water (by weight) more than
(A) 10 %
(B) 15 %
(C) 20 %
(D) 25 %
Show Answer
Answer: (C) 20 %
Q12. Rapid hardening cement
contains
(A) Tri-calcium silicate
(B) Tri-calcium aluminate
(C) Tetra-calcium alumino-ferrite
(D) Di-calcium silicate
Show Answer
Answer: (A) Tri-calcium silicate
Q13. Glazing is used to make
earthenware
(A) Hard
(B) Soft
(C) Porous
(D) Impervious
Show Answer
Answer: (D) Impervious
Q14. The preparation of
surface of stone to obtain plain edges or to obtain stones of required size and
shape is known as
(A) Quarrying of stones
(B) Blasting of stones
(C) Seasoning of stones
(D) Dressing of stones
Show Answer
Answer: (D) Dressing of stones
Q15. In order of increasing
percentage of silica, the correct sequence is
(A) Sandy clay, calcareous clay, pure clay
(B) Calcareous clay, pure clay, sandy clay
(C) Pure clay, sandy clay, calcareous clay
(D) None of these
Show Answer
Answer: (B) Calcareous clay, pure clay, sandy clay
Building
Materials Questions and Answers – Set 15
Q1. In the cement the
compound quickest to react with water, is
(A) Tri-calcium aluminate
(B) Tetra-calcium alumino-ferrite
(C) Tri-calcium silicate
(D) Di-calcium silicate
Show Answer
Answer: (A) Tri-calcium aluminate
Q2. The hardest rock is
(A) Marble
(B) Diamond
(C) Talc
(D) Quartz
Show Answer
Answer: (B) Diamond
Q3. Which of the following
timbers is suitable for making sports goods?
(A) Mulberry
(B) Mahogany
(C) Sal
(D) Deodar
Show Answer
Answer:(A) Mulberry
Q4. Which of the following
gradients exerts maximum influence on properties of steel?
(A) Iron
(B) Carbon
(C) Manganese
(D) Sulphur
Show Answer
Answer: (B) Carbon
Q5. Wrought iron is used for
(A) Structural works in beams
(B) Small sized water pipes
(C) Columns and struts
(D) None to these
Show Answer
Answer: (B) Small sized water pipes
Q6. The stones obtained by
blasting are used as
(A) Ballast in railways
(B) Aggregates for concrete
(C) Road metal
(D) All the above
Show Answer
Answer: (D) All the above
Q7. Stainless steel contains
(A) 18% of chromium and 8% nickel
(B) 8% of chromium and 18% of nickel
(C) 12% of chromium and 36% of nickel
(D) 36% of chromium and 12% of nickel
Show Answer
Answer: (A) 18% of chromium and 8% nickel
Q8. Pick up the correct
statement from the following:
(A) Corrugated sheet iron is made by passing plain sheets
between grooved rollers
(B) Strength and stiffness of corrugated sheets are considerably increased
(C) Corrugated sheets are generally used on slanting roofs
(D) All the above
Show Answer
Answer: (D) All the above
Q9. The minimum percentage
of silica, alumina and ferric oxide in lime for white washing, is
(A) 20
(B) 15
(C) 5
(D) 0
Show Answer
Answer: (D) 0
Q10. Excess of silica in
brick earth results in
(A) Cracking and warping of bricks
(B) Loss of cohesion
(C) Enhancing the impermeability of bricks
(D) None of the above
Show Answer
Answer: (B) Loss of cohesion
Q11. The process of mixing
clay, water and other ingredients to make brick is known as
(A) Kneading
(B) Moulding
(C) Pugging
(D) Drying
Show Answer
Answer:(A) Kneading
Q12. Mastic asphalt is
(A) Water proof
(B) Fire proof
(C) Elastic
(D) All the above
Show Answer
Answer: (D) All the above
Q13. Which one of the
following is acid resistant asbestos?
(A) Actinolite asbestos
(B) Amosite asbestos
(C) Anthophylite asbestos
(D) All the above
Show Answer
Answer:(D) All the above
Q14. The type of steel used
for precision levelling staff, is
(A) Titanium steel
(B) Carbon steel
(C) Invar
(D) Stainless steel
Show Answer
Answer: (C) Invar
Q15. Pick up the correct
statement from the following:
(A) Lime is available in Free State
(B) Lime is available by dissolving calcium carbonate in water
(C) Lime is available by calcining calcium carbonate at 900°C
(D) Lime is nothing but calcium chloride
Show Answer
Answer: (C) Lime is available by calcining calcium carbonate at
900°C
Building
Materials Multiple Choice Questions – Set 16
Q1. The frog of the brick in
a brick masonry is generally kept on
(A) Bottom face
(B) Top face
(C) Shorter side
(D) Longer side
Show Answer
Answer: (B) Top face
Q2. The plastics made from
cellulose resin
(A) Are as clear as glass
(B) Are tough and strong
(C) Possess excellent electrical properties
(D) All the above
Show Answer
Answer: (D) All the above
Q3. In a rock calcium
carbonate predominates. State whether it is :
(A) Siliceous rock
(B) Argillaceous rock
(C) Calcareous rock
(D) None of these
Show Answer
Answer: (C) Calcareous rock
Q4. Pick up the correct
statement from the following:
(A) Roasting is not necessary if iron ore is an oxide
(B) Impurities float on the molten iron as slag
(C) The slag contains lime about 45%
(D) All the above
Show Answer
Answer: (D) All the above
Q5. Polymerization helps to
improve the property of
(A) Strength
(B) Rigidity
(C) Elasticity
(D) All of these
Show Answer
Answer: (D) All of these
Q6. The cracks which extend
from bark towards the sap wood in the cross section of a tree, are called
(A) Radial shakes
(B) Star shakes
(C) Heart shakes
(D) Cup shakes
Show Answer
Answer: (B) Star shakes
Q7. For obtaining vinyl
chloride acetate, the method used, is
(A) Addition polymerization
(B) Condensation polymerization
(C) Co-polymerization
(D) None of these
Show Answer
Answer: (C) Co-polymerization
Q8. For filling cracks in
masonry structures, the type of bitumen used, is
(A) Cut-back bitumen
(B) Bitumen-emulsion
(C) Blown bitumen
(D) Plastic bitumen
Show Answer
Answer:(D) Plastic bitumen
Q9. The steel used for rails
under heavy traffic and on sharp curves, is
(A) Nickel steel
(B) Chrome steel
(C) Manganese steel
(D) Vanadium steel
Show Answer
Answer: (C) Manganese steel
Q10. Whitworth compressed
steel is obtained when molten steel is subjected to a pressure of
(A) 5 kg/mm2
(B) 9 kg/mm2
(C) 13 kg/mm2
(D) 15 kg/mm2
Show Answer
Answer:(B) 9 kg/mm2
Q11. Expanded metal is
(A) Manufactured from steel sheets
(B) Used for reinforced concrete in road pavements
(C) Measured in term of SWM (short way mesh) and LWM (long way mesh)
(D) All the above
Show Answer
Answer: (D) All the above
Q12. The steel used in
R.C.C. work is
(A) Stainless steel
(B) Mild steel
(C) High carbon steel
(D) Wrought iron
Show Answer
Answer: (B) Mild steel
Q13. The normal consistency
of ordinary Portland cement is about
(A) 10 %
(B) 20 %
(C) 30 %
(D) 40 %
Show Answer
Answer: (C) 30 %
Q14. Pick up the plutonic
rock from the following:
(A) Granite
(B) Dolerite
(C) Basalt
(D) All the above
Show Answer
Answer: (A) Granite
Q15. Pick up the rock which
is not a sedimentary rock from the following:
(A) Gravel
(B) Sand stone
(C) Gypsum
(D) Dolerite
Show Answer
Answer: (D) Dolerite
Building
Materials and Construction Multiple Choice Questions – Set 17
Q1. Lacquer is
(A) Oil paint
(B) Distemper
(C) Spirit varnish
(D) None to these
Show Answer
Answer: (C) Spirit varnish
Q2. The portion of the brick
without a triangular corner equal to half the width and half the length, is
called
(A) Closer
(B) Queen closer
(C) King closer
(D) Squint brick
Show Answer
Answer: (C) King closer
Q3. Acrylic is the name of
(A) Cellulose resin
(B) Alkyd resin
(C) Methyl methacrylate
(D) Cumarone-indene
Show Answer
Answer: (C) Methyl methacrylate
Q4. Plaster of Paris is
obtained by calcining
(A) Bauxite
(B) Gypsum
(C) Lime stone
(D) None of these
Show Answer
Answer:(B) Gypsum
Q5. Cement is said to be of
good quality if
(A) Its color is not greenish grey
(B) One feels cool by thrusting one’s hand in the cement bag
(C) A handful of cement thrown into a bucket of water does not float
(D) None of these
Show Answer
Answer: (D) None of these
Q6. The PVC doors and
windows are preferred as they are
(A) Rust proof
(B) Rot proof
(C) Water proof
(D) All of these
Show Answer
Answer: (D) All of these
Q7. Pick up the correct
statement from the following:
(A) The lime in excess makes the cement unsound and causes the
cement to expand and disintegrate
(B) The silica in excess makes the cement stronger but its setting time also
increases
(C) The excess amount of alumina weakens the cement
(D) All the above
Show Answer
Answer: (D) All the above
Q8. The silica is used for
preparing
(A) Silica bricks
(B) Coke oven
(C) Lining for glass furnaces
(D) All of these
Show Answer
Answer: (D) All of these
Q9. The sequence of
refractory materials according to increasing melting points is:
(A) Dolomite, Magnesia, Bauxite, Chromites
(B) Bauxite, Chromites, Dolomite, Magnesia
(C) Magnesia, Bauxite, Dolomite, Chromites
(D) None of these
Show Answer
Answer: (B) Bauxite, Chromites, Dolomite, Magnesia
Q10. Priming consists of
(A) One part of white lead, 8 parts of chalk and four parts of
twice boiled linseed oil
(B) 8 parts of white lead, one part of chalk and four parts of twice boiled
linseed oil
(C) One part of white lead, 8 parts of chalk and one part of linseed oil
(D) None to these
Show Answer
Answer: (A) One part of white lead, 8 parts of chalk and four
parts of twice boiled linseed oil
Q11. The timber having
maximum resistance against white ants, is obtained from
(A) Chir
(B) Shishum
(C) Sal
(D) Teak
Show Answer
Answer: (B) Shishum
Q12. Upto a maximum of 72%
of iron, is available in
(A) Magnetite
(B) Limonite
(C) Siderite
(D) Iron pyrites
Show Answer
Answer: (A) Magnetite
Q13. The coefficient of
hardness of stones used in road work should be greater than
(A) 10
(B) 12
(C) 15
(D) 17
Show Answer
Answer: (D) 17
Q14. Duco is one of the
patent forms of
(A) Emulsion paints
(B) Plastic paints
(C) Bituminous paints
(D) Cellulose paints
Show Answer
Answer: (D) Cellulose paints
Q15. The melting point of
silica is:
(A) 1570°C
(B) 1630°C
(C) 1730°C
(D) 1850°C
Show Answer
Answer:(C) 1730°C
Building
Materials and Construction Objective Questions – Set 18
Q1. Manganese steels
(A) Are non-magnetic
(B) Possess high electrical resistance
(C) Possess low coefficient of expansion
(D) All the above
Show Answer
Answer: (D) All the above
Q2. Quartzite, a metamorphic
stone is
(A) Hard
(B) Brittle
(C) Crystalline
(D) All the above
Show Answer
Answer: (D) All the above
Q3. Lime stones are
generally known as
(A) Aqueous rocks
(B) Sedimentary rocks
(C) Stratified rocks
(D) All the above
Show Answer
Answer: (D) All the above
Q4. The most commonly used base
for timber painting, is
(A) Red lead
(B) Zinc white
(C) White lead
(D) Titanium white
Show Answer
Answer: (C) White lead
Q5. If water required for 1
bag of cement is 30 liters, the water cement ratio is :
(A) 0.40
(B) 0.50
(C) 0.60
(D) None of these
Show Answer
Answer: (C) 0.60
Q6. Stones used for rubble
masonry must be
(A) Soft
(B) Hard
(C) Light
(D) Heavy
Show Answer
Answer: (B) Hard
Q7. Pick up the correct
statement from the following:
(A) Adding 5% to 6% of moisture content by weight, increases the
volume of dry sand from 18% to 38%
(B) The bulking of fine sand is more than that of coarse sand
(C) If the percentage content of moisture exceeds 10%, increase in bulk of sand
starts increasing
(D) All the above
Show Answer
Answer: (D) All the above
Q8. A piece of timber whose
thickness and width are respectively 5 cm and 10 cm is called
(A) Slate
(B) Plank
(C) Board
(D) Strip
Show Answer
Answer: (D) Strip
Q9. The property by virtue
of which lime sets under water, is known as
(A) Slacking
(B) Setting
(C) Hydraulicity
(D) Calcining
Show Answer
Answer: (C) Hydraulicity
Q10. Pick up the correct
statement from the following:
(A) For thin structures subjected to wetting and drying, the
water cement ratio should be 0.45
(B) For mass concrete structures subjected to wetting and drying, the water
ratio should be 0.55
(C) For thin structures which remain continuously under water, the water-cement
ratio by weight should be 0.55
(D) All the above
Show Answer
Answer: (D) All the above
Q11. The percentage of water
for normal consistency, is
(A) 5% to 15%
(B) 10% to 25%
(C) 15% to 25%
(D) 20% to 30%
Show Answer
Answer: (C) 15% to 25%
Q12. Porcelain is used as:
(A) Sanitary wares
(B) Electric insulators
(C) Storage vessels
(D) Reactor chambers
Show Answer
Answer: (D) Reactor chambers
Q13. Quartzite is a
(A) Metamorphic rock
(B) Argillaceous rock
(C) Calcareous rock
(D) Siliceous rock
Show Answer
Answer: (D) Siliceous rock
Q14. Pick up the correct
statement from the following:
(A) The baked earth is called terra-cotta
(B) The articles prepared from clay which is burnt at low temperature and
cooled down slowly, are called earthen-ware
(C) The articles prepared from refractory clays which as mixed with stone and
crushed pottery, are called stone ware
(D) All the above
Show Answer
Answer: (D) All the above
Q15. The lime which contains
high percentage of calcium oxide, is generally called
(A) Fat lime
(B) Rich lime
(C) White lime
(D) None of these
Show Answer
Answer: (D) None of these
Building
Materials Exam Questions – Set 19
Q13. Sewer pipes are made of
(A) Earthen ware
(B) Stone ware
(C) Refractory clay
(D) All the above
Show Answer
Answer: (B) Stone ware
Q14. The specific gravity of
marble, is
(A) 2.50
(B) 2.60
(C) 2.66
(D) 2.72
Show Answer
Answer: (D) 2.72
Q15. Geologically, marble is
known as
(A) Sedimentary rock
(B) Igneous rock
(C) Metamorphic rock
(D) Stratified rock
Show Answer
Answer: (C) Metamorphic rock
Limestone
and Building Materials Exam Questions – Set 20
Show Answer
Answer: (B) A mixture of cement and asphalt
Q3. Iron ore may contain
(A) Carbon
(B) Silicon
(C) Phosphorus and manganese
(D) All the above
Show Answer
Answer: (D) All the above
Q4. The rock generally used
for roofing, is
(A) Granite
(B) Basalt
(C) Slate
(D) Pumice
Show Answer
Answer: (C) Slate
Q5. Pick up the correct
statement from the following:
(A) Rusting is caused due to combined action of air, moisture
and carbon dioxide
(B) During rusting, first ferrous bicarbonates are formed
(C) On further oxidation ferrous bicarbonates get converted to ferric
bicarbonates
(D) All the above
Show Answer
Answer: (D) All the above
Q6. Pick up the incorrect
statement from the following:
(A) Plastics are chemical resistant
(B) Plastics are durable
(C) Plastics are ductile
(D) Plastics are excellent electric insulators
Show Answer
Answer: (C) Plastics are ductile
Q7. The lime which contains
mainly calcium oxide and slacks with water, is
(A) Fat lime
(B) Quick lime
(C) Hydraulic lime
(D) Poor lime
Show Answer
Answer: (B) Quick lime
Q8. The commonly used base
for iron and steel work, is
(A) Red lead
(B) Zinc white
(C) White lead
(D) Titanium white
Show Answer
Answer: (A) Red lead
Q9. The cracks caused by
shrinkage of the exterior surface of the wood exposed to atmosphere, are called:
(A) Radial shakes
(B) Heart shakes
(C) Wind cracks
(D) Twisted fibres
Show Answer
Answer: (C) Wind cracks
Q10. The standard size of
masonry bricks, is
(A) 18 cm × 8 cm × 8 cm
(B) 19 cm × 9 cm × 9 cm
(C) 20 cm × 10 cm × 10 cm
(D) 21 cm × 11 cm × 11 cm
Show Answer
Answer: (B) 19 cm × 9 cm × 9 cm
Q11. For high grade
instruments the steel preferred to, is
(A) Cast steel
(B) Bessemer steel
(C) Mild steel
(D) Whitworth compressed steel
Show Answer
Answer: (A) Cast steel
Q12. Pig iron is
manufactured from the ores by
(A) Dressing
(B) Calcination and roasting
(C) Smelting
(D) All the above
Show Answer
Answer: (D) All the above
Q13. The proportions of
charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
(A) 15, 75, 10
(B) 75, 10, 15
(C) 10, 15, 75
(D) 10, 75, 15
Show Answer
Answer: (A) 15, 75, 10
Q14. Bitumen felt is used
for
(A) Water proofing
(B) Damp proofing
(C) Both (A) and (B)
(D) Neither (A) nor (B)
Show Answer
Answer: (C) Both (A) and (B)
Q15. Pick up the correct
statement from the following:
(A) The plywoods do not split or crack due to changes in
atmosphere
(B) The commercial plywoods are available upto 150 cm wide and upto 300 cm long
(C) The plywoods possess uniform tensile strength in all directions
(D) All the above
Show Answer
Answer: (D) All the above
Building
Materials Interview Questions – Set 21
Q1. Knots in timber are
(A) Defects caused by crushing fibres
(B) Splits radiating from the centre
(C) Speckled strains
(D) Signs of branches cut off
Show Answer
Answer: (D) Signs of branches cut off
Q2. The most important
constituent of an oil paint, is
(A) Thinner
(B) Vehicle
(C) Pigment
(D) All the above
Show Answer
Answer: Option D
Q3. Jhumb bricks are
(A) Under burnt
(B) Over burnt
(C) Kutcha
(D) None of these
Show Answer
Answer: (B) Over burnt
Q4. Pick up correct
statement from the following:
(A) Fibre boards are used for thermal and acoustic control
(B) Fibre boards are used for light weight standing members
(C) Fibre boards are obtained by impregnating a resin product on fibres
(D) All the above
Show Answer
Answer: (D) All the above
Q5. Acrylic sheets
(A) Possess 10 to 17 times greater breakage resistance than that
of glass of equivalent thickness
(B) Are generally unaffected by most household detergents
(C) Possess the light transmission rate of 93%
(D) All the above
Show Answer
Answer: (D) All the above
Q6. Pick up the correct
statement from the following:
(A) Steel produced by open hearth process is milder than that
obtained by the Bessemer process
(B) Engineers prefer open hearth steel for structural purpose as it is more
homogenous
(C) Basic Bessemer process is suitable for converting poor ore containing a
large proportion of sulphur and phosphorus into steel
(D) All the above
Show Answer
Answer: (D) All the above
Q7. Portland cement
manufactured from pure white chalk and clay but free from iron-oxide, is known
as
(A) Quick setting cement
(B) Rapid hardening cement
(C) White cement
(D) Low heat Portland cement
Show Answer
Answer: (C) White cement
Q8. Brass is an alloy of
(A) Copper and zinc
(B) Zinc and lead
(C) Tin and silver
(D) Zinc and nickel
Show Answer
Answer: (A) Copper and zinc
Q9. Refractory bricks resist
(A) High temperature
(B) Chemical action
(C) Dampness
(D) All the above
Show Answer
Answer: (A) High temperature
Q10. Pick up the correct
statement from the following:
(A) Slaked lime contains calcium hydroxide
(B) Quick lime contains calcium oxide
(C) Slaked lime may be obtained from quick lime
(D) All the above
Show Answer
Answer: (D) All the above
Q11. Pick up the
polymineralic rock from the following:
(A) Quartz sand
(B) Pure gypsum
(C) Magnesite
(D) Granite
Show Answer
Answer:(D) Granite
Q12. The thermosetting
plastic
(A) Becomes rigid when moulded at suitable pressure and temperature
(B) At 127°C to 177°C permanently set and further application of heat does not
soften it
(C) Chars at 343°C
(D) All the above
Show Answer
Answer: (D) All the above
Q13. The minimum compressive
strength of 1st class bricks should be
(A) 75 kg/cm2
(B) 90 kg/cm2
(C) 100 kg/cm2
(D) 120 kg/cm2
Show Answer
Answer: (C) 100 kg/cm2
Q14. Pick up the hypabyssal
rock from the following:
(A) Granite
(B) Dolerite
(C) Basalt
(D) All the above
Show Answer
Answer: (B) Dolerite
Q15. Commonly used thinner
in
(A) Lacquer paints, is alcohol
(B) Cellulose paints is ethyl acetate
(C) Oil paints, is naphtha
(D) All the above
Show Answer
Answer: (D) All the above
Building
Materials Objective Questions – Set 22
Q1. The curved swellings
from the growth of layers or wounds left after branches are cut off in an
irregular manner are known as
(A) Knots
(B) Rindgalls
(C) Burls
(D) None of these
Show Answer
Answer: (B) Rindgalls
Q2. Seasoning is
(A) A process of removing sap
(B) Creosoting
(C) Painting with sodium silicate
(D) Coating with tar
Show Answer
Answer: (A) A process of removing sap
Q3. The presence of sand in
brick earth prevents:
(A) Cracking of bricks
(B) Shrinkage of bricks
(C) Warping of bricks
(D) None of these
Show Answer
Answer: (C) Warping of bricks
Q4. Bitumen completely
dissolves in
(A) Carbon bisulphide
(B) Chloroform
(C) Coal tar
(D) All of these
Show Answer
Answer: (D) All of these
Q5. Soundness test of cement
determines
(A) Quality of free lime
(B) Ultimate strength
(C) Durability
(D) Initial setting
Show Answer
Answer: (A) Quality of free lime
Q6. Refractory bricks are
(A) Neutral refractory bricks
(B) Acid refractory bricks
(C) Basic refractory bricks
(D) All the above
Show Answer
Answer: (D) All the above
Q7. A stone is rejected if
it absorbs water more than
(A) 5 %
(B) 10 %
(C) 15 %
(D) 20 %
Show Answer
Answer: (B) 10 %
Q8. Turpentine oil is used
in paints as
(A) Thinner
(B) Vehicle
(C) Base
(D) Drier
Show Answer
Answer:(A) Thinner
Q9. A prime coat is given to
steel work with
(A) An oxide of iron paint
(B) A mixture of white lead and lead paint
(C) A special paint
(D) Cement paint
Show Answer
Answer: (B) A mixture of white lead and lead paint
Q10. The most commonly used
synthetic abrasive is
(A) Aluminium carbide
(B) Boric acid
(C) Silicon
(D) All of these
Show Answer
Answer: (D) All of these
Q11. Stucco paints are
suitable for
(A) Stone masonry
(B) Brick walls
(C) Both (A) and (B)
(D) Neither (A) nor (B)
Show Answer
Answer: (C) Both (A) and (B)
Q12. Teak wood is suitable
for
(A) Sports articles
(B) Furnitures
(C) Railway sleepers
(D) All the above
Show Answer
Answer: (B) Furnitures
Q13. During smelting
process, the combination of fuel in the furnace
(A) Forms carbon dioxide
(B) Carbon dioxide with carbon forms carbon mono-oxide
(C) Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2
(D) All the above
Show Answer
Answer: (D) All the above
Q14. Stones used for
ornamental work must be
(A) Soft
(B) Hard
(C) Light
(D) Heavy
Show Answer
Answer: (A) Soft
Q15. Elastomers can extend
upto
(A) Five times their original dimensions
(B) Seven times their original dimensions
(C) Ten times their original dimensions
(D) Three times their original dimensions
Show Answer
Answer:(C) Ten times their original dimensions
Building
Materials Questions and Answers pdf – Set 23
Q1. According to ISI,
bitumen is classified into
(A) 2 grades
(B) 4 grades
(C) 8 grades
(D) 10 grades
Show Answer
Answer: (D) 10 grades
Q2. Lime stone is not a
(A) Sedimentary rock
(B) Stratified rock
(C) Aqueous rock
(D) Metamorphic rock
Show Answer
Answer: (D) Metamorphic rock
Q3. Bitumen in
(A) Solid state, is called asphalt
(B) Semi fluid state, is called mineral tar
(C) Fluid state, is called petroleum
(D) All the above
Show Answer
Answer: (D) All the above
Q4. Basalt is
(A) Sedimentary rock
(B) Metamorphic rock
(C) Extrusive igneous rock
(D) Intrusive igneous rock
Show Answer
Answer: (C) Extrusive igneous rock
Q5. Pick up the correct
statement from the following:
(A) The heating of a material to redness in contact with air, is
known as calcination
(B) The property of lime by which it sets or hardens in damp places having no
free circulation of air is called setting
(C) The product that remains after calcination of limestone, is called lime
(D) All the above
Show Answer
Answer: (D) All the above
Q6. Varnish is a transparent
or semi-transparent solution of resinous substances in
(A) Alcohol
(B) Linseed
(C) Turpentine
(D) All the above
Show Answer
Answer: (D) All the above
Q7. The size of mould for
bricks, is generally kept
(A) A little large to specified size
(B) A little small to specified size
(C) Equal to specified size
(D) 10% larger than specified size
Show Answer
Answer: (A) A little large to specified size
Q8. Pick up the correct
statement from the following:
(A) The average crushing strength of hand moulded bricks is 6000
t/m2
(B) The average tensile strength of hand moulded brick is 200 t/m2
(C) The average shearing strength of hand moulded brick is 600 t/m2
(D) All the above
Show Answer
Answer: (D) All the above
Q9. Refractory bricks are
used for
(A) Retaining walls
(B) Columns
(C) Piers
(D) Combustion chambers
Show Answer
Answer: (D) Combustion chambers
Q10. For construction of
structures under water, the type of lime used, is
(A) Hydraulic lime
(B) Fat lime
(C) Quick lime
(D) Pure lime
Show Answer
Answer: (A) Hydraulic lime
Q11. Snowcrete is one of the
patent forms of
(A) Distempers
(B) Water proof cement paints
(C) Enamel paints
(D) Cellulose paints
Show Answer
Answer: (B) Water proof cement paints
Q12. Minimum required water
cement ratio for a workable concrete, is
(A) 0.30
(B) 0.40
(C) 0.50
(D) 0.60
Show Answer
Answer: (B) 0.40
Q13. French polish is
(A) Oil paint
(B) Distemper
(C) Spirit varnish
(D) None to these
Show Answer
Answer: (C) Spirit varnish
Q14. Cast iron is used for
(A) Structural works in beams
(B) Small sized water pipes
(C) Columns and struts
(D) None to these
Show Answer
Answer: (C) Columns and struts
Q15. Minimum of 40% of iron,
is available in
(A) Magnetite
(B) Red haematite
(C) Limonite
(D) Black band
Show Answer
Answer: (D) Black band
Building
Materials and Construction Objective type Questions pdf – Set 24
Q1. Ultimate strength to
cement is provided by
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Show Answer
Answer: (B) Di-calcium silicate
Q2. Pick up the correct
statement from the following:
(A) The percentage of absorption for firebricks varies from 5 to
10
(B) The percentage of silica in silica bricks is to the extent of about 95 to
97 percent
(C) Roughly 1 to 2 percent of lime in silica bricks is added to act as binding
material
(D) All the above
Show Answer
Answer: (D) All the above
Q3. Portland pozzolana
cement possesses
(A) Higher resistance to chemical attack
(B) Lower heat of hydration
(C) Lower shrinkage on drying
(D) All the above
Show Answer
Answer: (D) All the above
Q4. Wrought iron contains
carbon about
(A) 1.5% to 5.5%
(B) 0.5% to 1.75%
(C) 0.1% to 0.25%
(D) None to these
Show Answer
Answer: (C) 0.1% to 0.25%
Q5. Good quality cement
contains higher percentage of
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Show Answer
Answer: (A) Tri-calcium silicate
Q6. Dextrin is
(A) Animal glue
(B) Starch glue
(C) Albumin glue
(D) Rubber based adhesive
Show Answer
Answer: (D) Rubber based adhesive
Q7. Galvanising means
covering iron with a thin coat of
(A) Tin
(B) Zinc
(C) Glaze
(D) Coal tar
Show Answer
Answer: (B) Zinc
Q8. Laterite is a/an
(A) Volcanic rock
(B) Argillaceous rock
(C) Calcareous rock
(D) Siliceous rock
Show Answer
Answer:(B) Argillaceous rock
Q9. Mastic asphalt is
normally used for
(A) Sound insulation
(B) Water proofing
(C) Fire proofing
(D) None to these
Show Answer
Answer: (B) Water proofing
Q10. The rocks in which
argil (or clay) predominates, are called
(A) Siliceous rocks
(B) Argillaceous rocks
(C) Calcareous rocks
(D) Igneous rocks
Show Answer
Answer: (B) Argillaceous rocks
Q11. Seasoning of timber is
essential to remove
(A) Knots from timber
(B) Sap from timber
(C) Twisted fibre from timber
(D) Roughness of timber
Show Answer
Answer: (B) Sap from timber
Q12. The steel which
contains fissures and cavities, is manufactured by
(A) Cementation process
(B) Crucible process
(C) Bessemer process
(D) Open hearth process
Show Answer
Answer: (A) Cementation process
Q13. Name the type of cement
from the following for canal linings:
(A) Sulphate resisting cement
(B) Rapid hardening cement
(C) Quick setting cement
(D) Pozzolana cement
Show Answer
Answer: (A) Sulphate resisting cement
Q14. The term frog means
(A) An apparatus to lift the stone
(B) A depression on a face of brick
(C) Vertical joint in a brick work
(D) Soaking brick in water
Show Answer
Answer: (B) A depression on a face of brick
Q15. Based on flow quality,
the sequence of pipes is
(A) A.C. pipes, G.I. pipes, C.I. pipes, PVC pipes
(B) C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes
(C) C.I. pipes, G.I. pipes, PVC pipes, A.C. pipes
(D) None of these
Show Answer
Answer: (B) C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes
Building
Materials Quiz Questions – Set 25
Q1. Pick up the correct
statement from the following:
(A) Hornblende mineral is brittle
(B) Muscovite is also known as white mica and potash mica
(C) Biotite is also known as black-mica
(D) All the above
Show Answer
Answer: (D) All the above
Q2. Brittleness of cold is
due to an excess of
(A) Sulphur
(B) Carbon
(C) Phosphorus
(D) Silicon
Show Answer
Answer: (C) Phosphorus
Q3. The compound of Portland
cement which contributes to the strength after two to three years is
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra-calcium alumino ferrite
Show Answer
Answer: (B) Di-calcium silicate
Q4. Good quality sand is
never obtained from
(A) River
(B) Lake
(C) Sea
(D) Gravel powder
Show Answer
Answer: (C) Sea
Q5. Asbestos cement
(A) Is brittle
(B) Warps due to changes in humidity
(C) Strength is lowered when saturated by water
(D) All of the above
Show Answer
Answer: (D) All of the above
Q6. Bessemer process is used
for the manufacture of
(A) Pig iron
(B) Cast iron
(C) Wrought iron
(D) Steel
Show Answer
Answer: (D) Steel
Q7. Lime mortar is generally
made with
(A) Quick lime
(B) Fat lime
(C) Hydraulic lime
(D) Plain lime
Show Answer
Answer: (C) Hydraulic lime
Q8. Gneiss is obtained from
(A) Igneous rocks
(B) Metamorphic rocks
(C) Sedimentary rocks
(D) Sedimentary metamorphic rocks
Show Answer
Answer: (D) Sedimentary metamorphic rocks
Q9. Which one of the
following is an air binding material?
(A) Gypsum
(B) Acid-resistant cement
(C) Quick lime
(D) All of these
Show Answer
Answer: (D) All of these
Q10. Pick up the compound
responsible for early strength of cement from the following:
(A) Tetra-calcium alumino-ferrite
(B) Tri-calcium silicate
(C) Tri-calcium aluminate
(D) Di-calcium silicate
Show Answer
Answer: (B) Tri-calcium silicate
Q11. Fibre glass
(A) Retains heat-longer
(B) Has a higher strength to weight ratio
(C) Is shock proof and fire retardant
(D) All the above
Show Answer
Answer: (D) All the above
Q12. A good quality stone
absorbs water less than
(A) 5 %
(B) 10 %
(C) 15 %
(D) 25 %
Show Answer
Answer: (A) 5 %
Q13. Linseed oil is used in
paints as
(A) Thinner
(B) Vehicle
(C) Base
(D) Drier
Show Answer
Answer: (D) Drier
Q14. Pick up the correct
statement from the following:
(A) The theory of formation of concrete is based on the
phenomena of formation of voids
(B) The bulking of sand is taken into account while volumetric proportioning of
the aggregates
(C) The dry sand and the sand completely flooded with water, have practically
the same volume
(D) All the above
Show Answer
Answer: (D) All the above
Q15. The slag which floats
on the surface of the molten iron generally contains
(A) Lime (CaO) 45%
(B) Silica (SiO2) 35%
(C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8%
(D) All the above
Show Answer
Answer: (D) All the above
Building
Materials Fasteners and Adhesives Review Questions – Set 26
Q1. Asphalt is obtained from
(A) Petroleum distillation
(B) Bitumen distillation
(C) Plastic distillation
(D) None of these
Show Answer
Answer: (A) Petroleum distillation
Q2. The commonly used color
pigment in paints, is
(A) Ambers
(B) Carbon black
(C) Iron oxide
(D) All the above
Show Answer
Answer: (D) All the above
Q3. For the manufacture of
plywood, veneers are placed so that grains of adjacent veneers
(A) Run at right angles
(B) Parallel
(C) Inclined at 45°
(D) Inclined at 60°
Show Answer
Answer: (A) Run at right angles
Q4. Percentage content of
silica in window glass, is
(A) 40 to 45
(B) 50 to 55
(C) 60 to 65
(D) 70 to 75
Show Answer
Answer: (D) 70 to 75
Q5. The variety of pig iron
used for the manufacture of steel by Bessemer process, is
(A) Bessemer pig
(B) Grey pig
(C) White forge pig
(D) Mottled pig
Show Answer
Answer: (A) Bessemer pig
Q6. The commonly used drying
oil for oil paints, is
(A) Olive oil
(B) Linseed oil
(C) Kerosene oil
(D) Acetate of lead
Show Answer
Answer: (D) Acetate of lead
Q7. Most commonly used solvent
in oil paints, is
(A) Petroleum
(B) Spirit
(C) Coal tar
(D) Turpentine
Show Answer
Answer: (A) Petroleum
Q8. Vanadium steel is
generally used for
(A) Railway switches and crossing
(B) Bearing balls
(C) Magnets
(D) Axles and springs
Show Answer
Answer: (D) Axles and springs
Q9. Initial setting of
cement is caused due to
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Show Answer
Answer: (C) Tri-calcium aluminate
Q10. The harmonious mixing
of the clay ingredients, is known as
(A) Weathering
(B) Blending
(C) Tempering
(D) None of these
Show Answer
Answer: (B) Blending
Q11. A badly mixed cement
concrete results in
(A) Segregation
(B) Bleeding
(C) Honey combing
(D) None of these
Show Answer
Answer: (C) Honey combing
Q12. Wrought iron is
manufactured from pig iron by
(A) Refining
(B) Pudding
(C) Shingling
(D) All the above
Show Answer
Answer: (D) All the above
Q13. Bitumen felt
(A) Is used as water proofing material
(B) Is used as damp proofing material
(C) Is made from bitumen and hessian fibres
(D) All the above
Show Answer
Answer: (D) All the above
Q14. Chemically, marble is
known as
(A) Metamorphic rock
(B) Argillaceous rock
(C) Calcareous rock
(D) Siliceous rock
Show Answer
Answer: (C) Calcareous rock
Q15. Fibre boards can be
(A) Distempered
(B) Painted
(C) Painted and distempered
(D) Used for furniture
Building
Materials Objective type Questions – Set 27
Q4. The clay to be used for
manufacturing bricks for a large project, is dugout and allowed to weather
throughout
(A) The monsoon
(B) The winter
(C) The summer
(D) None of these
Show Answer
Answer: (A) The monsoon
Q5. Mastic asphalt is
generally used for
(A) Damp proof course
(B) Water proof layer
(C) Partition walls
(D) Both (A) and (B)
Show Answer
Answer: (D) Both (A) and (B)
Q6. Bituminous fells are
used for
(A) Covering A.C. sheets
(B) Covering sloping roofs
(C) D.P.C.
(D) None to these
Show Answer
Answer: (A) Covering A.C. sheets
Q7. If the furnace is
provided with insufficient fuel at low temperatures, the type of pig iron
produced, is called
(A) Bessemer pig
(B) Grey or foundry pig
(C) White or forge pig
(D) Mottled pig
Show Answer
Answer: (C) White or forge pig
Q8. The most fire resistant
paints are:
(A) Enamel paints
(B) Aluminium paints
(C) Asbestos paints
(D) Cement paints
Show Answer
Answer: (C) Asbestos paints
Q9. Quick setting cement is
produced by adding
(A) Less amount of gypsum in very fine powdered form
(B) More amount of gypsum in very fine powdered form
(C) Aluminium sulphate in very fine powdered form
(D) Pozzolana in very fine powdered form
Show Answer
Answer: (C) Aluminium sulphate in very fine powdered form
Q10. Depending on the
chemical composition and mechanical properties, iron may be classified as
(A) Cast iron
(B) Wrought iron
(C) Steel
(D) All the above
Show Answer
Answer: (D) All the above
Q11. A pug mill is used for
(A) Softening brick earth
(B) Moulding brick earth
(C) Tempering brick earth
(D) Providing brick earth
Show Answer
Answer: (C) Tempering brick earth
Q12. Pick up the correct
statement from the following:
(A) The substance which consists of one primary chemical, is
known as monomer
(B) The polymer consists of thousands of monomers joined together
(C) The polymer molecule is called macro-molecule
(D) All the above
Show Answer
Answer: (D) All the above
Q13. The main constituent of
fly-ash, is
(A) Aluminium oxide
(B) Silica
(C) Ferrous oxide
(D) All of these
Show Answer
Answer: (D) All of these
Q14. A good brick earth should
contain:
(A) About 20% to 30% of alumina
(B) About 50% to 60% of silica
(C) Not more than 5% of lime
(D) All the above
Show Answer
Answer: (D) All the above
Q15. The normal curing
period for lime mortar, is:
(A) 1 day
(B) 3 days
(C) 7 days
(D) 10 days
Show Answer
Answer: (C) 7 days
Building
Materials and Construction Viva Questions – Set 28
Q1. German silver is an
alloy of
(A) Zinc, lead and nickel
(B) Silver, gold and lead
(C) Copper, nickel and zinc
(D) Copper, brass and zinc
Show Answer
Answer: (C) Copper, nickel and zinc
Q2. In stone masonry, stones
(stratified rocks) are so placed that the direction of pressure to the plane of
bedding is
(A) Right angles
(B) 45°
(C) 60°
(D) Parallel
Show Answer
Answer: (A) Right angles
Q3. Stones used for the
construction of retaining walls must be
(A) Soft
(B) Hard
(C) Light
(D) Heavy
Show Answer
Answer: (D) Heavy
Q4. Mild steel is used for
(A) Structural works in beams, joints and girders
(B) Small sized water pipes
(C) Columns and struts
(D) None of these
Show Answer
Answer: (A) Structural works in beams, joints and girders
Q5. For the manufacture of
stainless steel, steel is mixed with
(A) Chromium
(B) Nickel
(C) Tungsten
(D) None of these
Show Answer
Answer: (A) Chromium
Q6. The most durable varnish
is
(A) Water varnish
(B) Spirit varnish
(C) Turpentine varnish
(D) Oil varnish
Show Answer
Answer: (D) Oil varnish
Q7. Permanent magnets are
made of high carbon steel and
(A) 15% of cobalt
(B) 20% of cobalt
(C) 35% of cobalt
(D) 45% of cobalt
Show Answer
Answer: (D) 45% of cobalt
Q8. The most valuable timber
may be obtained from
(A) Chir
(B) Shishum
(C) Sal
(D) Teak
Show Answer
Answer: (D) Teak
Q9. The presence of original
rounded surface on the manufactured piece of timber, is called
(A) Wane
(B) Torn grain
(C) Diagonal grain
(D) Chipmark
Show Answer
Answer: (A) Wane
Q10. Softer variety of steel
may be obtained by
(A) Cementation process
(B) Crucible process
(C) Bessemer process
(D) Open hearth process
Show Answer
(C) Bessemer process
Q11. Stainless steel resists
corrosion due to
(A) Carbon
(B) Sulphur
(C) Vanadium
(D) Chromium
Show Answer
Answer: (D) Chromium
Q12. Mastic asphalt is
(A) Acid resisting material
(B) Non-corrosive material
(C) Corrosive material
(D) Heating-resisting material
Show Answer
Answer: (B) Non-corrosive material
Q13. In paints, the pigment
is responsible for
(A) Durability
(B) Color
(C) Smoothness
(D) Glassy face
Show Answer
Answer: (B) Color
Q14. Bitumen emulsion is
(A) A liquid containing bitumen in suspension
(B) A paint
(C) Used as anti-corrosive paint
(D) All the above
Show Answer
Answer: (D) All the above
Q15. The most important
constituent of varnish, is
(A) Drier
(B) Solvent
(C) Resin
(D) All the above
Show Answer
Answer: (D) All the above
Building
Materials MCQ – Set 29
Q1. The operation of removal
of impurities or clay adhering to iron ores, is known as
(A) Dressing
(B) Calcination
(C) Roasting
(D) Smelting
Show Answer
Answer: (A) Dressing
Q2. Plastic bitumen is
generally used for
(A) Road pavements
(B) Expansion joints
(C) Crack fillings
(D) None to these
Show Answer
Answer: (C) Crack fillings
Q3. A ferrous metal is
(A) Cast iron
(B) Wrought iron
(C) Steel
(D) All the above
Show Answer
Answer: (D) All the above
Q4. For lime concrete,
(A) Slump is 50 to 75 mm
(B) Flexural strength at 90 days is 0.2 N/mm2
(C) Compressive strength at 90 days is 1.5 N/mm2
(D) All the above
Show Answer
Answer: (D) All the above
Q5. Dry rot
(A) Cracks the timber
(B) Reduces the strength of timber
(C) Reduces the timber to powder
(D) Spoils the appearance of timber
Show Answer
Answer: (C) Reduces the timber to powder
Q6. Asbestos is
(A) Corrugated sheet used for roofing
(B) An incombustible fire proof material
(C) An organic substance
(D) All the above
Show Answer
Answer: (D) All the above
Q7. For making fly-ash
building bricks, the following mix of fly-ash, sand and lime, is
(A) 80 : 13 : 7
(B) 70 : 20 : 10
(C) 60 : 35 : 5
(D) None of these
Show Answer
Answer: (A) 80 : 13 : 7
Q8. The material generally
not used as extender in paints, is
(A) Powdered silica
(B) Gypsum
(C) Talc
(D) Zinc white
Show Answer
Answer: (D) Zinc white
Q9. Pozzolana (or surkhi) is
used in lime
(A) To impart hydraulicity
(B) To prevent shrinkage
(C) To decrease the cost of construction
(D) To decrease the setting time
Show Answer
Answer: (A) To impart hydraulicity
Q10. The rocks which are
formed due to pouring of magma at the earth’s surface are called
(A) Plutonic rocks
(B) Hypabyssal rocks
(C) Volcanic rocks
(D) Igneous rocks
Show Answer
Answer:(C) Volcanic rocks
Q11. Water paint is a
(A) White wash
(B) Color wash
(C) Whiting
(D) All the above
Show Answer
Answer: (D) All the above
Q12. Pick up the
non-inflammable plastic from the following:
(A) Cellulose acetate plastics
(B) Polyvinyl chloride plastics
(C) Phenol formaldehyde plastic
(D) Urea formaldehyde plastic
Show Answer
Answer: (B) Polyvinyl chloride plastics
Q13. The size of modular
bricks, is
(A) 10 × 10 × 9 cm
(B) 19 × 9 × 9 cm
(C) 22.5 × 10 × 8.5 cm
(D) 22.5 × 8.0 × 9 cm
Show Answer
Answer: (B) 19 × 9 × 9 cm
Q14. Invar contains
(A) 12% of nickel
(B) 24% of nickel
(C) 30% of nickel
(D) 36% of nickel
Show Answer
Answer: (D) 36% of nickel
Q15. For light and
ornamental casting, the most unsuitable pig iron, is
(A) Bessemer pig
(B) Grey or foundry pig
(C) White or forge pig
(D) Mottled pig
Show Answer
Answer: (D) Mottled pig
MCQ
Practice Test Building Materials – Set 30
Q1. Plywood is obtained by
gluing wooden sheets at
(A) 100 to 150 N/cm2
(B) 100 to 130°C
(C) Both (A) and (B)
(D) Neither (A) nor (B)
Show Answer
Answer: (C) Both (A) and (B)
Q2. Distemper is
(A) A paint consisting of powdered chalk, pigments and water
(B) A water proofing agent
(C) A paint consisting of colored cement and water
(D) A drying agent
Show Answer
Answer: (A) A paint consisting of powdered chalk, pigments and
water
Q3. Spirit varnish generally
consists of
(A) Oil, wax and resin
(B) Alcohol, wax and turpentine
(C) Pigment and synthetic resin
(D) Spirit and shellac
Show Answer
Answer: (D) Spirit and shellac
Q4. The plastics prepared
from Vinyl resin are
(A) Odourless
(B) Non-toxic
(C) Transparent
(D) All of these
Show Answer
Answer: (D) All of these
Q5. The low voltage
porcelain is mainly used for
(A) Switch block
(B) Insulating tubes
(C) Lamp sockets
(D) All of these
Show Answer
Answer: (D) All of these
Q6. The compound of Portland
cement which reacts immediately with water and also sets first is
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Show Answer
Answer: (C) Tri-calcium aluminate
Q7. Duco paints are
(A) Plastic paints
(B) Cellulose paints
(C) Emulsion paints
(D) Oil paints
Show Answer
Answer: (D) Oil paints
Q8. A rock contains only one
mineral. It is called
(A) Homogeneous
(B) Non-homogeneous
(C) Monomineralic
(D) Polymineralic
Show Answer
Answer: (C) Monomineralic
Q9. The initial setting time
of hydraulic lime, is
(A) 30 minutes
(B) 60 minutes
(C) 90 minutes
(D) 120 minutes
Show Answer
Answer: (D) 120 minutes
Q10. In arches, stratified
stones are placed so that their planes are
(A) Parallel
(B) Perpendicular
(C) Radial
(D) None of these
Show Answer
Answer: (C) Radial
Q11. Pick up the correct
statement from the following:
(A) Melamine is obtained from calcium carbide
(B) Formaldehyde is prepared synthetically from methane
(C) The melamine when reacted with formaldehyde forms the melamine-formaldehyde
resin
(D) All the above
Show Answer
Answer: (D) All the above
Q12. Pegmatite is a/an
(A) Intrusive igneous rock
(B) Extrusive igneous rock
(C) Sedimentary rock
(D) Metamorphic rock
Show Answer
Answer: (A) Intrusive igneous rock
Q13. PVC stands for
(A) Plastic very compact
(B) Polythene vinyl chloride
(C) Polythene vinyl carbon
(D) Polythene vanadium carbide
Show Answer
Answer: (B) Polythene vinyl chloride
Q14. Steel contains carbon
approximately
(A) 1.50% to 5.6%
(B) 0.05% to 1.75%
(C) 0.25 %
(D) None to these
Show Answer
Answer: (B) 0.05% to 1.75%
Q15. The fire clay contains
pure
(A) Lime
(B) Oxide of iron
(C) Hydrated aluminium silicate
(D) Magnesium
Show Answer
Answer: (C) Hydrated aluminium silicate
Building
Materials Objective Questions and Answers Set 31
Show Answer
Answer: (A) Chalk
Q7. Forge pig may be
converted to wrought iron by
(A) Rolling
(B) Pudding
(C) Shingling
(D) Refining
Show Answer
Answer: (B) Pudding
Q8. The portion of the brick
cut across its width and having its length equal to that of a full brick, is
known as
(A) Closer
(B) Queen closer
(C) King closer
(D) Prince closer
Show Answer
Answer: (B) Queen closer
Q9. The main ingredient of a
good quality brick earth, is
(A) Magnesia
(B) Lime
(C) Silica
(D) Alumina
Show Answer
Answer: (D) Alumina
Q10. Pick up the correct
statement from the following:
(A) Bull’s trench kiln a trench excavated in ground
(B) Hoffman’s kiln is constructed over ground
(C) Tunnel Kiln is constructed as a tunnel
(D) All the above
Show Answer
Answer: (D) All the above
Q11. Slacking of lime is
affected by
(A) Keeping it exposed to air
(B) Immersing the lime in water
(C) Crushing the lime lumps
(D) None of these
Show Answer
Answer: (B) Immersing the lime in water
Q12. The softest rock is
(A) Marble
(B) Diamond
(C) Talc
(D) Quartz
Show Answer
Answer: (C) Talc
Q13. Forge pig may be
converted to wrought iron by
(A) Rolling
(B) Pudding
(C) Shingling
(D) Refining
Show Answer
Answer: (B) Pudding
Q14. Dorry’s testing machine
is used for
(A) Crushing test of stone
(B) Hardness test of stone
(C) Impact test of stone
(D) Water absorption test
Show Answer
Answer: (B) Hardness test of stone
Q15. The minimum percentage
of silica, alumina and ferric oxide in lime for white washing, is
(A) 20
(B) 15
(C) 5
(D) 0
Show Answer
Answer: (D) 0