Building Materials MCQ 1 - 272
Question No. 01
Which of the following has more fire resisting characteristics?
(A) Marble
(B) Lime stone
(C) Compact sand stone
(D) Granite
Answer: Option C
Question No. 02
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
Answer: Option A
Question No. 03
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
Answer: Option C
Question No. 04
Due to attack of dry rot, the timber
(A) Cracks
(B) Shrinks
(C) Reduces to powder
(D) None of these
Answer: Option C
Question No. 05
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
Answer: Option D
Pick up the correct statement from the following:
(A) In stone arches, the stones are placed with their natural beds radial
(B) In cornices, the stones are placed with their natural beds as vertical
(C) In stone walls, the stones are placed with their natural beds as horizontal
(D) All the above
Answer: Option D
Question No. 07
The constituent of cement which is responsible for all the undesirable properties of cement is
(A) Di-calcium silicate
(B) Tri-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Answer: Option C
Question No. 08
Inner part of a timber log surrounding the pitch, is called
(A) Sapwood
(B) Cambium layer
(C) Heart wood
(D) None to these
Answer: Option C
Question No. 09
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
Answer: Option B
Question No. 10
If 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
Answer: Option D
Question No. 11
The basic purpose of a retarder in concrete is
(A) To increase 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
Answer: Option A
Question No. 12
Clay and silt content in a good brick earth must be at least
(A) 50 %
(B) 40 %
(C) 30 %
(D) 25 %
Answer: Option A
Question No. 13
Which of the following is the purest form of iron?
(A) Cast iron
(B) Wrought iron
(C) Mild steel
(D) High carbon steel
Answer: Option B
Question No. 14
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
Answer: Option B
Question No. 15
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
Answer: Option A
Question No. 16
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 Answer: Option C
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
Answer: Option D
Question No. 18
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 Answer: Option C
Question No. 19
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
Answer: Option D
Question No. 20
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
Answer: Option A
Question No. 21
During pudding
(A) Molten metal is kept clear of the fuel
(B) Carbon is converted into carbonic acid gas
(C) Silicon forms a slag
(D) All the above
Answer: Option D
Question No. 22
Early attainment of strength in rapid hardening cement is mainly due to
(A) Gypsum
(B) Finer grinding
(C) Tri-calcium silicate
(D) Tri-calcium aluminate
Answer: Option B
Question No. 23
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
Answer: Option D
Question No. 24
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
Answer: Option B
Question No. 25
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
Answer: Option D
Question No. 26
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
Answer: Option B
Question No. 27
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
Answer: Option D
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
Answer: Option B
Question No. 29
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
Answer: Option D
Question No. 30
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
Answer: Option C
Question No. 31
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
Answer: Option B
Question No. 32
Jumper is a tool used for
(A) Testing of stones
(B) Quarrying of stones
(C) Dressing of stones
(D) None of the above
Answer: Option B
Question No. 33
Pick up the volcanic rock from the following:
(A) Granite
(B) Dolerite
(C) Basalt
(D) All the above
Answer: Option C
Question No. 34
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
Answer: Option B
Question No. 35
Strength of cement concrete primarily depends upon
(A) Quality of water
(B) Quantity of aggregate
(C) Quantity of cement
(D) Water-cement ratio
Answer: Option D
Question No. 36
The main function of alumina in brick earth is
(A) To impart plasticity
(B) To make the brick durable
(C) To prevent shrinkage
(D) To make the brick impermeable
Answer: Option A
Question No. 37
Cast iron
(A) Is obtained by purifying pig iron
(B) Is manufactured in required shapes
(C) May contain 2 to 5 per cent of carbon with other impurities
(D) All the above
Answer: Option D
Question No. 38
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
Answer: Option B
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
Answer: Option D
Question No. 40
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
Answer: Option B
Question No. 41
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
Answer: Option C
Question No. 42
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
Answer: Option A
Question No. 43
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
Answer: Option D
Question No. 44
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
Answer: Option A
Question No. 45
The most commonly used retarder in cement is
(A) Gypsum
(B) Calcium chloride
(C) Calcium carbonate
(D) None of the above
Answer: Option A
Question No. 46
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
Answer: Option B
Question No. 47
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 Answer: Option A
Question No. 48
Non acid- resistant asbestos is:
(A) Tremolite asbestos
(B) Chrysotile asbestos
(C) Amosite asbestos
(D) None of these
Answer: Option B
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 Answer: Option D
Question No. 50
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
Answer: Option A
Question No. 51
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
Answer: Option C
Question No. 52
Blister steel
(A) Is obtained by cementation process
(B) Is full of fissures and cavities
(C) Can be easily welded
(D) All the above
Answer: Option D
Question No. 53
Gypsum is a
(A) Mechanically formed sedimentary rock
(B) Igneous rock
(C) Chemically precipitated sedimentary rock
(D) Metamorphic rock
Answer: Option C
Question No. 54
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
Answer:
Option B
Question No. 55
Which of
the following timbers is suitable for making sports goods?
(A)
Mulberry
(B)
Mahogany
(C) Sal
(D)
Deodar
Answer:
Option A
Question No. 56
Which of
the following is a rock?
(A)
Quartz
(B) Mica
(C)
Gypsum
(D) None
of the above
Answer:
Option C
Question No. 57
The
tendency of a stone is, to split along:
(A)
Texture
(B)
Fracture
(C)
Cleavage
(D)
Structure
Answer:
Option C
Question No. 58
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
Answer:
Option A
Question No. 59
Cast
iron contains carbon approximately
(A) 1.5%
to 5.5%
(B)
0.05% to 1.75%
(C)
0.250 %
(D) None
to these
Answer:
Option A
Question No. 60
Which of
the following trees yields hard wood?
(A)
Deodar
(B) Chir
(C)
Shishum
(D) Pine
Answer:
Option C
Soundness
of cement is tested by
(A)
Vicat's apparatus
(B)
Le-chatelier apparatus
(C)
Compressive strength testing apparatus
(D) None
of these
Answer:
Option B
Question No. 62
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
Answer:
Option D
Question No. 63
Bitumen
may be dissolved in
(A)
Carbondioxide
(B)
Water
(C)
Sodium chloride
(D)
Carbon disulphide
Answer:
Option D
Question No. 64
Which of
the following ingredients of the brick earth enables the brick to retain its
shape?
(A)
Alumina
(B)
Silica
(C) Iron
(D)
Magnesia
Answer:
Option B
Question No. 65
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 Answer: Option C
Question No. 66
Number
of bricks required for one cubic metre of brick masonry is
(A) 400
(B) 450
(C) 500
Answer:
Option C
Question No. 67
Which
one of the following is used for preparing porcelain?
(A) Clay
(B)
Feldspar
(C)
Quartz
(D) All
of these
Answer:
Option D
Question No. 68
The main
ingredients of Portland cement are
(A) Lime
and silica
(B) Lime
and alumina
(C)
Silica and alumina
(D) Lime
and iron
Answer:
Option A
Question No. 69
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
Answer:
Option D
Question No. 70
After
storage, the strength of cement
(A)
Decreases
(B)
Increases
(C)
Remains same
(D) May
increase or decrease
Answer:
Option A
Question No. 71
A bull
nose brick is not used for
(A)
Rounding off sharp corners
(B)
Pillars
(C)
Decoration purpose
(D)
Arches
Answer:
Option D
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
Answer:
Option B
Question No. 73
Chlorite,
a green colour mineral is mainly derived from the decomposition of
(A)
Augite
(B)
Biotite
(C)
Hornblende
(D) All
of these
Answer:
Option A
Question No. 74
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
Answer:
Option C
Question No. 75
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
Answer:
Option D
Question No. 76
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 Answer: Option C
Question No. 77
The
percentage of alumina and silica in good fire clay vary respectively is
(A) 25,
75
(B) 30,
70
(C) 35,
65
Question No. 78
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
Answer:
Option A
Question No. 79
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
Answer:
Option B
Question No. 80
Which of
the following sedimentary rocks changes into quartzite by metamorphic action?
(A) Sand
stone
(B) Lime
stone
(C)
Shale
(D)
Gypsum
Answer:
Option A
Question No. 81
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
Answer:
Option D
Question No. 82
The
stone suitable for rubble masonry should be.
(A) Hard
(B)
Tough
(C)
Heavy
(D)
Light
Answer:
Option A
Question No. 83
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
Answer:
Option D
Question No. 84
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
Answer:
Option B
Question No. 85
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
Answer:
Option C
Question No. 86
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°
Answer:
Option D
Question No. 87
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
Answer:
Option C
Question No. 88
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
Question No. 89
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
Answer:
Option D
Question No. 90
Quick
lime is
(A)
Calcium carbonate
(B)
Calcium oxide
(C)
Calcium hydroxide
(D) None
of the above
Answer:
Option B
Question No. 91
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
Answer:
Option D
Question No. 92
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
Answer:
Option B
Question No. 93
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
Answer:
Option A
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
Answer: Option C
Question No. 95
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
Answer:
Option D
Question No. 96
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)
Answer:
Option D
Question No. 97
In a
mortar, the binding material is
(A)
Cement
(B) Sand
(C)
Surkhi
(D)
Cinder
Answer:
Option A
Question No. 98
The
vehicle used in case of enamel paints is usually
(A)
Linseed oil
(B)
Water
(C)
Varnish
(D) None
of the above
Answer:
Option C
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
Answer:
Option D
Question No. 100
The
slenderness ratio for masonry walls should not be more than
(A) 10
(B) 20
(C) 30
(D) 40
Answer:
Option B
Question No. 101
Sand
stone is
(A)
Sedimentary rock
(B)
Metamorphic rock
(C)
Igneous rock
(D)
Volcanic rock
Answer:
Option A
Question No. 102
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)
Answer:
Option B
Question No. 103
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%
Answer:
Option A
A good
building stone should not absorb water more than
(A) 5 %
(B) 10 %
(C) 15 %
(D) 20 %
Answer:
Option A
Question No. 105
Good
quality stones must
(A) Be
durable
(B) Be
free from clay
(C)
Resist action of acids
(D) All
the above
Answer:
Option D
Question No. 106
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
Answer:
Option C
Question No. 107
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
Answer:
Option D
Question No. 108
The age
of a tree can be known by examining
(A)
Cambium layer
(B)
Annular rings
(C)
Medullary rays
(D)
Heart wood
Answer:
Option B
Question No. 109
Pick up
the correct statement from the following:
- In basic Bessemer process, the steel heats the converter
- In open -hearth process, the furnace heats the steel
Answer:
Option D
Question No. 110
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 %
Answer:
Option C
Question No. 111
Resins
are
(A) Not
soluble in water
(B)
Soluble in spirit
(C) Used
in varnishes
(D) Left
behind on evaporation of oil
Answer:
Option C
Question No. 112
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)
Answer:
Option C
Question No. 113
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
Answer:
Option D
Question No. 114
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
Answer: Option D
Question No. 115
Shingle is
(A)
Decomposed laterite
(B)
Crushed granite
(C)
Water bound pebbles
(D) Air
weathered rock
Answer:
Option A
Question No. 116
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)
Answer:
Option A
Question No. 117
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
Answer:
Option D
Question No. 118
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
Answer:
Option A
Question No. 119
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
Answer:
Option D
Question No. 120
Expansion
Joints in masonry walls are provided in wall lengths usater than
(A) 10 m
(B) 20 m
(C) 30 m
(D) 40 m
Answer:
Option D
Question No. 121
Cast
steel is manufactured by
(A)
Cementation process
(B)
Crucible process
(C)
Bessemer process
(D) Open
hearth process
Answer:
Option B
Question No. 122
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
Answer:
Option D
Question No. 123
The
foliated structure is very common in
(A)
Sedimentary rocks
(B)
Igneous rocks
(C)
Metamorphic rocks
(D) None
of these
Answer:
Option C
Question No. 124
Cross
cut saw is used for
(A)
Cutting soft stones
(B)
Cutting hard stones
(C)
Cutting large blocks of stones
(D)
Dressing stones
Answer:
Option B
Question No. 125
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
Answer:
Option D
Question No. 126
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 %
Answer:
Option B
Question No. 127
The
minimum compressive strength of 2nd class bricks should be
(A) 75
kg/cm2
(B) 90
kg/cm2
(C) 100
kg/cm 2
(D) 120
kg/cm2
Answer:
Option A
Question No. 128
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
Answer:
Option C
Question No. 129
Bulking
of sand is caused due to
(A)
Surface moisture
(B) Air
voids
(C)
Viscosity
(D) Clay
contents
Answer:
Option A
Question No. 130
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
Answer:
Option C
Question No. 131
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
Answer:
Option D
Question No. 132
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
Answer:
Option C
Question No. 133
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
Answer:
Option A
Question No. 134
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
Answer:
Option A
Question No. 135
The
weight of 1 m3 of brick earth, is about
(A) 1200
kg
(B) 1500 kg
(C) 1800 kg
(D)
2000 kg Answer: Option C
Question No. 136
Which of
the following is a mineral?
(A)
Basalt
(B)
Granite
(C)
Quartz
(D)
Syenite
Answer:
Option C
Question No. 137
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
Answer:
Option D
Question No. 138
Crushing
strength of a good building stone should be more than
(A) 50
MPa
(B) 100
MPa
(C) 150
MPa
(D) 200
MPa
Answer:
Option B
Question No. 139
Generally
wooden moulds are made from
(A) Ply
wood
(B)
Shishum wood
(C)
Deodar wood
(D) Teak
wood
Answer:
Option B
Question No. 140
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
Answer:
Option C
Question No. 141
Bitumen
is generally obtained from
(A)
Organic material
(B)
Synthetic material
(C) Petroleum
product
(D) Coal
Answer:
Option C
Question No. 142
The main
constituent which imparts hydraulicity to hydraulic lime is
(A)
Calcium oxide
(B)
Silica
(C) Clay
(D)
Water
Answer:
Option C
Question No. 143
Calcination
of iron ores is done
(A) To
remove moisture
(B) To
remove carbonic acid
(C) By
roasting in heaps
(D) All
the above
Answer:
Option D
Question No. 144
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
Answer:
Option B
Question No. 145
The
commonly used thinner in oil paints, is
(A)
Naphtha
(B)
Turpentine
(C) Both
(a) and (b)
(D) None
the these
Answer:
Option C
Question No. 146
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
Answer:
Option C
Question No. 147
The
pigment used in paints for corrosive resistance, is
(A)
White lead
(B)
Ferrous oxide
(C) Zinc
white
(D) Red
lead
Answer:
Option D
Question No. 148
Slate is
formed by metamorphic action on
(A)
Shale
(B) Lime
stone
(C) Sand
stone
(D)
Granite
Answer:
Option A
Question No. 149
Sea sand
used in structures causes
(A)
Dampness
(B)
Efflorescence
(C)
Disintegration
(D) All
of these
Answer:
Option D
Question No. 150
The
trunk of tree left after cutting all the branches is known as
(A) Log
(B)
Batten
(C)
Plank
(D)
Baulk
Answer:
Option A
Question No. 151
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
Answer:
Option A
Question No. 152
Pug mill
is used for
(A)
Preparation of clay
(B)
Moulding of clay
(C)
Drying of bricks
(D)
Burning of bricks
Answer:
Option A
Question No. 153
Pick up
the synthetic resin from the following:
(A) Urea
resin
(B)
Phenolic resin
(C)
Resorcinol resin
(D) All of
these
Answer:
Option D
Question No. 154
Addition
of pozzolana to ordinary Portland cement increases
(A)
Bleeding
(B)
Shrinkage
(C)
Permeability
(D) Heat
of hydration
Answer:
Option B
Question No. 155
Plastics
are compounds of carbon with element
(A)
Hydrogen
(B)
Nitrogen
(C)
Oxygen
(D) All
of these
Answer:
Option D
Question No. 156
Paints
with white lead base are suitable for painting of
(A) Wood
work
(B) Iron
work
(C) Both
wood work and iron work
(D) None
of the above
Answer:
Option A
Question No. 157
For a
good building stone, its specific gravity should the greater than
(A) 1.5
(B) 1.7
(C) 2.2
(D) 2.7
Answer:
Option D
Question No. 158
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)
Answer:
Option D
Question No. 159
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
Answer:
Option B
Question No. 160
The
practical limit of moisture content achieved in air drying of timber is
(A) 5 %
(B) 15 %
(C) 25 %
(D) 35 %
Answer:
Option B
Question No. 161
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
Answer:
Option D
Question No. 162
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)
Answer:
Option B
Question No. 163
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
Answer:
Option D
Question No. 164
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
Answer:
Option C
Question No. 165
To give
a brilliant finish, the type of varnish used, is
(A)
Water varnish
(B)
Spirit varnish
(C)
Turpentine varnish
(D) Oil
varnish
Answer:
Option B
Question No. 166
Which of
the following should be used for hearting of thicker walls?
(A)
Headers
(B)
Stretchers
(C)
Brick bats
(D)
Queen closer
Answer:
Option A
Question No. 167
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
Answer:
Option D
Question No. 168
A heavy
stone is suitable for
(A)
Arches
(B)
Rubble masonry
(C)
Roads
(D)
Retaining walls
Answer:
Option D
Question No. 169
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
Answer:
Option D
Question No. 170
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 %
Answer:
Option B
Question No. 171
Pig iron
made from haematite ores free from sulphur, phosphorus and copper, is known as
(A)
Bessemer pig
(B) Grey
or foundry pig
(C)
White or forge pig
(D)
Mottled pig
Answer:
Option A
Question No. 172
Le-Chatelier's
device is used for determining the
(A)
Setting time of cement
(B)
Soundness of cement
(C)
Tensile strength of cement
(D)
Compressive strength of cement
Answer:
Option B
Question No. 173
Red
short iron cracks when bent due to the presence of
(E) Sulphur
(F) Carbon
(G) Phosphorus
(H)
Silicon
Answer:
Option A
Question No. 174
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
Answer:
Option A
Question No. 175
The
method of addition polymerization is used for obtaining:
(A)
Polystyrene
(B)
Polypropylene
(C)
Polyvinylchloride
(D) All
of these
Answer:
Option D
Question No. 176
Which of
the following metamorphic rocks has the most weather resisting characteristics?
(A)
Marble
(B)
Quartzite
(C)
Slate
(D) Lime
stone
Answer:
Option B
Question No. 177
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
Answer:
Option B
Question No. 178
Seasoning
of timber is done for
(A)
Increasing moisture content
(B)
Decreasing moisture content
(C)
Increasing strength of timber
(D) None
to these
Answer:
Option B
Question No. 179
The
steel used for the manufacture of rails, is
(A)
Bessemer steel
(B) Mild
steel
(C) Cast
steel
(D)
Stainless steel
Answer:
Option A
Question No. 180
Durability
of building stone is affected by its
(A)
Chemical composition
(B)
Texture
(C)
Resistance to atmosphere
(D) All
the above
Answer:
Option D
Question No. 181
Pick up
the most favourable condition for the rapid growth of fungus for dry rot from
the following:
(A)
Absence of sun light
(B)
Dampness
(C)
Presence of sap
(D) All
the above
Answer:
Option D
Question No. 182
Crushing
strength of a first class brick should not be less than
(A) 3.5
N/mm²
(B) 7.0
N/mm²
(C) 10.5
N/mm²
(D) 14.0
N/mm²
Answer:
Option C
Question No. 183
Pick up
the correct statement from the following:
(A) Rust
is due to formation of oxides
(B) Cast
iron oxidises less
(C)
Steel oxidises most
(D) All
the above
Answer:
Option D
Question No. 184
The main
constituent of cement which is responsible for initial setting of cement is
(A)
Di-calcium silicate
(B)
Tri-calcium silicate
(E) Tri-calcium
aluminate
(F)
All of the above
Answer:
Option C
Question No. 185
Pick up
the correct statement from the following:
(A) The
low voltage porcelain is prepared by wet process
(B) The
high voltage porcelain is prepared by dry process
(C) The
low voltage porcelain is prepared by dry process
(D) None
of the above
Answer:
Option C
Question No. 186
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
Answer:
Option B
Question No. 187
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
Answer:
Option C
Question No. 188
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
Answer:
Option C
Question No. 189
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
Answer:
Option D
Question No. 190
Glazing
is used to make earthenware
(A) Hard
(B) Soft
(C)
Porous
(D)
Impervious
Answer:
Option D
Question No. 191
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
Answer:
Option A
Question No. 192
Which of
the following gradients exerts maximum influence on properties of steel?
(A) Iron
(B)
Carbon
(C)
Manganese
(D)
Sulphur
Answer:
Option B
Question No. 193
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
Answer:
Option A
Question No. 194
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
Answer:
Option B
Question No. 195
Which
one of the following is acid resistant asbestos?
(A)
Actinolite asbestos
(B)
Amosite asbestos
(C)
Anthophylite asbestos
(D)
All the above
Answer:
Option D
Question No. 196
The
slump recommended for mass concrete is about
(A) 25
mm to 50 mm
(B) 50
mm to 100 mm
(C) 100
mm to 125 mm
(D) 125
mm to 150 mm
Answer:
Option A
Question No. 197
For
preparing porcelains, the clay should be
(A)
Sufficiently pure
(B) Of
high degree of tenacity
(C) Of
good plasticity
(D) All
the above
Answer:
Option D
Question No. 198
For
melting one tonne of cast iron
(A) 700
m3 air is required
(B) 20
kg limestone is required
(C) One
quintal coke is required
(D) All
the above
Answer:
Option D
Question No. 199
Pick up
the correct statement regarding low heat cement from the following:
(A) It
possesses less compressive strength
(B) Its
initial setting time is about one hour
(C) Its
final setting time is about 10 hours
(D) All
the above
Answer:
Option D
Question No. 200
Quick
lime (or caustic lime)
(A) Is
obtained by the calcination of pure lime stone
(B) Has
great affinity to moisture
(C) Is
amorphous
(D) All
the above
Answer:
Option D
Question No. 201
The
commonly used lime in white washing, is
(A) White
lime
(B) Fat lime
(C) Hydraulic
lime
(D) Quick
lime
Answer:
Option B
Question No. 202
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
Answer:
Option C
Question No. 203
Plywood
is made from
(A)
Common timber
(B)
Bamboo fibre
(C) Teak
wood only
(D)
Asbestos sheets
Answer:
Option C
Question No. 204
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 %
Answer: Option
C
Question No. 205
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
Answer:
Option D
Question No. 206
The
hardest rock is
(A)
Marble
(B)
Diamond
(C) Talc
(D)
Quartz
Answer: Option B
Question No. 207
Wrought
iron is used for
(A)
Structural works in beams
(B)
Small sized water pipes
(C)
Columns and struts
(D) None
to these
Answer:
Option B
Question No. 208
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
Answer:
Option D
Question No. 209
The
process of mixing clay, water and other ingredients to make brick is known as
(A)
Kneading
(B)
Moulding
(C)
Pugging
(D)
Drying
Answer:
Option A
Question No. 210
The type
of steel used for precision levelling staff, is
(A)
Titanium steel
(B)
Carbon steel
(C)
Invar
(D)
Stainless steel
Answer:
Option C
Question No. 211
Formula
for quick lime, is
(A) CaCO3
(B)
Ca(OH)2
(C) CO3CO2
(D) None
to these
Answer:
Option A
Question No. 212
The process of decarbonising the pig iron completely
and then adding properpercentage of carbon for manufacturing steel, is called
(A) Cementation
process
(B) Crucible
process
(C) Bessemer
process
(D) Open
hearth process
Answer:
Option A
Question No. 213
The maximum quantity of calcium chloride used as an accelerator in
cement in percentage by weight of cement is
(A) 1
(B) 2
(C) 3
(D) 4
Answer:
Option B
Question No. 214
Which
one of the following polymers is obtained from condensation polymerization?
(A)
Phenol formaldehyde
(B)
Carbamide
(C)
Melamine-formaldehyde
(D) All
of these
Answer:
Option D
Question No. 215
The
portion of a brick cut to form angles other than right angles in plan, is known
as
(A) Queen
closer
(B) King
closer
(C)
Closer
(D)
Squint brick
Answer:
Option D
Question No. 216
The
moisture content in a well seasoned timber is
(A) 4 %
to 6 %
(B) 10 %
to 12 %
(C) 15 %
to 20 %
(D) 100
%
Answer:
Option B
Question No. 217
The
cement becomes unsound by the presence of excess
(A)
Sulphur
(B)
Magnesia
(C) Lime
(D) All
of these
Answer:
Option D
Question No. 218
For one
cubic metre of brick masonry, number of bricks required, is
(A) 400
(B) 425
(C) 450
(D) 500
Answer:
Option D
Question No. 219
Rapid
hardening cement contains
(A)
Tri-calcium silicate
(B)
Tri-calcium aluminate
(C)
Tetra-calcium alumino-ferrite
(D)
Di-calcium silicate
Answer:
Option A
Question No. 220
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
Answer:
Option B
Question No. 221
Which of
the following timbers is suitable for making sports goods?
(A)
Mulberry
(B)
Mahogany
(C) Sal
(D)
Deodar
Answer:
Option A
Question No. 222
The
stones obtained by blasting are used as
(A)
Ballast in railways
(B)
Aggregates for concrete
(C) Road
metal
(D) All
the above
Answer:
Option D
Question No. 223
Pick up
the correct statement from the following:
(A) Acid test is done to
find out the weathering quality of stones
(B) Attrition test is done to find out the rate of wear of stones which
are used in road construction
(C)
Crushing test is done to find out the compressive strength of the stone
(D) All
the above
Answer:
Option D
Question No. 224
Mastic
asphalt is
(A)
Water proof
(B) Fire
proof
(C)
Elastic
(D) All
the above
Answer:
Option D
Question No. 225
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
Answer:
Option C
Question No. 226
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
Answer:
Option B
Question No. 227
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
Answer:
Option D
Question No. 228
For
obtaining vinyl chloride acetate, the method used, is
(A)
Addition polymerization
(B)
Condensation polymerization
(C)
Co-polymerization
(D) None
of these
Answer:
Option C
Question No. 229
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/mm 2
(D) 15
kg/mm2
Answer:
Option B
Question No. 230
The
normal consistency of ordinary Portland cement is about
(A) 10 %
(B) 20 %
(C) 30 %
(D) 40 %
Answer:
Option C
Question No. 231
Lacquer
is
(A) Oil
paint
(B)
Distemper
(C)
Spirit varnish
(D) None
to these
Answer:
Option C
Question No. 232
Plaster
of Paris is obtained by calcining
(A)
Bauxite
(B) Gypsum
(C) Lime
stone
(D) None
of these
Answer:
Option B
Question No. 233
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
Answer:
Option D
Question No. 234
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
Answer:
Option A
Question No. 235
The
coefficient of hardness of stones used in road work should be greater than
(A) 10
(B) 12
(C) 15
(D) 17
Answer:
Option D
Question No. 236
Manganese
steels
(A) Are
non-magnetic
(B)
Possess high electrical resistance
(C)
Possess low coefficient of expansion
(D) All
the above
Answer:
Option D
Question No. 237
The most
commonly used base for timber painting, is
(A) Red
lead
(B) Zinc
white
(C)
White lead
(D)
Titanium white
Answer:
Option C
Question No. 238
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
Answer:
Option D
Question No. 239
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
Answer:
Option D
Question No. 240
Quartzite
is a
(A)
Metamorphic rock
(B)
Argillaceous rock
(C)
Calcareous rock
(D)
Siliceous rock
Answer:
Option D
Question No. 241
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
Answer:
Option D
Question No. 242
Polymerization
helps to improve the property of
(A)
Strength
(B)
Rigidity
(C)
Elasticity
(D) All
of these
Answer:
Option D
Question No. 243
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
Answer:
Option D
Question No. 244
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
Answer:
Option D
Question No. 245
Pick up
the plutonic rock from the following:
(A)
Granite
(B)
Dolerite
(C)
Basalt
(I)
All the above
Answer:
Option A
Question No. 246
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
Answer:
Option C
Question No. 247
Cement
is said to be of good quality if
(A) Its
colour 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
Answer:
Option D
Question No. 248
The
silica is used for preparing
(A)
Silica bricks
(B) Coke
oven
(C)
Lining for glass furnaces
(D) All
of these
Answer:
Option D
Question No. 249
The
timber having maximum resistance against white ants, is obtained from
(A) Chir
(B)
Shishum
(C) Sal
(D) Teak
Answer:
Option B
Question No. 250
Duco is
one of the patent forms of
(A)
Emulsion paints
(B)
Plastic paints
(C)
Bituminous paints
(D)
Cellulose paints
Answer:
Option D
Question No. 251
Quartzite,
a metamorphic stone is
(A) Hard
(B)
Brittle
(C)
Crystalline
(D) All
the above
Answer:
Option D
Question No. 252
If water
required for 1 bag of cement is 30 litres, the water cement ratio is:
(A) 0.40
(B) 0.50
(C) 0.60
(D) None
of these
Answer:
Option C
Question No. 253
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
Answer:
Option D
Question No. 254
The
percentage of water for normal consistency, is
(A) 5%
to 15%
(B) 10%
to 25%
(C) 15%
to 25%
(D) 20%
to 30%
Answer:
Option C
Question No. 255
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
Answer:
Option D
Question No. 256
In a
rock calcium carbonate predominates. State whether it is:
(A)
Siliceous rock
(G) Argillaceous
rock
(H) Calcareous
rock
(I)
None of these
Answer:
Option C
Question No. 257
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
Answer:
Option B
Question No. 258
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
Answer:
Option C
Question No. 259
The
steel used in R.C.C. work is
(A)
Stainless steel
(B) Mild
steel
(C) High
carbon steel
(D)
Wrought iron
Answer:
Option B
Question No. 260
Pick up
the rock which is not a sedimentary rock from the following:
(A)
Gravel
(B) Sand
stone
(C)
Gypsum
(D)
Dolerite
Answer:
Option D
Question No. 261
Acrylic
is the name of
(A)
Cellulose resin
(B)
Alkyd resin
(C)
Methyl methacrylate
(D)
Cumarone-indene
Answer:
Option C
Question No. 262
The PVC
doors and windows are preferred as they are
(A) Rust
proof
(B) Rot
proof
(C)
Water proof
(D) All
of these
Answer:
Option D
Question No. 263
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
Answer:
Option B
Question No. 264
Upto a
maximum of 72% of iron, is available in
(A)
Magnetite
(B)
Limonite
(C)
Siderite
(D) Iron
pyrites
Answer:
Option A
Question No. 265
The
melting point of silica is:
(A)
1570°C
(B)
1630°C
(C)
1730°C
(D)
1850°C
Answer:
Option C
Question No. 266
Lime
stones are generally known as
(A)
Aqueous rocks
(B)
Sedimentary rocks
(C)
Stratified rocks
(D) All
the above
Answer:
Option D
Question No. 267
Stones
used for rubble masonry must be
(A) Soft
(B) Hard
(C)
Light
(D)Heavy
Answer:
Option B
Question No. 268
The
property by virtue of which lime sets under water, is known as
(A)
Slacking
(B)
Setting
(C)
Hydraulicity
(D)
Calcining
Answer:
Option C
Question No. 269
Porcelain
is used as:
(A)
Sanitary wares
(B)
Electric insulators
(C)
Storage vessels
(D)
Reactor chambers
Answer:
Option D
Question No. 270
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
Answer:
Option D
Question No. 271
Second
class bricks
(A) Are
of dark brown colour
(B)
Produce a metallic sound when struck
(C) Are
well burnt
(D) Are
under burnt
Answer:
Option B
Question No. 272
Wrought
iron contains carbon upto
(A) 0.25
%
(B) 1.0
%
(C) 1.5
%
(D) 2 %
Answer:
Option A
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