Q.1

Bitumen felt is used for

  • water proofing
  • damp proofing
  • both (a) and (b)
  • neither (a) nor (b).
Q.2

To retard the initial setting time of cement, the compound responsible, is

  • Tricalcium silicate
  • Gypsum
  • Di-calcium silicate
  • Tri calcium aluminate.
Q.3

Pick up the correct statement from the following:

  • The lime in excess makes the cement unsound and causes the cement to expand and disintegrate
  • The silica in excess makes the cement stronger but its setting time also increases
  • The excess amount of alumina weakens the cement
  • The addition of gypsum increases the initial setting time of cement
  • All the above.
Q.4

Pick up the rock which is not a sedimentary rock from the following:

  • gravel
  • sand stone
  • gypsum
  • dolerite
  • lignite.
Q.5

Distemper is

  • a paint consisting of powdered chalk, pigments, and water
  • a water proofing agent
  • a paint consisting of coloured cement and water
  • a drying agent.
Q.6

During smelting process, the combination of fuel in the furnace

  • forms carbon dioxide
  • carbon dioxide with carbon forms carbon mono-oxide
  • carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2
  • all the above.
Q.7

Magnese steels

  • are non-magnetic
  • possess high electrical resistance
  • possess low coefficient of expansion
  • are used for the manufacture of rails
  • all the above.
Q.8

Plywood is normally available

  • 1 mm thick
  • 2 mm thick
  • 2 to 3 mm thick
  • 3 mm to 4 mm thick.
Q.9

Pick up the correct statement from the following:

  • The free quartz suddenly expands at a temperature lower than 600°C
  • The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2
  • The sand stone with silicates resist a fire in a better way
  • The argillaceous stone though poor in strength can resist fire quite weak
  • All the above.
Q.10

Basalt is

  • sedimentary rock
  • metamorphic rock
  • extrusive igneous rock
  • intrusive igneous rock.
Q.11

Pick up the correct statement from the following:

  • Styrene resin is produced from ethylene which is made from petroleum
  • Styrene resin is light in weight
  • Styrene resin transmits ultraviolet waves of light
  • Styrene resin is used to manufacture utensils which are unaffected by chemicals
  • All the above.
Q.12

Red short iron cracks when bent due to the presence of

  • sulphur
  • carbon
  • phosphorus
  • silicon.
Q.13

Which one of the following is used for preparing porcelain

  • clay
  • feldspar
  • quartz
  • minerals
  • All of these.
Q.14

The commonly used base for iron and steel work, is

  • red lead
  • zinc white
  • white lead
  • titanium white.
Q.15

Spirit varnish generally consists of

  • oil, wax and resin
  • alcohol, wax and turpentine
  • pigment and synthetic resin
  • spirit and shellac
  • none of these.
Q.16

The size of mould for bricks, is generally kept

  • a little large to specified size
  • a little small to specified size
  • equal to specified size
  • 10% larger than specified size
  • 20% larger than specified size.
Q.17

Pig iron obtained from the furnance which is properly provided with fuel at a very high temperature, is called

  • Bessemer pig
  • Grey or foundry pig
  • White or forge pig
  • Mottled pig
  • None of the above.
Q.18

Percentage content of silica in window glass, is

  • 40 to 45
  • 50 to 55
  • 60 to 65
  • 70 to 75.
Q.19

The coefficient of hardness of stones used in road work should be greater than

  • 10
  • 12
  • 15
  • 17.
Q.20

The harmonious mixing of the clay ingredients, is known as

  • weathering
  • blending
  • tempering
  • None of these.
Q.21

Priming consists of

  • one part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
  • 8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil
  • one part of white lead, 8 parts of chalk and one part of linseed oil
  • none to these.
Q.22

According to ISI, bitumen is classified into

  • 2 grades
  • 4 grades
  • 6 grades
  • 8 grades.
  • 10 grades.
Q.23

Dorry's testing machine is used for

  • crushing test of stone
  • hardness test of stone
  • impact test of stone
  • water absorption test.
Q.24

A rock contains only one mineral. It is called

  • homogeneous
  • non-homogeneous
  • monomineralic
  • polymineralic.
Q.25

For a good building stone, its specific gravity should the greater than

  • 1.5
  • 1.7
  • 2.2
  • 2.7.
Q.26

Oil varnish generally consists of

  • synthetic resin and spirit
  • oil, wax and resin
  • resin, oil and turpentine
  • spirit, oil and wax.
Q.27

Lime stones are generally known as

  • aqueous rocks
  • sedimentary rocks
  • stratified rocks
  • all the above.
Q.28

Pick up the metal refractory from the following:

  • Molyblendum
  • Tungsten
  • Zicronium
  • All of these.
Q.29

French polish is

  • oil paint
  • distemper
  • spirit varnish
  • none to these.
Q.30

The most commonly used base for timber painting, is

  • red lead
  • zinc white
  • white lead
  • titanium white.
Q.31

The frog of a brick is normally made on its

  • top face
  • bottom face
  • longer face
  • shorter side.
Q.32

The lime which contains high percentage of calcium oxide, is generally called

  • fat lime
  • rich lime
  • white lime
  • All of these.
Q.33

Linseed oil is used in paints as

  • thinner
  • vehicle
  • base
  • drier.
Q.34

Laterite is found in

  • U.P.
  • Punjab
  • West Bengal
  • Kerala.
Q.35

Pick up the correct statement from the following:

  • Roasting is not necessary if iron ore is an oxide
  • Impurities float on the molten iron as slag
  • The slag contains lime about 45%
  • The molten iron is made to run, in a long channel formed in sand called 'sow'
  • All the above.
Q.36

Most commonly used solvent in oil paints, is

  • petroleum
  • spirit
  • coaltar
  • turpentine.
Q.37

Refractory bricks are

  • neutral refractory bricks
  • acid refractory bricks
  • basic refractory bricks
  • all the above.
Q.38

Brass is an alloy of

  • copper and zinc
  • zinc and lead
  • tin and silver
  • zinc and nickel
  • tin and lead.
Q.39

The portion of the brick cut across its width and having its length equal to that of a full brick, is known as

  • closer
  • queen closer
  • king closer
  • prince closer
  • none of these.
Q.40

Lime putty

  • is made from hydraulic lime
  • is made by adding lime to water
  • can be used only upto three days
  • may be obtained from drying lime water mix passing through IS sieve No. 300
  • all of above.
Q.41

Asbestos

  • is a natural fibrous mineral substance
  • is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3)
  • contains iron oxide and alumina
  • all the above.
Q.42

According to IS 399-the weight of the timber is specified at

  • 8% moisture content
  • 10% moisture content
  • 12% moisture content
  • 14% moisture content.
Q.43

In stone masonry, if stones are so placed that their layers are parallel to the direction of load, they

  • split easily
  • are affected by moisture
  • both (a) and (b)
  • none of these.
Q.44

Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following:

  • absence of sun light
  • dampness
  • presence of sap
  • stagnant air
  • All the above,
Q.45

For construction of structures under water, the type of lime used, is

  • hydraulic lime
  • fat lime
  • quick lime
  • pure lime
  • none of these.
Q.46

Plaster of Paris is obtained by calcining

  • bauxite
  • gypsum
  • kankar
  • lime stone
  • none of these.
Q.47

Lacquer is

  • oil paint
  • distemper
  • spirit varnish
  • none to these.
Q.48

The tendency of a stone is, to split along:

  • texture
  • fracture
  • cleavage
  • structure
  • all the above.
Q.49

Acrylic is the name of

  • cellulose resin
  • alkyd resin
  • methyl metha crylate
  • cumarone-indene.
Q.50

Acrylic sheets

  • possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness
  • are generally unaffected by most household detergents
  • possess the light transmission rate of 93%
  • are available in various shapes
  • all the above.
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