250+Building Materials MCQs

Section 1

Questions 1 - 10

1

Question

The size of mould for bricks, is generally kept

A a little small to specified size B a little large to specified size C equal to specified size D 10% larger than specified size

2

Question

Most commonly used solvent in oil paints, is

A petroleum B spirit C coaltar D turpentine.

3

Question

With storage, strength of cement

A increases B remains the same C decreases D none to these.

4

Question

The commonly used raw material in the manufacture of cement, is

A slate B sand stone C lime stone D basalt.

5

Question

The most commonly used base for timber painting, is

A red lead B zinc white C white lead D titanium white.

6

Question

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,

7

Question

The rocks formed from molten magma, are called

A sedimentary rocks B igneous rocks C metamorphic rocks D none of these.

8

Question

Bitumen paints offer

A pleasing surface B hard surface C smooth surface D protective surface

9

Question

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

A fat lime B rich lime C white lime D All of these.

10

Question

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.

Section 2

Questions 11 - 20

11

Question

French polish is

A oil paint B distemper C spirit varnish D none to these.

12

Question

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.

13

Question

The colour of statuary marble used for sculptor's work, is

A red B blue C white D green

14

Question

Second class bricks

A are of dark brown colour B produce a metallic sound when struck C are well burnt D are under burnt.

15

Question

Teak wood is suitable for

A sports articles B furnitures C railway sleepers D all the above.

16

Question

Ground glass

A is made by grinding its one side B is made by melting powdered glass paints surface C is used for getting light without transparency D all the above.

17

Question

The harmonious mixing of the clay ingredients, is known as

A weathering B blending C tempering D None of these.

18

Question

Brass is an alloy of

A copper and zinc B zinc and lead C tin and silver D zinc and nickel

19

Question

The wedging is adopted for quarrying costly stratified rock such as

A laterite B marble C limestone D All the above.

20

Question

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 larger proportien of lime grounded coarser than normal cement

Section 3

Questions 21 - 30

21

Question

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

A hydraulic lime B fat lime C quick lime D none of these.

22

Question

Pick up the correct statement from the following:

A Rust is due to formation of oxides B Cast iron oxidises less C Wrought iron oxidises moderately D All the above.

23

Question

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.

24

Question

A bull nose brick is not used for

A rounding off sharp corners B pillars C decoration purpose D arches.

25

Question

Red short iron cracks when bent due to the presence of

A sulphur B carbon C phosphorus D silicon.

26

Question

Linseed oil is used in paints as

A thinner B vehicle C base D drier

27

Question

Plaster of Paris is obtained by calcining

A bauxite B gypsum C kankar D lime stone

28

Question

If the ore impurities is

A clay, lime stone is used as flux B lime stone, clay is used as flux C quartz, lime stone and argallaceous iron ores are used as flux D All the above.

29

Question

The plastics prepared from Vinyl resin are

A odourless B non-toxic C transparent D all of these.

30

Question

Chlorite, a green colour mineral is mainly derived from the decomposition of

A augite B biotite C horn blende D All of these.

Section 4

Questions 31 - 40

31

Question

Lime stones are generally known as

A aqueous rocks B sedimentary rocks C stratified rocks D all the above.

32

Question

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.

33

Question

A rock contains only one mineral. It is called

A homogeneous B non-homogeneous C monomineralic D polymineralic.

34

Question

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.

35

Question

Pegmatite is a

A intrusive igneous rock B extrusive igneous rock C sedimentary rock D metamorphic rock.

36

Question

The method of addition polymerization is used for obtaining:

A polythylene B polypropylene C polyvinylchloride D All of these.

37

Question

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.

38

Question

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.

39

Question

Asphalt is obtained from

A petroleum distillation B bitumen distillation C plastic distillation D none of these.

40

Question

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

A Tricalcium silicate B Gypsum C Di-calcium silicate D Tri calcium aluminate.

Section 5

Questions 41 - 50

41

Question

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.

42

Question

Stones used for rubble masonry must be

A soft B hard C light D heavy

43

Question

Dolomite is a lime stone which contains carbonate of magnesia upto

A 45%. B 15% C 35% D 25%

44

Question

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 king closer C queen closer D none of these.

45

Question

Seasoning of timber is done for

A increasing moisture content B decreasing moisture content C increasing strength of timber D none to these.

46

Question

Bitumen felt is used for

A water proofing B damp proofing C both (a) and (b) D neither (a) nor (b).

47

Question

Bitumen is classified into

A 2 grades B 8 grades. C 4 grades D 10 grades.

48

Question

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.

49

Question

The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is

A 20 B 15 C 10

50

Question

For a 50 kg cement bag water required, is

A 16.5 litres B 18.5 litres C 20.5 litres D 22.5 litres

Section 6

Questions 51 - 60

51

Question

The presence of sand in brick earth prevents:

A cracking of bricks B shrinkage of bricks C warping of bricks D none of these.

52

Question

The property by virtue of which lime sets under water, is known as

A slacking B hydraulicity C setting D calcining.

53

Question

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

A 17 B 15 C 12 D 10

54

Question

Slump test for concrete is carried out, to determine

A strength B durability C workability D water content.

55

Question

Basalt is

A extrusive igneous rock B metamorphic rock C sedimentary rock D intrusive igneous rock.

56

Question

The frog of a brick is normally made on its

A bottom face B top face C longer face D shorter side.

57

Question

The most important constituent of an oil paint, is

A thinner B vehicle C pigment D all the above.

58

Question

Granite mainly composed of quartz and felsper particles, is obtained from

A sedimentary rocks B metamorphic rocks C igneous rocks D all the above.

59

Question

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

A Bessemer pig B Grey or foundry pig C White or forge pig D Mottled pig

60

Question

Refractory bricks are

A neutral refractory bricks B acid refractory bricks C basic refractory bricks D all the above.

Section 7

Questions 61 - 70

61

Question

Porcelain is used as :

A sanitary wares B electric insulators C storage vessels D All of the above.

62

Question

Durability of building stone is affected by its

A location in structure B resistance to atmosphere C chemical composition D all the above.

63

Question

The weight of the timber is specified at

A 8% moisture content B 10% moisture content C 12% moisture content D 14% moisture content.

64

Question

Spirit varnish generally consists of

A oil, wax and resin B alcohol, wax and turpentine C pigment and synthetic resin D spirit and shellac

65

Question

The tendency of a stone is, to split along:

A cleavage B fracture C texture D all the above.

66

Question

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.

67

Question

Lime mortar is generally made with

A quick lime B fat lime C hydraulic lime D plain lime

68

Question

Duco paints are

A plastic paints B cellulose paints C emulsion paints D oil paints.

69

Question

Steel contains carbon approximately

A 1.50% to 5.6% B 0.05% to 1.75% C 0.25% D none to these.

70

Question

Cast iron contains carbon approximately

A 1.5% to 5.5% B 0.05% to 1.75% C 0.250% D none to these

Section 8

Questions 71 - 80

71

Question

Plastic asphalt is

A used as a water proofing layer over roof B a mixture of cement and asphalt C a natural asphalt D a refinery product.

72

Question

The yield strength and tensile strength of low carbon steel may be improved by the addition of

A manganese B venadium C chromium D nickel

73

Question

Bitumen completely dissolves in

A carbon bisulphide B chloroform C coaltar D All of these.

74

Question

Good quality cement contains higher percentage of

A Tricalcium silicate B Di-calcium silicate C Tri-calcium aluminate D Tetra calcium alumino ferrite

75

Question

Soundness of cement is tested by

A Vicat's apparatus B Le-chatelier apparatus C compressive strength testing apparatus D none of the these.

76

Question

The PVC doors and windows are preferred as they are

A termile proof B rot proof C water proof D all of these.

77

Question

Based on its dry weight, a freshly felled tree may contain water

A 25% B 50% C 75% D 100%.

78

Question

Forge pig may be converted to wrought iron by

A rolling B pudding C shingling D refining.

79

Question

To give a brilliant finish, the type of varnish used, is

A water varnish B spirit varnish C turpentine varnish D oil varnish

80

Question

The softest rock is

A marble B diamond C talc D quartz.

Section 9

Questions 81 - 90

81

Question

Bitumen may be dissolved in

A carbondioxide B water C sodium chloride D carbon disulphide

82

Question

Asbestos

A is an excellant insulator for heat and electricity B is fire-proof and acid proof C has sp. gravity equal to 3.10 D All the above.

83

Question

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.

84

Question

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.

85

Question

Laterite is a

A volcanic rock B argillaceous rock C calcareous rock D silicious rock.

86

Question

A stone is rejected if it absorbs water more than

A 5% B 10% C 15% D 20%

87

Question

The most valuable timber may be obtained from

A chir B teak. C sal D shisham

88

Question

Pick up the compound responsible for early strength of cement from the following:

A Tetra-calcium alumino-ferrite B Tricalcium silicate C Tricalcium aluminate D Dicalcium silicate.

89

Question

Mastic asphalt is

A acid resisting material B non-corrosive material C corrosive material D heating-resisting material.

90

Question

Which one of the following is used for preparing porcelain

A clay B feldspar C quartz D All of these.

Section 10

Questions 91 - 100

91

Question

The commonly used base for iron and steel work, is

A red lead B zinc white C white lead D titanium white.

92

Question

Lacquer is

A oil paint B distemper C spirit varnish D none to these.

93

Question

Pig iron made from heamatite ores free from sulphur, phosphorus and copper, is known as

A Bessemer pig B Grey or foundry pig C White or forge pig D All the above.

94

Question

The material generally not used as extender in paints, is

A powdered silica B gypsum C talc D zinc white.

95

Question

The most commonly used synthetic abrasive is

A aluminium carbide B boric acid C silicon D All of these.

96

Question

For light and ornamental casting, the most unsuitable pig iron, is

A Mottled pig. B White or forge pig C Grey or foundry pig D Bessemer pig

97

Question

Seasoning of timber is essential to remove

A knots from timber B sap from timber C twisted fibre from timber D roughness of timber.

98

Question

The pigment used in paints for corrosive resistance, is

A white lead B ferrous oxide C zinc white D red lead

99

Question

A well seasoned timber may contain moisture up to

A 10 to 12%. B 8 to 10% C 6 to 8% D 4 to 6%

100

Question

The stones obtained by blasting are used as

A ballast in railways B aggregates for concrete C roadmetal D All the above.

Section 11

Questions 101 - 110

101

Question

Distemper is

A a paint consisting of powdered chalk, pigments, and water B a water proofing agent C a paint consisting of coloured cement and water D a drying agent.

102

Question

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.

103

Question

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.

104

Question

Sea sand used in structures causes

A dampness B efflorescence C disintegration D All of these.

105

Question

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.

106

Question

Refractory bricks resist

A high temperature B chemical action C dampness D all the above.

107

Question

In arches, stratified stones are placed so that their planes are

A parallel B perpendicular C radial D none of these.

108

Question

Pick up the correct statement from the following:

A Acid test is done to find out the weathering quality of stones B Crushing test is done to find out the compressive strength of the stone C Impact test is done to determine toughness of a stone D All the above.

109

Question

The fire clay contains pure

A lime B oxide of iron C hydrated aluminium silicate D magnesium.

110

Question

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.

Section 12

Questions 111 - 120

111

Question

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.

112

Question

Snowcrete is one of the patent forms of

A distempers B water proof cement paints C enamel paints D cellulose paints.

113

Question

The usual percentages of clay and metal in cermet are :

A 50%, 50% B 60%, 40% C 70%, 30% D 80%, 20%.

114

Question

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 Ignoeous rocks.

115

Question

The base material for distemper, is

A chalk B lime C lime putty D cement wash.

116

Question

Pick up the synthetic resin from the following:

A Malamine resin B Urea resin C Phenolic resin D All of these.

117

Question

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.

118

Question

The steel used in R.C.C. work is

A stainless steel B mild steel C high carbon steel D wrought iron.

119

Question

Mastic asphalt is

A water proof B fire proof C elastic D all the above.

120

Question

Non acid-resistant asbestos is :

A tremolite asbestos B chrysolite abestos C amosite absestos D none of these.

Section 13

Questions 121 - 130

121

Question

Stones used for the construction of retaining walls must be

A soft B hard C light D heavy.

122

Question

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.

123

Question

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 Ironoxide D Magnesia.

124

Question

Cast iron is used for

A structural works in beams B small sized water pipes C columns and struts D none to these.

125

Question

Stainless steel resists corrosion due to

A carbon B sulphur C vanadium D chromium

126

Question

Commonly used thinner in

A lacquer paints, is alcohol B cellulose paints is ethyle acetate C oil paints, is naptha D all the above.

127

Question

Good quality sand is never obtained from

A river B nala C sea D gravel powder.

128

Question

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

A gravel B sand stone C gypsum D dolerite

129

Question

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

A 1.5 B 1.7 C 2.2 D 2.7.

130

Question

The most important constituent of varnish, is

A drier B solvent C resin D all the above.

Section 14

Questions 131 - 140

131

Question

A ferrous metal is

A cast iron B wrought iron C steel D all the above.

132

Question

Water paint is a

A white wash B colour wash C whiting D all the above.

133

Question

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.

134

Question

Mastic asphalt is normally used for

A sound insulation B water proofing C fire proofing D none to these.

135

Question

Lime stone is not a

A sedimentary rock B stratified rock C aqueous rock D metamorphic rock.

136

Question

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.

137

Question

Pig iron is manufactured from the ores by

A dressing B calcination and roasting C smelting D all the above.

138

Question

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.

139

Question

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.

140

Question

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.

Section 15

Questions 141 - 150

141

Question

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).

142

Question

The low voltage porcelain is mainly used for

A switch block B insulating tubes C lamp sockets D All of these.

143

Question

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.

144

Question

The initial setting time of hydraulic lime, is

A 30 minutes B 90 minutes C 120 minutes D 60 minutes

145

Question

PVC stands for

A plastic very compact B polythene vinyl chloride C polythene vinyl carbon D polythene vanadium carbide.

146

Question

Generally wooden moulds are made from

A ply wood B shisham wood C deodar wood D teak wood

147

Question

Cement paints usually

A contain hydrated lime B contain 5% to 10% colour pigments C are prepared with white cement D all the above.

148

Question

The kiln which may work throughout the year, is

A Clamp B Bull's kiln C Hoffman's kiln D none of these.

149

Question

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

150

Question

The cement becomes unsound by the presence of excess

A sulphur B magnesia C lime D All of these.

Section 16

Questions 151 - 160

151

Question

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.

152

Question

The percentage of water for normal consistency, is

A 10% to 25% B 15% to 25% C 20% to 30% D 25% to 35%.

153

Question

The main ingredient of a good quality brick earth, is

A magnesia B lime C silica D alumina.

154

Question

Bitumen is generally obtained from

A organic material B synthetic material C petroleum product D coal.

155

Question

For one cubic metre of brick masonry, number of Hand Made bricks required, is

A 560 B 530 C 500 D 600

156

Question

For one cubic metre of brick masonry, number of machine made bricks required, is

A 560 B 530 C 500 D 600

157

Question

For one cubic metre of brick masonry, number of bricks required, is

A 450 B 500 C 425 D 550

158

Question

The steel which contains fissures and cavities, is manufactured by

A Cementation process B Crucible process C Bessemer process D Open hearth process.

159

Question

Pick up the volcanic rock from the following:

A Granite B Dolerite C Basalt D All the above.

160

Question

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

Section 17

Questions 161 - 170

161

Question

The most durable varnish is

A water varnish B spirit varnish C turpentine varnish D oil varnish

162

Question

Softer variety of steel may be obtained by

A Cementation process B crucible process C Bessemer process D Open hearth process.

163

Question

Calcination of iron ores is done

A to remove moisture B to remove carbonic acid C after dressing D all the above.

164

Question

Strength of cement concrete primarily depends upon

A quality of water B quantity of aggregate C quantity of cement D water-cement ratio.

165

Question

Rapid hardening cement contains

A Tri-calcium silicate B Tri-calcium aluminate C Tetra-calcium alumino-ferrite D Dicalcium silicate.

166

Question

Bitumen emulsion is

A a liquid containing bitumen in suspension B a paint C used as anti-corrosive paint D all the above.

167

Question

Jhamb bricks are

A under burnt B over burnt C kutcha D none of these.

168

Question

Plastic bitumen is generally used for

A road pavements B expansion joints C crack fillings D none to these.

169

Question

The commonly used thinner in oil paints, is

A naptha B turpentine C both (a) and (b) D neither (a) nor (b)

170

Question

Asbestos is

A corrugated sheet used for roofing B an incombustible fire proof material C an organic substance D all the above.

Section 18

Questions 171 - 180

171

Question

In a rock calcium carbonate predominates. State whether it is :

A Sillicious rock B Argillaceous rock C Calcareous rock D None of these.

172

Question

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.

173

Question

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

174

Question

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.

175

Question

The commonly used drying oil for oil paints, is

A olive oil B linseed oil C kerosine oil D accetate of lead.

176

Question

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.

177

Question

The foliated structure is very common in

A sedimentary rocks B igneous rocks C metamorphic rocks D none of these.

178

Question

Turpentine oil is used in paints as

A thinner B vehicle C base D drier.

179

Question

The hardest rock is

A marble B diamond C talc D quartz.

180

Question

The silica is used for preparing

A silica bricks B coke oven C lining for glass furnaces D all of these.

Section 19

Questions 181 - 190

181

Question

Wrought iron is manufactured from pig iron by

A refining B puddling C shingling D all the above.

182

Question

Fibre boards can be

A distempered B painted C painted and distempered D used for furniture.

183

Question

Portland pozzolana cement possesses

A higher resistance to chemical attack B lower heat of hydration C lower shrinkage on drying D all the above.

184

Question

Wrought iron is used for

A structural works in beams B small sized water pipes C columns and struts D none to these

185

Question

The timber having maximum resistance against white ants, is obtained from

A chir B shisham C sal D teak.

186

Question

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.

187

Question

Lime concrete is generally used for

A wall foundations B flooring at ground level C both (a) and (b) D neither (a) nor (b).

188

Question

Bituminous fells are used for

A covering A.C. sheets B covering sloping roofs C D.P.C. D none to these.

189

Question

The minimum compressive strength of Ilnd class bricks should be

A 75 kg/cm2 B 90 kg/cm2 C 100 kg/cm2 D 120 kg/cm2

190

Question

Stuco paints are suitable for

A stone masonry B brick walls C both (a) and (b) D neither (a) nor (b).

Section 20

Questions 191 - 200

191

Question

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

192

Question

Duco is one of the patent forms of

A emulsion paints B bituminous paints C aluminium paints D cellulose paints.

193

Question

Bulking of sand is caused due to

A surface moisture B air voids C viscosity D clay contents

194

Question

The normal curing period for lime mortar, is:

A one day B 3 days C 7 days D 10 days

195

Question

The type of steel used for precision levelling staff, is

A Titanium steel B Carbon steel C Invar D Stainless steel.

196

Question

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

197

Question

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.

198

Question

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.

199

Question

Quartzite, a metamorphic stone is

A hard B brittle C crystalline D All the above.

200

Question

Formula for quick lime, is

A CaCO3 B CaO C CO3CO2 D none to these.

Section 21

Questions 201 - 210

201

Question

For the manufacture of stainless steel, steel is mixed with

A chromium B nickel C tungsten D none of these.

202

Question

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.

203

Question

In paints, the pigment is responsible for

A durability B colour C smoothness D glassy face

204

Question

The operation of removal of impurities or clay adhering to iron ores, is known as

A dressing B calcination C roasting D smelting.

205

Question

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.

206

Question

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.

207

Question

Dry rot

A cracks the timber B reduces the strength of timber C reduces the timber to powder D shrinks the timber

208

Question

Which one of the following polymers is obtained from condensation polymerization?

A phenol formaldehyde B carbamide C melamine-formaldehyde D all of these.

209

Question

The weight of 1 m3 of brick earth, is about

A 1200 kg B 1500 kg C 1800 kg D 2000 kg.

210

Question

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.

Section 22

Questions 211 - 220

211

Question

The rocks in which argil (or clay) predominates, are called

A sillicious rocks B argillaceous rocks C calcareous rocks D igneous rocks

212

Question

A badly mixed cement concrete results in

A segregation B bleeding C honey combing D none to these.

213

Question

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.

214

Question

Chemically, marble is known as

A metamorphic rock B argillaceous rock C calcareous rock D silicious rock.

215

Question

Inner part of a timber log surrounding the pith, is called

A heart wood B sapwood C cambium layer D none to these.

216

Question

The filler used in plastic bitumen, is

A shale powder B talc powder C asbestos powder D plastic powder

217

Question

Resins are

A not soluble in water B soluble in spirit C used in varnishes D all the above.

218

Question

Refractory bricks are used for

A retaining walls B columns C piers D combustion chambers.

219

Question

Expanded metal is

A manufactured from steel sheets B used for reinforced concrete in road pavements C measured in term of SWM (shortway mesh) and LWM (long way mesh) D all the above.

220

Question

The rock generally used for roofing, is

A granite B basalt C slate D pumice.

Section 23

Questions 221 - 230

221

Question

Apiece of sawn timber whose cross-sectional dimensions exceed 5 cm, in one direction and 20 cm in the other direction, is called a

A cant B deal C baulk D strip.

222

Question

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.

223

Question

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.

224

Question

Name the type of cement from the following for canal linings :

A sulphate resisting cement B rapid hardening cement C quick setting cement D pozzuolana cement.

225

Question

Mastic asphalt is generally used for

A damp proof course B water proof layer C partition walls D both (a) and (b).

226

Question

The most fire resistant paints are :

A enamel paints B aluminium paints C asbestos paints D cement paints.

227

Question

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

228

Question

A pug mill is used for

A softening brick earth B moulding brick earth C tempering brick earth D providing brick earth

229

Question

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.

230

Question

The commonly used lime in white washing, is

A white lime B fat lime C hydraulic lime D lime

Section 24

Questions 231 - 240

231

Question

Shingle is

A decomposed laterite B crushed granite C water bound pebbles D air weathered rock.

232

Question

Pick up the plutonic rock from the following:

A Granite B Dolerite C Basalt D All the above.

233

Question

The lime which contains mainly calcium oxide and slacks with water, is

A fat lime B quick lime C hydraulic lime D poor lime

234

Question

Seasoning is

A a process of removing sap B creosoting C painting with sodium silicate D coating with tar.

235

Question

Inhaling of fly-ash over a long period causes

A silicosis B fibrosis of lungs C bronchitis D All of these.

236

Question

Minimum required water cement ratio for a workable concrete, is

A 0.30 B 0.40 C 0.50 D 0.60

237

Question

Rocks formed due to alteration of original structure due to heat and excessive pressure are called

A sedimentary rocks B igneous rocks C metamorphic rocks D none of these.

238

Question

The compound of Portland cement which contributes to the strength after two to three years is

A Tricalcium silicate B Di-calcium silicate C Tricalcium aluminate D Tetracalcium alumino ferrite.

239

Question

Clay and silt content in a good brick earth must be at least

A 50% B 40% C 30% D 25%

240

Question

Bessemer process is used for the manufacture of

A Pig iron B cast iron C Wrought iron D Steel.

Section 25

Questions 241 - 250

241

Question

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.

242

Question

Which one of the following is an air binding material ?

A Gypsum B Acid-resistant cement C Quick lime D All of these.

243

Question

A good quality stone absorbs water less than

A 5% B 10% C 15% D 20%

244

Question

Plywood is made from

A common timber B bamboo fibre C teak wood only D asbestos sheets.

245

Question

Soundness test of cement determines

A quality of free lime B ultimate strength C durability D initial setting

246

Question

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% D all the above.

247

Question

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.

248

Question

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 it is not smooth when rubbed in between fingers D a handful of cement thrown into a bucket of water does not sink

249

Question

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°.

250

Question

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%

Section 26

Questions 251 - 251

251

Question

Geologically, marble is known as

A sedimentary rock B igneous rock C metamorphic rock D stratified rock.

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Section 8

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Section 11

Section 12

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Section 14

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