Quiznetik

Building Materials | Set 5

1. Bituminous fells are used for

Correct : A. Covering A.C. sheets

2. Quick setting cement is produced by adding

Correct : C. Aluminium sulphate in very fine powdered form

3. Pick up the correct statement from the following:

Correct : D. All the above

4. The normal curing period for lime mortar, is:

Correct : C. 7 days

5. German silver is an alloy of

Correct : C. Copper, nickel and zinc

6. For the manufacture of stainless steel, steel is mixed with

Correct : A. Chromium

7. The presence of original rounded surface on the manufactured piece of timber, is called

Correct : A. Wane

8. In paints, the pigment is responsible for

Correct : B. Colour

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

Correct : A. Dressing

10. Dry rot

Correct : C. Reduces the timber to powder

11. Pozzolana (or surkhi) is used in lime

Correct : A. To impart hydraulicity

12. The size of modular bricks, is

Correct : B. 19 × 9 × 9 cm

13. Plywood is obtained by gluing wooden sheets at

Correct : C. Both (A) and (B)

14. The low voltage porcelain is mainly used for

Correct : D. All of these

15. The initial setting time of hydraulic lime, is

Correct : D. 120 minutes

16. PVC stands for

Correct : B. Polythene vinyl chloride

17. Cement paints usually

Correct : D. All the above

18. The kiln which may work throughout the year, is

Correct : C. Hoffman's kiln

19. The main ingredient of a good quality brick earth, is

Correct : D. Alumina

20. In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is

Correct : A. Right angles

21. The most durable varnish is

Correct : D. Oil varnish

22. Softer variety of steel may be obtained by

Correct : C. Bessemer process

23. Bitumen emulsion is

Correct : D. All the above

24. Plastic bitumen is generally used for

Correct : C. Crack fillings

25. Asbestos is

Correct : D. All the above

26. The rocks which are formed due to pouring of magma at the earth's surface are called

Correct : C. Volcanic rocks

27. Invar contains

Correct : D. 36% of nickel

28. Distemper is

Correct : A. A paint consisting of powdered chalk, pigments and water

29. The compound of Portland cement which reacts immediately with water and also sets first is

Correct : C. Tri-calcium aluminate

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

Correct : C. Radial

31. The fire clay contains pure

Correct : C. Hydrated aluminium silicate

32. Pick up the correct characteristic of Pyroxene from the following:

Correct : D. All the above

33. The base material for distemper, is

Correct : A. Chalk

34. Slacking of lime is affected by

Correct : B. Immersing the lime in water

35. Stones used for the construction of retaining walls must be

Correct : D. Heavy

36. Permanent magnets are made of high carbon steel and

Correct : D. 45% of cobalt

37. Stainless steel resists corrosion due to

Correct : D. Chromium

38. The most important constituent of varnish, is

Correct : D. All the above

39. A ferrous metal is

Correct : D. All the above

40. For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is

Correct : A. 80 : 13 : 7

41. Water paint is a

Correct : D. All the above

42. Spirit varnish generally consists of

Correct : D. Spirit and shellac

43. Duco paints are

Correct : D. Oil paints

44. Pick up the correct statement from the following:

Correct : D. All the above

45. Steel contains carbon approximately

Correct : B. 0.05% to 1.75%

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

Correct : D. 100 %

47. Forge pig may be converted to wrought iron by

Correct : B. Pudding

48. Pick up the correct statement from the following:

Correct : D. All the above

49. The softest rock is

Correct : C. Talc

50. Mild steel is used for

Correct : A. Structural works in beams, joints and girders

51. The most valuable timber may be obtained from

Correct : D. Teak

52. Mastic asphalt is

Correct : B. Non-corrosive material

53. For lime concrete,

Correct : D. All the above

54. The material generally not used as extender in paints, is

Correct : D. Zinc white

55. Pick up the non-inflammable plastic from the following:

Correct : B. Polyvinyl chloride plastics

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

Correct : D. Mottled pig

57. If the ore impurities is

Correct : D. All the above

58. The plastics prepared from Vinyl resin are

Correct : D. All of these

59. A rock contains only one mineral. It is called

Correct : C. Monomineralic

60. Pegmatite is a/an

Correct : A. Intrusive igneous rock

61. Dorry's testing machine is used for

Correct : B. Hardness test of stone

62. Dolomite is a lime stone which contains carbonate of magnesia upto

Correct : D. 45 %

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

Correct : B. Queen closer

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

Correct : D. 0

65. For a 50 kg cement bag water required, is

Correct : D. 22.5 litres

66. Slump test for concrete is carried out, to determine

Correct : C. Workability

67. The frog of a brick is normally made on its

Correct : A. Top face

68. Granite mainly composed of quartz and feldspar particles, is obtained from

Correct : C. Igneous rocks

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

Correct : B. Grey or foundry pig

70. Pick up the metal refractory from the following:

Correct : D. All of these

71. With storage, strength of cement

Correct : B. Decreases

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

Correct : C. Lime stone

73. The rocks formed from molten magma, are called

Correct : B. Igneous rocks

74. Bitumen paints offer

Correct : D. Protective surface

75. Ground glass

Correct : D. All the above

76. The wedging is adopted for quarrying costly stratified rock such as

Correct : D. All the above

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

Correct : C. White

78. In a mortar, the binding material is

Correct : A. cement

79. Wrought iron contains carbon up to

Correct : A. 0.25%

80. Ultimate strength to cement is provided by

Correct : B. Di-calcium silicate

81. The initial setting time of lime-pozzolana, is

Correct : D. 120 minutes.

82. The clay to be used for manufacturing for bricks is dugout and allowed to weather in

Correct : A. the monsoon

83. Quartzite is a

Correct : D. Silicious rock.

84. Pick up the hypabyssal rock from the following

Correct : B. Dolerite

85. Depending on the chemical composition and mechanical properties, iron classified as

Correct : D. all the above.

86. The main constituent of fly-ash, is

Correct : D. All of these.

87. Bitumen in

Correct : D. All the above.

88. The plastics made from cellulose resin

Correct : D. All the above.

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

Correct : A. sillicious rocks

90. A badly mixed cement concrete results in

Correct : C. honey combing

91. Chemically, marble is known as

Correct : C. calcareous rock

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

Correct : C. heart wood

93. Refractory bricks are used for

Correct : D. Combustion chambers.

94. Expanded metal is

Correct : D. All the above.

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

Correct : C. baulk

96. Quick lime (or caustic lime)

Correct : D. All the above.

97. Pick up the correct statement from the following

Correct : D. All the above.

98. Name the type of cement from the following for canal linings

Correct : A. sulphate resisting cement

99. Mastic asphalt is generally used for

Correct : D. both (a) and (b).

100. The most fire resistant paints are

Correct : C. asbestos paints