1. For slaking of 10 kg of CaO, the theoretical amount of water is
Correct : C. 3.2 kg
2. Plywood is made from
Correct : C. Teak wood only
3. A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than
Correct : C. 20 %
4. The preparation of surface of stone to obtain plain edges or to obtain stones of required size and
shape is known as
Correct : D. Dressing of stones
5. The hardest rock is
Correct : B. Diamond
6. Wrought iron is used for
Correct : B. Small sized water pipes
7. Pick up the correct statement from the following:
Correct : D. All the above
8. The process of mixing clay, water and other ingredients to make brick is known as
Correct : A. Kneading
9. The type of steel used for precision levelling staff, is
Correct : C. Invar
10. Formula for quick lime, is
Correct : A. CaCO3
11. The process of decarbonising the pig iron completely and then adding proper percentage of carbon
for manufacturing steel, is called
Correct : A. Cementation process
12. The maximum quantity of calcium chloride used as an accelerator in cement in percentage by
weight of cement is
Correct : B. 2
13. Which one of the following polymers is obtained from condensation polymerization?
Correct : D. All of these
14. The portion of a brick cut to form angles other than right angles in plan, is known as
Correct : D. Squint brick
15. The moisture content in a well seasoned timber is
Correct : B. 10 % to 12 %
16. The cement becomes unsound by the presence of excess
Correct : D. All of these
17. For one cubic metre of brick masonry, number of bricks required, is
Correct : D. 500
18. Rapid hardening cement contains
Correct : A. Tri-calcium silicate
19. In order of increasing percentage of silica, the correct sequence is
Correct : B. Calcareous clay, pure clay, sandy clay
20. Which of the following timbers is suitable for making sports goods?
Correct : A. Mulberry
21. The stones obtained by blasting are used as
Correct : D. All the above
22. Pick up the correct statement from the following:
Correct : D. All the above
23. Mastic asphalt is
Correct : D. All the above
24. Pick up the correct statement from the following:
Correct : C. Lime is available by calcining calcium carbonate at 900°C
25. The frog of the brick in a brick masonry is generally kept on
Correct : B. Top face
26. Pick up the correct statement from the following:
Correct : D. All the above
27. For obtaining vinyl chloride acetate, the method used, is
Correct : C. Co-polymerization
28. Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
Correct : B. 9 kg/mm2
29. The normal consistency of ordinary Portland cement is about
Correct : C. 30 %
30. Lacquer is
Correct : C. Spirit varnish
31. Plaster of Paris is obtained by calcining
Correct : B. Gypsum
32. Pick up the correct statement from the following:
Correct : D. All the above
33. Priming consists of
Correct : A. One part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
34. The coefficient of hardness of stones used in road work should be greater than
Correct : D. 17
35. Manganese steels
Correct : D. All the above
36. The most commonly used base for timber painting, is
Correct : C. White lead
37. Pick up the correct statement from the following:
Correct : D. All the above
38. Pick up the correct statement from the following:
Correct : D. All the above
39. Quartzite is a
Correct : D. Siliceous rock
40. The plastics made from cellulose resin
Correct : D. All the above
41. Polymerization helps to improve the property of
Correct : D. All of these
42. For filling cracks in masonry structures, the type of bitumen used, is
Correct : D. Plastic bitumen
43. Expanded metal is
Correct : D. All the above
44. Pick up the plutonic rock from the following:
Correct : A. Granite
45. The portion of the brick without a triangular corner equal to half the width and half the length, is
called
Correct : C. King closer
46. Cement is said to be of good quality if
Correct : D. None of these
47. The silica is used for preparing
Correct : D. All of these
48. The timber having maximum resistance against white ants, is obtained from
Correct : B. Shishum
49. Duco is one of the patent forms of
Correct : D. Cellulose paints
50. Quartzite, a metamorphic stone is
Correct : D. All the above
51. If water required for 1 bag of cement is 30 litres, the water cement ratio is:
Correct : C. 0.60
52. A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called
Correct : D. Strip
53. The percentage of water for normal consistency, is
Correct : C. 15% to 25%
54. Pick up the correct statement from the following:
Correct : D. All the above
55. In a rock calcium carbonate predominates. State whether it is:
Correct : C. Calcareous rock
56. The cracks which extend from bark towards the sap wood in the cross section of a tree, are called
Correct : B. Star shakes
57. The steel used for rails under heavy traffic and on sharp curves, is
Correct : C. Manganese steel
58. The steel used in R.C.C. work is
Correct : B. Mild steel
59. Pick up the rock which is not a sedimentary rock from the following:
Correct : D. Dolerite
60. Acrylic is the name of
Correct : C. Methyl methacrylate
61. The PVC doors and windows are preferred as they are
Correct : D. All of these
62. The sequence of refractory materials according to increasing melting points is:
Correct : B. Bauxite, Chromites, Dolomite, Magnesia
63. Upto a maximum of 72% of iron, is available in
Correct : A. Magnetite
64. The melting point of silica is:
Correct : C. 1730°C
65. Lime stones are generally known as
Correct : D. All the above
66. Stones used for rubble masonry must be
Correct : B. Hard
67. The property by virtue of which lime sets under water, is known as
Correct : C. Hydraulicity
68. Porcelain is used as:
Correct : D. Reactor chambers
69. The lime which contains high percentage of calcium oxide, is generally called
Correct : D. None of these
70. Second class bricks
Correct : B. Produce a metallic sound when struck
71. Wrought iron contains carbon upto
Correct : A. 0.25 %
72. The variety of pig iron used for manufacture of wrought iron, is
Correct : C. White forge pig
73. Kaolin is chemically classified as
Correct : B. Argillaceous rock
74. Sewer pipes are made of
Correct : B. Stone ware
75. The process of manufacturing steel by heating short lengths of wrought iron bars mixed with
charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as
Correct : B. Crucible process
76. The rock generally used for roofing, is
Correct : C. Slate
77. The lime which contains mainly calcium oxide and slacks with water, is
Correct : B. Quick lime
78. The standard size of masonry bricks, is
Correct : B. 19 cm × 9 cm × 9 cm
79. The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
Correct : A. 15, 75, 10
80. Knots in timber are
Correct : D. Signs of branches cut off
81. Pick up correct statement from the following:
Correct : D. All the above
82. Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known
as
Correct : C. White cement
83. Pick up the correct statement from the following:
Correct : D. All the above
84. The minimum compressive strength of 1st class bricks should be
Correct : C. 100 kg/cm2
85. The cast iron when heated to red heat with powdered red haematite in an oven for increasing its
toughness, is converted to
Correct : C. Mottled cast iron
86. A well seasoned timber may contain moisture up to
Correct : D. 10 to 12 %
87. The usual percentages of clay and metal in cermet are:
Correct : D. 80%, 20%
88. Pick up the correct statement from the following:
Correct : D. All the above
89. The specific gravity of marble, is
Correct : D. 2.72
90. Plastic asphalt is
Correct : B. A mixture of cement and asphalt
91. Pick up the correct statement from the following:
Correct : D. All the above
92. The commonly used base for iron and steel work, is
Correct : A. Red lead
93. For high grade instruments the steel preferred to, is
Correct : A. Cast steel
94. Bitumen felt is used for
Correct : C. Both (A) and (B)
95. The most important constituent of an oil paint, is
Correct : D. All the above
96. Acrylic sheets
Correct : D. All the above
97. Brass is an alloy of
Correct : A. Copper and zinc
98. Pick up the polymineralic rock from the following:
Correct : D. Granite
99. Pick up the hypabyssal rock from the following:
Correct : B. Dolerite
100. The rocks formed by gradual deposition, are called