Building Materials Questions For Competitive Exams

Building Materials

Questions For Competitive Exams

Such as U.P.S.C. , S.S.C. , I.A.S. , B.Sc. Engineering, Diploma and various interviews

1. The sedimentary rocks are formed due to : gradual deposition of materials like sand, clay, etc., generally by setting water
2. The rocks formed due to solidification of molten mass laying below or above the earth surface are called: Igneous Rocks
3. The rocks formed due to alteration of original structure under heat and excessive pressure are called: Metamorphic Rocks
4. Igneous rock has: Crystalline, glossy and fused textures
5. Granite is an example of: Igneous Rock
6. Laterite is chemically classified as: Argillaceous Rock
7. Gneiss is chemically classified as: Siliceous Rock
8. The main constituent of calcareous rock is: Lime or Calcium Carbonate
9. Examples of Siliceous Rocks: Granite, Quartzite, Gneiss
10. Examples of Argillceous Rocks: Laterite, Slate, Kaoline
11. Examples of Calcreous Rocks: Limestone , Marble
12. Examples of stratified rocks: Limesone, Slate, Sand Stone
13. Examples of unstratified rocks: Granite, Marble
14. A decomposed laterite that has deep brown or red colour: Moorum
15. Limestone is physically classified as: Stratified Rock
16. Slate in the for of tiles is used for: Excellent Roof Covering Material
17. Marble is an example of : Metamorphic Rock
18. Sandstone consists of: Quartz, Silica and Lime
19. Granite is mainly composed of: Quartz, Felspar and Mica
20. Gneiss is mainly composed of: Quartz and Felspar
21. Slate is composed of:  Alumina mixed with sand or carbonate of lime
22. A siliceous sandstone which has been subjected to metamorphic action: Quartzite
23. Marble is mainy composed of: Silica and Lime
24. In order to dry the quarry sap of freshly carried stone, it should be exposed t open air for a period of: six to twelve months
25. The compressive strength of granite is: 70 to 130 M Newton per Meter Square
26. The compressive strength of slate is: 60 to 70 M Newton per Meter Square
27. The compressive strength of Sandstone is: 35 to 40 M Newton per Meter Square
28. A good building stone is one which does not absorb more tha: 5% of it's weight of water after one day's immersion.
29. A stone with large percentage of Quartz is: Very Soft
30. The specific gravity of stone, in any case, should not be less than: 2.5
31. Major constituent of siliceous rock is: Silica
32. Major constituent of Argillaceous rock is: Clay or Alumina
33. Major constituent of Calcareous rock is: Calcium or Lime
34. The colour of Granite is: Grey, Green, Brown, Pink
35. The colour of Slate is: Grey or Dark Blue
36. The colour of sandstone is: White, Grey, Brown, Pink etc.
37. The colour of Limestone is: Brown, Yellow and Dark Grey
38. The colour of Moorum is: Deep Brown or Red
39. A fine grained granite: Offers high resistance to weathering
40. A fine grained granite: Can be easily polished and worked
41. A fine grained granite: is used for exterior facing of buildings
42. A Limestone containing about 30% of Alumina and Silica is called: Kankar
43. A Limestone found in seams of great thickness in non crystalline texture with earthy appearance is called: Compact Limestone
44. The specific gravity of Granite is:  2.64
45. The specific gravity of Slate is: 2.8
46. The specific gravity of Sandstone is: 2.65 to 2.95
47. The specific gravity of Limestone is: 2.6
48. The specific gravity of Marble is: 2.7
49. The specific gravity of Laterite is: 2 to 2.2
50. For Railway ballast, the stone should be: Hard, Dense, Durable, Tough and easily workable
51. When quarrying is to be done in hard stone and compact rocks, the usual methods of quarrying is: Blasting
52. The quarrying of stone by the method of wedging is successfully carried out in: Sandstones, Limestones, Marbles etc.
53. The compressive strength of Felspar is: More than Quartz
54. Gun cotton is made by saturating cotton with: Nitric Acid
55. The most powerful explosive used in blasting is: Gun Cotton
56. The dressing of stone is done: Immediately after Quarrying
57. For the construction of retaining walls, the stone used must be: Heavy
58. The crushing strength of stone depends upon its: Texture and Specific Gravity
59. The stone used for the construction of curved or ornamental work should be: Soft
60. The attrton test in the stone is performed: for determining the rate of wear of stone due to grinding action under traffic
61. The brick earth is derived by the disintegration of: Igneous Rocks
62. A first class brick should not absorb water more than: 20% of its own dry weight after 24 hours immersion in cold water.
63. A second class brick should not absorb water more than: 22% of its own dry weight after 24 hours immersion in cold water.
64. A third class brick should not absorb water more than: 25% of its own dry weight after 24 hours immersion in cold water.
65. The principal constituent of every kind of brick earth is: Alumina
66. The percentage of Alumina in good brick earth: 20% to 30%
67. The percentage of Silica in good brick earth: 50% to 60%
68. A first class brick should have a minimum crushing strength of: 10.5 MN per Meter Square
69. A second class brick should have a minimum crushing strength of: 7.5 MN per Meter Square
70. A third class brick should have a minimum crushing strength of: 5.5 MN per Meter Square
71. A perforated brick should have a minimum crushing strength of: 7 MN per Meter Square
72. Excess of Alumina in clay: Makes the brick crack and warp on drying
73. Excess of Silica in clay: Makes the brick brittle and Weak
74. Excess of Lime in clay: Causes the bricks to melt and distort during burning
75. Presence of Alkaline Salt: Absorbs moisture from the air which on drying leaves high powder deposit on the bricks
76. The colour of bricks depends upon: the amount of iron oxide present in the clay
77. The specific gravity of bricks is about: 2
78. The standard size of bricks are: 19 cm x 9 cm x 9 cm
79. The standard size of brick tiles are: 19 cm x 9 cm x 4 cm
80. The number of bricks required for one cubic meter of brick masonry are: 550
81. The size of mould for bricks should be: larger than the specified size of bricks
82. The alkaline salt present in the bricks causes: Effloescence
83. If clay containing pyrite is used to make brick, it causes: Efflorescence in brick
84. If water containing Gypsum is used for pugging clay, it causes: Efflorescence 
85. The good clay for making bricks is: Weathered Clay
86. For facing purposes, the hand made bricks are: Superior to machine made bricks
87. The process of mixing clay, water and other ingredients to make bricks, is known as: Kneading
88. The process in which the earth is dug out and is left to atmospheric action for few weeks, is known as: Weathering
89. The burning of bricks in kilns is complete within: 24 Hrs
90. The bricks after burning in kilns require about: 12 days to cool down for unloading
91. The temperature on which the brick should be burnt ranges between: 1000 to 1200 Degree Celsius
92. The bricks after moulding should be dried in: air for 3 to  days but not in sun
93. The indentation marks left on bricks during the process of moulding, are known as: Frogs
94. The natural drying of bricks is also called: Hack Drying
95. The frog of a brick is normally made on its: Top Face
96. The type of brick suitable for panal walls for multi storeyed buildings is: Hollow Bricks and Perforated Bricks
97. The average out turn of first class bricks in clamp burning is: 60%
98. The average out turn of second class bricks in kiln burning is: 80% to 90%
99. Jhama bricks are: Over burnt with irregular shape
100. The earth required for the moulding of 1000 bricks is about: 1.5 to 2.5 cum
101. Bricks used in construction of acute and obtuse squint quoins: Squint Bricks
102. The bricks used for street pavements, stable floors, garden walls: Paving Bricks
103. The bricks used for circular pillars: Round Bricks
104. The bricks capable of withstanding high temperature and low coefficient of expansion and contraction: Refractory Bricks
105. Classification of Refractory Bricks: Acid Bricks, Basic Bricks, Neutral Bricks
106. Classification of Acid Bricks: Fire Bricks and Silica Bricks
107. Classification of Basic Refractory Bricks: Magnesite Bricks, Dolomite Bricks, Bauxite Bricks
108. Classification of Neutral Refractory Bricks: Chrome Bricks, Chrome Magnesite Bricks and Spinel Bricks

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