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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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