Building Materials MCQs with answers Page - 11

Here, you will find a collection of MCQ questions on Building Materials. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. The solvent used in cement paints ?

  • (A) thinner
  • (B) turpentine
  • (C) water
  • (D) spirit

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Q. The final setting time of ordinary cement should not be more than ?

  • (A) 2 hours
  • (B) 4 hours
  • (C) 8 hours
  • (D) 10 hours

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Q. The sedimentary rocks are formed due to ?

  • (A) solidification of molten mass lying below or above the earth surface
  • (B) gradual deposition of materials like sand, clay, etc., generally by setting water
  • (C) alteration of original structure under heat and excessive pressure
  • (D) none of the above

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Q. For railway ballast, the stone should be ?

  • (A) soft with a uniform texture
  • (B) hard, heavy, strong and durable
  • (C) hard, tough, resistant to abrasion and durable
  • (D) hard, dense, durable, tough and easily workable

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Q. The percentage of silica in a good brick clay should vary from ?

  • (A) 20 to 30%
  • (B) 30 to 40%
  • (C) 40 to 50%
  • (D) 50 to 60%

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Q. The dressing of stone is done ?

  • (A) immediately after quarrying
  • (B) after seasoning
  • (C) after three months of quarrying
  • (D) just before building

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Q. The quarrying of stone by the method of wedging is successfully carried out in ?

  • (A) sandstones
  • (B) limestones
  • (C) marbles
  • (D) all of these

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Q. The wood generally used for railway sleepers is ?

  • (A) mango
  • (B) kail
  • (C) babul
  • (D) deodar

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Q. The alkaline salt present in the bricks, absorbs moisture from the air which on drying ?

  • (A) leaves pores and makes the bricks porous
  • (B) leaves high powder deposit on the brick
  • (C) makes the bricks brittle and weak
  • (D) all of these

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Q. The lime which consists almost entirely of calcium oxide, is called ?

  • (A) poor lime
  • (B) rich lime
  • (C) hydraulic lime
  • (D) limestone

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