Building Materials MCQs with answers Page - 6

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A

Admin • 833.24K Points
Coach

Q. The thinner used for oil paints is ?

  • (A) carbon tetrachloride
  • (B) water
  • (C) any one of these
  • (D) turpentine

A

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Coach

Q. Eminently hydraulic lime is one in which the percentage of silica, alumina and iron oxide is ?

  • (A) 25 to 30%
  • (B) 5 to 10%
  • (C) 30 to 40%
  • (D) 10 to 25%

A

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Coach

Q. The compressive strength of second class bricks should not be less than ?

  • (A) 12 MN/m²
  • (B) 7.5 MN/m²
  • (C) 10.5 MN/m²
  • (D) 9 MN/m²

A

Admin • 833.24K Points
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Q. The average out-turn of first class bricks in clamp burning is about ?

  • (A) 80%
  • (B) 70%
  • (C) 60%
  • (D) 50%

A

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Coach

Q. The percentage of the residue left after sieving good Portland cement in 90 micron sieve should not exceed ?

  • (A) 5%
  • (B) 30%
  • (C) 10%
  • (D) 20%

A

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Q. The compressive strength of a good Portland cement and standard sand mortar after 3 days of curing should not be less than ?

  • (A) 11.5 MN/m²
  • (B) 17.5 MN/m²
  • (C) 7 MN/m²
  • (D) 21 MN/m²

A

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Q. The compressive strength of felspar is .......... quartz ?

  • (A) less than
  • (B) equal to
  • (C) more than
  • (D) any one of these

A

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Q. Seasoning of timber ?

  • (A) does not give dimensional stability
  • (B) all of these
  • (C) increases the weight of timber
  • (D) improves strength properties of timber

A

Admin • 833.24K Points
Coach

Q. The bricks should be burnt at temperature from ?

  • (A) 500°C to 700°C
  • (B) 300°C to 500°C
  • (C) 1000°C to 1200°C
  • (D) 700°C to 1000°C

A

Admin • 833.24K Points
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Q. Vicat's apparatus is used to determine the ?

  • (A) normal consistency of cement
  • (B) initial setting time of cement
  • (C) final setting time of cement
  • (D) all of these

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