Concrete Technology MCQs with answers Page - 30

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Q. Segregation of concrete increases the strength of concrete.

  • (A) Yes
  • (B) No
  • (C) ---
  • (D) ---

A

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Q. The resistance of an aggregate to compressive forces is known as

  • (A) crushing value
  • (B) impact value
  • (C) abrasion value
  • (D) none of these

A

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Q. According to the rule of water cement ratio, the strength of concrete wholly depends upon

  • (A) the quality of cement
  • (B) the quality of cement mixed with aggregate
  • (C) the amount of water used in preparation of concrete mix
  • (D) all of the above

A

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Q. The process of proper and accurate measurement of all concrete materials for uniformity of proportions and aggregate grading is called

  • (A) proportioning
  • (B) grading
  • (C) mixing
  • (D) batching

A

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Q. The minimum particle size of coarse aggregate is

  • (A) 2.5 mm
  • (B) 4.75 mm
  • (C) 5.85 mm
  • (D) 6.5 mm

A

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Q. The concrete without any reinforcement has

  • (A) low
  • (B) high
  • (C) ---
  • (D) ---

A

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Q. A mix with water-cement ratio of 0.78 is termed as wet mix.

  • (A) Yes
  • (B) No
  • (C) ---
  • (D) ---

A

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Q. Cement concrete is

  • (A) permeable
  • (B) impermeable
  • (C) ---
  • (D) ---

A

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Q. The presence of lime in cement

  • (A) makes the cement sound
  • (B) provides strength to the cement
  • (C) lowers the clinkering temperature
  • (D) all of these

A

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Q. If the aggregate completely passes through a 50 mm sieve and retained on 40 mm sieve, then the particular aggregate is said to be flaky if its least dimension is less than

  • (A) 27 mm
  • (B) 37 mm
  • (C) 47 mm
  • (D) 57 mm

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