Concrete Technology MCQs with answers Page - 10

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A

Admin • 833.24K Points
Coach

Q. To perform the soundness test, the water is added to the cement at the rate of 0.72 P by weight of cement, where P is the percentage of water required for normal consistency paste.

  • (A) Correct
  • (B) Incorrect
  • (C) ---
  • (D) ---

A

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Q. Water cannot be used as a lubricant in concrete mix.

  • (A) True
  • (B) False
  • (C) ---
  • (D) ---

A

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Q. The ordinary concrete is no used for

  • (A) M 10
  • (B) M 20
  • (C) M 25
  • (D) M 40

A

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Q. Smaller size aggregates require less quantity of water for lubrication.

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

A

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Q. When the concrete mix is too wet, it causes

  • (A) segregation
  • (B) low density
  • (C) excess laitance at the top
  • (D) all of these

A

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Q. The maximum quantity of aggregate per 50 kg of cement should not exceed

  • (A) 100 kg
  • (B) 200 kg
  • (C) 350 kg
  • (D) 450 kg

A

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Q. The presence of calcium chloride in water

  • (A) accelerates setting of cement
  • (B) accelerates hardening of cement
  • (C) causes little effect on quality of concrete
  • (D) all of these

A

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Q. The material used as an ingredient of concrete is usually

  • (A) cement
  • (B) aggregate
  • (C) water
  • (D) all of these

A

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Q. In flooring of building, prestressed cement concrete is commonly used.

  • (A) Right
  • (B) Wrong
  • (C) ---
  • (D) ---

A

Admin • 833.24K Points
Coach

Q. Le-chatelier apparatus is used to perform

  • (A) fineness test
  • (B) soundness test
  • (C) consistency test
  • (D) compressive strength test

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