Concrete Technology MCQs with answers Page - 58

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Q. According to Indian standard specifications for the compressive strength test of cement, the cement and standard sand mortar in the ratio of.................. is used ?

  • (A) 1:1
  • (B) 1:2
  • (C) 1:3
  • (D) 1:4

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Q. For continuous transportation of concrete, the method used is ?

  • (A) transport of concrete by pans
  • (B) transport of concrete by wheel barrows
  • (C) transport of concrete by belt concrete conveyors
  • (D) transport of concrete by pumps

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Q. The function of aggregates in concrete is to serve as ?

  • (A) binding material
  • (B) filler
  • (C) catalyst
  • (D) all of these

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Q. The sound absorption coefficient of light weight concrete is nearly ........... than that of ordinary concrete ?

  • (A) twice
  • (B) three times
  • (C) four times
  • (D) six times

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Q. The number of bags of cement required per cubic metre of 1:2:4 concrete will be approximately ?

  • (A) 2 to 3
  • (B) 3 to 4
  • (C) 4 to 5
  • (D) 5 to 6

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Q. The breaking up of cohesion in a mass of concrete is called ?

  • (A) workability
  • (B) bleeding
  • (C) segregation
  • (D) creep

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Q. The removal of excess air after placing concrete helps in increasing the strength of concrete by ?

  • (A) 15 to 20%
  • (B) 20 to 30%
  • (C) 30 to 50%
  • (D) 50 to 70%

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Q. In order to provide colour, hardness and strength to the cement, the ingredient used is ?

  • (A) lime
  • (B) silica
  • (C) alumina
  • (D) iron oxide

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Q. In the manufacture of cement, the dry or wet mixture of calcareous and argillaceous materials burnt at a temperature between ?

  • (A) 900°C to 1000°C
  • (B) 1000°C to 1200°C
  • (C) 1200°C to 1500°C
  • (D) 1500°C to 1600°C

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Q. The capacity of a ware-house depends upon the ?

  • (A) floor area occupied by one cement bag
  • (B) height to which the cement bags are piled
  • (C) either (a) and (b)
  • (D) both (a) and (b)

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