☰ Concrete Technology (Civil Engineering) - MCQs

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Q13.

Approximate ratio of direct tensile strength to flexural strength is :

  • A. 0.25
  • B. 0.33
  • C. 0.5
  • D. 0.90
    ✍ Discuss    
Q14.

Approximate ratio of strength of the 30 cm cube to that of 15 cm cube is :

  • A. 1.10
  • B. 1.00
  • C. 0.90
  • D. 0.75
    ✍ Discuss    
Q15.

Poison's ratio for concrete :

  • A. increases with richer mix
  • B. decreases with richer mix
  • C. remains constant
  • D. none of these
    ✍ Discuss    
Q16.

Stress-strain curve for cement concrete is almost linear upto :

  • A. 0.25 times ultimate stress
  • B. 0.35 times ultimate stress
  • C. 0.5 times ultimate stress
  • D. none of these
    ✍ Discuss    
Q17.

Strength of concrete show an increase with :

  • A. decrease in rate of loading
  • B. increase in rate of loading
  • C. unaffected by rate of loading
  • D. depends in application of load
    ✍ Discuss    
Q18.

Fineness modulus of aggregate is between :

  • A. 2 - 3.5
  • B. 3,5 - 5.0
  • C. 5 - 6.0
  • D. 6 - 7.5
    ✍ Discuss    
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