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MCQs

Total Questions : 1549 | Page 1 of 155 pages
Question 1. By over-reinforcing a beam, the moment of resistance can be increased not more than
  1.    10 %
  2.    15 %
  3.    20 %
  4.    25 %
 Discuss Question
Answer: Option D. -> 25 %
Question 2. In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed
  1.    10 mm
  2.    15 mm
  3.    20 mm
  4.    25 mm
 Discuss Question
Answer: Option D. -> 25 mm
Question 3. A flat slab is supported
  1.    On beams
  2.    On columns
  3.    On beams and columns
  4.    On columns monolithically built with slab
 Discuss Question
Answer: Option D. -> On columns monolithically built with slab
Question 4. A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm² and 300 kg/cm², the Safe load on the column, should not exceed
  1.    4,120 kg
  2.    41,200 kg
  3.    412,000 kg
  4.    None of these
 Discuss Question
Answer: Option B. -> 41,200 kg
Question 5. If Sb, is the average bond stress on a bar of diameter ‘d’ subjected to maximum stress ‘t’, the length of the embedment ‘l’ is given by
  1.    l = dt/Sb
  2.    l = dt/2Sb
  3.    l = dt/3Sb
  4.    l = dt/4Sb
 Discuss Question
Answer: Option D. -> l = dt/4Sb
Question 6. The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
  1.    10 mm
  2.    15 mm
  3.    20 mm
  4.    25 mm
 Discuss Question
Answer: Option D. -> 25 mm
Question 7. Spacing of stirrups in a rectangular beam, is
  1.    Kept constant throughout the length
  2.    Decreased towards the centre of the beam
  3.    Increased at the ends
  4.    Increased at the centre of the beam
 Discuss Question
Answer: Option D. -> Increased at the centre of the beam
Question 8. A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm², the area of steel required, is
  1.    14 cm²
  2.    15 cm²
  3.    16 cm²
  4.    17 cm²
 Discuss Question
Answer: Option C. -> 16 cm²
Question 9. An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at
  1.    25°
  2.    35°
  3.    45°
  4.    55°
 Discuss Question
Answer: Option C. -> 45°
Question 10. Post tensioning system
  1.    Was widely used in earlier days
  2.    Is not economical and hence not generally used
  3.    Is economical for large spans and is adopted now a days
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these

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