RCC Structures Design problems
- 1. In a slab, the pitch of the main reinforcement should not exceed its effective depth
Options- A. three times
- B. four times
- C. five times
- D. two times. Discuss
Correct Answer: three times
- 2. An R.C.C. column is treated as short column if its slenderness ratio is less than
Options- A. 30
- B. 35
- C. 40
- D. 50
- E. 60 Discuss
Correct Answer: 50
- 3. After prestressing process is completed, a loss of stress is due to
Options- A. shrinkage of concrete
- B. elastic shortening of concrete
- C. creep of concrete
- D. creep of steel
- E. all the above. Discuss
Correct Answer: all the above.
- 4. If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and ?c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is
Options- A. ?cAc + m ?cAsc
- B. ?c(A - Asc) + m ?cAsc
- C. ?c[A + (m - 1)ASC]
- D. all the above. Discuss
Correct Answer: all the above.
- 5. For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is
Options- A. 0.6
- B. 0.7
- C. 0.8
- D. 0.9 Discuss
Correct Answer: 0.9
- 6. The ratio of the breadth to effective depth of a beam is kept
Options- A. 0.25
- B. 0.50
- C. 0.70
- D. 0.75
- E. none of these. Discuss
Correct Answer: 0.50
- 7. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is
Options- A. square
- B. rectangular
- C. trapezoidal
- D. triangular. Discuss
Correct Answer: rectangular
- 8. If p1 and P2 are effective lateral loadings at the bottom and top exerted by a level earth subjected to a superload on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 9. The self-weight of the footing, is
Options- A. not considered for calculating the upward pressure on footing
- B. also considered for calculating the upward pressure on footihg
- C. not considered for calculating the area of the footing
- D. both (b) and (c) Discuss
Correct Answer: not considered for calculating the upward pressure on footing
- 10. By over-reinforcing a beam, the moment of resistance can be increased not more than
Options- A. 10%
- B. 15%
- C. 20%
- D. 25% Discuss
Correct Answer: 25%
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