RCC Structures Design problems
- 1. According to the steel beam theory of doubly reinforced beams
Options- A. tension is resisted by tension steel
- B. compression is resisted by compression steel
- C. stress in tension steel equals the stress in compression steel
- D. no stress is developed in compression concrete as well as in tension concrete
- E. all the above. Discuss
Correct Answer: all the above.
- 2. The spacing of transverse reinforcement of column is decided by the following consideration.
Options- A. The least lateral dimension of the column
- B. Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column
- C. Forty-eight times the diameter of transverse reinforcement
- D. All the above. Discuss
Correct Answer: All the above.
- 3. An under-reinforced section means
Options- A. Steel is provided at the under side only
- B. Steel provided is insufficient
- C. Steel provided on one face only
- D. Steel will yield first. Discuss
Correct Answer: Steel will yield first.
- 4. The system in which high tensile alloy steel bars (silica manganese steel) are used as prestressing tendons, is known as
Options- A. Freyssinet system
- B. Magnel-Blaton system
- C. C.C.L. standard system
- D. Lee-McCall system. Discuss
Correct Answer: Lee-McCall system.
- 5. If C is creep coefficient, f is original prestress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:
Options- A. (1 - C)mf - eE
- B. (C - 1)mf + eE
- C. (C - 1)mf - eE
- D. (1 - C)mf + eE Discuss
Correct Answer: (C - 1)mf + eE
- 6. The maximum shear stress (q) in concrete of a reinforced cement concrete beam is
Options- A.
- B.
- C.
- D.
- E.
Discuss
Correct Answer:
- 7. The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is
Options- A. 51.5
- B. 52.5
- C. 53.5
- D. 54.5
- E. 55.5 Discuss
Correct Answer: 53.5
- 8. 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
Options- A. 10 mm
- B. 15 mm
- C. 20 mm
- D. 25 mm
- E. 30 mm Discuss
Correct Answer: 25 mm
- 9. If the loading on a prestressed rectangular beam, is uniformly distributed, the tendon to be provided should be .
Options- A. straight below centroidal axis
- B. parabolic with convexity downward
- C. parabolic with convexity upward
- D. straight above centroidal axis
- E. none of these. Discuss
Correct Answer: parabolic with convexity downward
- 10. If the length of a wall on either side of a lintel opening is at least half of its effective span L, the load W carried by the lintel is equivalent to the weight of brickwork contained in an equilateral triangle, producing a maximum bending moment
Options- A.
- B.
- C.
- D.
- E.
Discuss
Correct Answer:
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