RCC Structures Design problems
- 1. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is
Options- A. 25
- B. 30
- C. 35
- D. 40
- E. 15 Also asked in: Bank Exams
Correct Answer: 35
- 2. For M 150 grade concrete (1:2:4) the moment of resistance factor is
Options- A. 0.87
- B. 8.50
- C. 7.50
- D. 5.80
- E. none of these. Discuss
Correct Answer: 8.50
- 3. Pick up the correct statement from the following:
Options- A. Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal reinforcement from buckling
- B. Lateral reinforcement prevents the shearing of concrete on diagonal plane
- C. Lateral reinforcement stops breaking away of concrete cover, due to buckling
- D. Lateral reinforcement in R.C.C. columns, is kept not less than 5 mm diameter
- E. All the above. Discuss
Correct Answer: All the above.
- 4. If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as
Options- A.
- B.
- C.
- D.
- E.
Discuss
Correct Answer:
- 5. Lapped splices in tensile reinforcement are generally not used for bars of size larger than
Options- A. 18 mm diameter
- B. 24 mm diameter
- C. 30 mm diameter
- D. 36 mm diameter
- E. 32 mm diameter Discuss
Correct Answer: 36 mm diameter
- 6. According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is
Options- A. half of the width of the slab
- B. two-third of the width of the slab
- C. three-fourth of the width of the slab
- D. four-fifth of the width of the slab
- E. three-fifth of the width of the slab. Discuss
Correct Answer: three-fourth of the width of the slab
- 7. The minimum thickness of a flat slab is taken
Options- A. 13 cm
- B. L/32 for end panels without drops
- C. L/36 for end panels without drops
- D. L/36 for interior panels without drop
- E. all the above. Discuss
Correct Answer: all the above.
- 8. The neutral axis of a T-beam exists
Options- A. within the flange
- B. at the bottom edge of the slab
- C. below the slab
- D. all the above. Discuss
Correct Answer: all the above.
- 9. Minimum spacing between horizontal parallel reinforcement of the same size should not be less than
Options- A. one diameter
- B. 2.5 diameters
- C. 3 diameters
- D. 3.5 diameters
- E. 4 diameters Discuss
Correct Answer: one diameter
- 10. The load stress of a section can be reduced by
Options- A. decreasing the lever arm
- B. increasing the total perimeter of bars
- C. replacing larger bars by greater number of small bars
- D. replacing smaller bars by greater number of greater bars
- E. none of these. Discuss
Correct Answer: replacing larger bars by greater number of small bars
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