Civil Engineering - RCC Structures Design

11. 

In a simply supported slab the minimum spacing of distribution reinforcement, should be four times the effective thickness of the slab or

A. 20 cm
B. 30 cm
C. 40 cm
D. 50 cm
E. 60 cm

Answer: Option E

Explanation:

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12. 

A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is

A. 30
B. 35
C. 40
D. 45
E. 50

Answer: Option C

Explanation:

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13. 

If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by

A. 0.2
B. 0.3
C. 0.4
D. 0.5
E. 0.7

Answer: Option D

Explanation:

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14. 

An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is

A. 8.3 kg/cm2
B. 7.6 kg/cm2
C. 21.5 kg/cm2
D. 11.4 kg/cm2

Answer: Option A

Explanation:

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15. 

If the ratio of the span to the overall depth does not exceed 10, the stiffness of the beam will ordinarily be satisfactory in case of a

A. simply supported beam
B. continuous beam
C. cantilever beam
D. none of these.

Answer: Option C

Explanation:

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