Civil Engineering - RCC Structures Design

31. 

The minimum thickness of a flat slab is taken

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.

Answer: Option E

Explanation:

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32. 

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

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.

Answer: Option C

Explanation:

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33. 

Minimum spacing between horizontal parallel reinforcement of the same size should not be less than

A. one diameter
B. 2.5 diameters
C. 3 diameters
D. 3.5 diameters
E. 4 diameters

Answer: Option A

Explanation:

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34. 

Columns may be made of plain concrete if their unsupported lengths do not exceed their least lateral dimension

A. two times
B. three times
C. four times
D. five times
E. six times.

Answer: Option C

Explanation:

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35. 

An R.C.C. column is treated as short column if its slenderness ratio is less than

A. 30
B. 35
C. 40
D. 50
E. 60

Answer: Option D

Explanation:

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