Civil Engineering - RCC Structures Design

21. 

Thickened part of a flat slab over its supporting column, is technically known as

A. drop panel
B. capital
C. column head
D. none of these.

Answer: Option A

Explanation:

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22. 

An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at

A. 25°
B. 35°
C. 45°
D. 55°
E. 60°

Answer: Option C

Explanation:

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23. 

The effective span of a simply supported slab, is

A. distance between the centres of the bearings
B. clear distance between the inner faces of the walls plus twice the thickness of the wall
C. clear span plus effective depth of the slab
D. none of these.

Answer: Option B

Explanation:

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24. 

Pick up the incorrect statement from the following:

A. In the stem of a retaining wall, reinforcement is provided near the earth side
B. In the toe slab of a retaining wall, rein forcement is provided at the bottom of the slab
C. In the heel slab of a retaining wall, rein forcement is provided at the top of the slab
D. None of these.

Answer: Option D

Explanation:

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25. 

The minimum cube strength of concrete used for a prestressed member, is

A. 50 kg/cm2
B. 150 kg/cm2
C. 250 kg/cm2
D. 350 kg/cm2
E. 400 kg/cm2

Answer: Option D

Explanation:

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