Civil Engineering - RCC Structures Design

21. 

The weight of reinforced concrete, is generally taken as

A. 2200 kg/m3
B. 2300 kg/m3
C. 2400 kg/m3
D. 2500 kg/m3
E. 2800 kg/m3

Answer: Option C

Explanation:

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22. 

Total pressure on the vertical face of a retaining wall of height h per unit run exerted by the retained earth weighing w per unit volume, is

A.
B.
C.
D.

Answer: Option C

Explanation:

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23. 

The zone in which transverse bending is likely to occur may be obtained by drawing a line from the faces of the column making an angle θ° with horizontal where θ° is

A. 30°
B. 45°
C. 60°
D. none of these.

Answer: Option B

Explanation:

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24. 

If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by

A. D = 0.00775 aP
B. D = 0.0775 aP
C. D = 0.07775 aP
D. D = 0.775 Pa

Answer: Option A

Explanation:

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25. 

According to load factor method, the permissible load W on a short column reinforced with longitudinal bars and lateral stirrups, is

A. Stress in concrete x area of concrete
B. Stress in steel x area of steel
C. Stress in concrete x area of concrete + Stress in steel x area of steel
D. None of these.

Answer: Option C

Explanation:

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