# Civil Engineering - Structural Design Specifications

### Exercise :: Structural Design Specifications - Section 1

36.

The grade of plain concrete to be used in sea water or structures exposed to sea water, should be

 A. M lO B. M 15 C. M 20 D. M 30

Explanation:

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37.

In case of continuous beams, the distance between the points of zero moment, may be obtained as (where l is the effective span).

 A. 0.5 l B. 0.6 l C. 0.7 l D. 0.8 l

Explanation:

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38.

The reinforcing bars in beams are not bundled in contact if the diameter of the bars, exceeds

 A. 12 mm B. 20 mm C. 35 mm D. 30 mm E. 36 mm

Explanation:

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39.

For the reinforced concrete member totally immersed in sea water, the normal cover provided for the reinforcing bars is further increased by

 A. 10 mm B. 20 mm C. 30 mm D. 40 mm E. 50 mm

Explanation:

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40.

The effective and actual lengths of a cantilever are same if continuous at the support,

 A. unstrained against torsion at the support and free at the end B. with partial restraint against torsion of the support and free at the end C. restrained against torsion at the support and free at the end D. none of the these.

Explanation:

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