Civil Engineering - RCC Structures Design

1. 

After prestressing process is completed, a loss of stress is due to

A. shrinkage of concrete
B. elastic shortening of concrete
C. creep of concrete
D. creep of steel
E. all the above.

Answer: Option E

Explanation:

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2. 

The minimum head room over a stair must be

A. 200 cm
B. 205 cm
C. 210 cm
D. 200 cm
E. 230 cm

Answer: Option C

Explanation:

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3. 

In case the factor of safety against sliding is less than 1.5, a portion of slab is constructed downwards at the end of the heel slab, which is known as

A. a key
B. a cut-off wall
C. a rib
D. all the above.

Answer: Option D

Explanation:

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4. 

The diameter of the column head support a flat slab, is generally kept

A. 0.25 times the span length
B. 0.25 times the diameter of the column
C. 4.0 cm larger than the diameter of the column
D. 5.0 cm larger than the diameter of the column
E. none of these.

Answer: Option A

Explanation:

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5. 

The steel generally used in R.C.C. work, is

A. stainless
B. mildsteel
C. high carbon steel
D. high tension steel.

Answer: Option B

Explanation:

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