Civil Engineering - Building Construction

46. 

The angle between skew back of a flat arch and the horizontal, is kept approximately equal to

A.
B. 30°
C. 60°
D. 90°
E. 120°.

Answer: Option C

Explanation:

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47. 

In clay soil

A. swelling and shrinkage characteristics prevail
B. consolidation continues even after several years of construction.
C. differential settlement is generally prevalent
D. all the above.

Answer: Option D

Explanation:

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48. 

Pick up the incorrect statement from the following :

A. the width of the wall is constructed thicker at the base in a stepped fashion
B. a long vertical load transferring concrete structure is called a concrete pile
C. in pile which transfers the load to the soil by the friction between the pile and the surrounding soil is called friction pile.
D. the pile which transfers the load to a hard rock bed at certain depth is called load bearing
E. none of the these.

Answer: Option D

Explanation:

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49. 

Depth of lean concrete bed placedat the bottom of a wall footing, is kept

A. 10 cm
B. 15 cm
C. equal to its projection beyond wall base
D. less than its projection beyond wall base.

Answer: Option C

Explanation:

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50. 

For a wall carrying heavy load on low bearing capacity soil,

A. lean concrete bed is provided
B. thick concrete bed is provided
C. reinforced concrete bed is provided
D. (a) and (c) of the above
E. (b) and (c) of the above.

Answer: Option D

Explanation:

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