Civil Engineering - RCC Structures Design

16. 

A pre-stressed concrete member

A. is made of concrete
B. is made of reinforced concrete
C. is stressed after casting
D. possesses internal stresses.

Answer: Option D

Explanation:

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17. 

A part of the slab may be considered as the flange of the T-beam if

A. flange has adequate reinforcement transverse to beam
B. it is built integrally with the beam
C. it is effectively bonded together with the beam
D. all the above.

Answer: Option D

Explanation:

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18. 

An R.C.C. roof slab is designed as a two way slab if

A. it supports live loads in both directions
B. the ratio of spans in two directions is less than 2
C. the slab is continuous over two supports
D. the slab is discontinuous at edges.

Answer: Option B

Explanation:

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19. 

If C is creep coefficient, f is original prestress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:

A. (1 - C)mf - eE
B. (C - 1)mf + eE
C. (C - 1)mf - eE
D. (1 - C)mf + eE

Answer: Option B

Explanation:

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20. 

In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at

A. less loaded column
B. more loaded column
C. a point equidistant from either column
D. a point of the maximum shear force
E. a point of zero shear force.

Answer: Option E

Explanation:

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