Civil Engineering - RCC Structures Design

Exercise :: RCC Structures Design - Section 4

21.

In a prestressed member it is advisable to use

 A. low strength concrete only B. high strength concrete only C. low strength concrete but high tensile steel D. high strength concrete and high tensile steel E. high strength concrete but low tensile steel

Explanation:

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22.

The ratio of the breadth to effective depth of a beam is kept

 A. 0.25 B. 0.50 C. 0.70 D. 0.75 E. none of these.

Explanation:

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23.

Spacing of stirrups in a rectangular beam, is

 A. kept constant throughout the length B. decreased towards the centre of the beam C. increased at the ends D. increased at the centre of the beam.

Explanation:

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24.

If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is

 A. square B. rectangular C. trapezoidal D. triangular.

Explanation:

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25.

If permissible compressive stress in concrete is 50 kg/cm2, tensile stress in steel is 1400 kg/cm2 and modular ratio is 18, the depth d of the beam, is

 A. B. C. D. E.