# Civil Engineering - Theory of Structures

### Exercise :: Theory of Structures - Section 1

26.

If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good

 A. B. C. D. all the above.

Explanation:

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27.

The ratio of maximum shear stress to average shear stress of a circular beam, is

 A. B. C. D. Explanation:

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28.

A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,

 A. 10 m B. 12 m C. 14 m D. 16 m E. 18 m

Explanation:

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29.

A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Esteel = 2 x 106 kg/cm2, the side of the rod, is

 A. 1 cm B. 1.5 cm C. 2 cm D. 2.5 cm

Explanation:

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30.

The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is

 A. B. C. D. 