# Civil Engineering - Theory of Structures

### Exercise :: Theory of Structures - Section 2

1.

By applying the static equations i.e. ΣH = 0, ΣV = 0 and ΣM = 0, to a determinate structure, we may determine

 A. supporting reactions only B. shear forces only C. bending moments only D. internal forces only E. all the above.

Explanation:

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2.

The general expression for the B.M. of a beam of length l is the beam carries A. a uniformly distributed load w/unit length B. a load varying linearly from zero at one end to w at the other end C. an isolated load at mid span D. none of these.

Explanation:

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3.

The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is

 A. B. C. D. E. 1.0

Explanation:

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4.

If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 x 105 N/mm2) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm2, the angle of twist in radians, is

 A. 0.001 B. 0.002 C. 0.0025 D. 0.003 E. 0.005

Explanation:

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5.

The maximum B.M. due to an isolated load in a three hinged parabolic arch, (span l, rise h) having one of its hinges at the crown, occurs on either side of the crown at a distance

 A. B. C. D. 