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.

Answer: Option E

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.

Answer: Option A

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

Answer: Option C

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

Answer: Option C

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.

Answer: Option C

Explanation:

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