Civil Engineering - Strength of Materials

26. 

For a simply supported beam carrying uniformly distributed load W on it entire length L, the maximum bending moment is

A.
B.
C.
D.
E.

Answer: Option B

Explanation:

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27. 

Euler's formula states that the buckling load P for a column of length l, both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are I and E respectively, is given by the relation

A.
B.
C.
D.
E. P = πEl2.

Answer: Option A

Explanation:

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28. 

The stiffness factor for a prismatic beam of length L and moment of inertia I, is

A.
B.
C.
D.
E.

Answer: Option A

Explanation:

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29. 

The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference, is known as

A. yield stress
B. longitudinal stress
C. hoop stress
D. circumferential stress
E. ultimate stress.

Answer: Option C

Explanation:

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30. 

In a simply supported beam (l + 2a) with equal overhangs (a) and carrying a uniformly distributed load over its entire length, B.M. at the middle point of the beam will be zero if

A. l = 2a
B. l = 4a
C. l < 2a
D. l > a
E. l > 3a.

Answer: Option A

Explanation:

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