Strength Of Materials MCQ Questions & Answers

1

In a simple bending of beams, the stress in the beam varies

A) Linearly B) Parabolically C) Hyperbolically D) Elliptically

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Answer & Solution

Answer: Option A

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2

The moment of resistance of a balanced reinforced concrete beam is based on the stresses in

A) Steel only B) Concrete only C) Steel and concrete both D) None of these

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Answer & Solution

Answer: Option C

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3

The bending equation is

A) $$\frac{{\text{M}}}{{\text{I}}} = \frac{\sigma }{{\text{y}}} = \frac{{\text{E}}}{{\text{R}}}$$ B) $$\frac{{\text{T}}}{{\text{J}}} = \frac{\tau }{{\text{R}}} = \frac{{{\text{C}}\theta }}{{\text{I}}}$$ C) $$\frac{{\text{M}}}{{\text{R}}} = \frac{{\text{T}}}{{\text{J}}} = \frac{{{\text{C}}\theta }}{{\text{I}}}$$ D) $$\frac{{\text{T}}}{{\text{I}}} = \frac{\tau }{{\text{J}}} = \frac{{\text{R}}}{{{\text{C}}\theta }}$$

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Answer & Solution

Answer: Option A

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4

In a watch, the spring is used to store strain energy. This energy is released

A) To stop the watch B) To run the watch C) To change the time D) All of these

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Answer & Solution

Answer: Option B

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5

In a beam where shear force changes sign, the bending moment will be

A) Zero B) Minimum C) Maximum D) Infinity

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Answer & Solution

Answer: Option C

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6

A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

A) Same B) Double C) Half D) One-fourth

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Answer & Solution

Answer: Option B

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7

The shear force diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, consists of

A) One right angled triangle B) Two right angled triangles C) One equilateral triangle D) Two equilateral triangles

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Answer & Solution

Answer: Option B

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8

Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunched plate in

A) Tension B) Compression C) Bearing D) Any one of the above

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Answer & Solution

Answer: Option A

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9

In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called

A) Creeping B) Yielding C) Breaking D) Plasticity

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Answer & Solution

Answer: Option A

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10

The direct stress induced in a long column is __________ as compared to bending stress.

A) Same B) More C) Less D) Negligible

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Answer & Solution

Answer: Option D

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Strength Of Materials MCQ Questions &amp; Answers | Mechanical Engineering

Strength Of Materials MCQ Questions & Answers | Mechanical Engineering