10,000+Mechanical Engineering MCQS - 1

Question: 1

A material capable of absorbing large amount of energy before fractures is known as

(A) plasticity

(B) shock proof

(C) ductility

(D) toughness

Ans: D

toughness

Question: 2

Young's modulus is defined as the ratio of

(A) longitudinal stress to lateral strain

(B) lateral stress to longitudinal strain

(C) lateral strain to longitudinal strain

(D) longitudinal stress to longitudinal strain

Ans: D

longitudinal stress to longitudinal strain

Question: 3

Moment of inertia of an area is always least with respect to

(A) central axis

(B) centroidal axis

(C) radius of gyration

(D) bottom most axis

Ans: B

centroidal axis

Question: 4

The radial pressure and hoop tension in case of thick cylinder is

(A) maximum at inner and outer surfaces and minimum in middle

(B) minimum at inner and outré surfaces and maximum in middle

(C) minimum at inner surface and increases towards outer surface

(D) maximum at inner surface and decreases towards outer surface

Ans: D

maximum at inner surface and decreases towards outer surface

Question: 5

Damping capacity of a material is its ability to

(A) withstand creep failures

(B) withstand compression

(C) absorb variations

(D) absorb shock

Ans: C

absorb variations

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