Strength Of Materials In Me - Study Mode

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[#166] The ratio of lateral strain to the linear strain within elastic limit is known as

(A) Young's modulus

(B) Bulk modulus

(C) Modulus of rigidity

(D) Poisson's ratio

Correct Answer

(D) Poisson's ratio

[#167] A concentrated load is one which

(A) Acts at a point on a beam

(B) Spreads non-uniformly over the whole length of a beam

(C) Spreads uniformly over the whole length of a beam

(D) Varies uniformly over the whole length of a beam

Correct Answer

(A) Acts at a point on a beam

[#168] The strain energy stored in a body due to shear stress, is (where $$ au $$ = Shear stress, C = Shear modulus and V = Volume of the body)

(A) $$frac{{ au { ext{V}}}}{{2{ ext{C}}}}$$

(B) $$frac{{2{ ext{C}}}}{{ au { ext{V}}}}$$

(C) $$frac{{{ au ^2}{ ext{V}}}}{{2{ ext{C}}}}$$

(D) $$frac{{2{ ext{C}}}}{{{ au ^2}{ ext{V}}}}$$

Correct Answer

[#169] The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be

(A) 1 : 2

(B) 1 : 3

(C) 1 : 4

(D) 1 : 2.5

Correct Answer

(B) 1 : 3

[#170] Which of the following statement is correct?

Correct Answer

(D) All of the above
(F) A uniformly distributed load spreads uniformly over the whole length of a beam
(K) Rivets are generally specified by its shank diameter.
(P) Stress is directly proportional to strain within elastic limit