Strength Of Materials In Me - Study Mode

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[#151] The shear force of a cantilever beam of length $$l$$ carrying a uniformly distributed load of w per unit length is _________ at the free end.

(A) Zero

(B) $$frac{{{ ext{w}}l}}{4}$$

(C) $$frac{{{ ext{w}}l}}{2}$$

(D) $${ ext{w}}l$$

Correct Answer

(A) Zero

[#152] The bending moment of a cantilever beam of length $$l$$ and carrying a uniformly distributed load of w per unit length is __________ at the free end.

(A) Zero

(B) $$frac{{{ ext{w}}l}}{4}$$

(C) $$frac{{{ ext{w}}l}}{2}$$

(D) $${ ext{w}}l$$

Correct Answer

(A) Zero

[#153] If percentage reduction in area of a certain specimen made of material 'A' under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material 'B' is 40%, then

(A) The material A is more ductile than material B

(B) The material B is more ductile than material A

(C) The ductility of material A and B is equal

(D) The material A is brittle and material B is ductile

Correct Answer

(A) The material A is more ductile than material B

[#154] The section modulus (Z) of a beam is given by

(A) $$frac{I}{{ ext{y}}}$$

(B) $$I.{ ext{y}}$$

(C) $$frac{{ ext{y}}}{I}$$

(D) $$frac{{ ext{M}}}{I}$$

Correct Answer

(A) $$frac{I}{{ ext{y}}}$$

[#155] The maximum strain energy that can be stored in a body is known as

(A) Impact energy

(B) Resilience

(C) Proof resilience

(D) Modulus of resilience

Correct Answer

(C) Proof resilience