Engineering Mechanics - Study Mode

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[#236] The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

(A) sinθ

(B) cosθ

(C) tanθ

(D) cosecθ

Correct Answer

(A) sinθ

[#237] In ideal machines, mechanical advantage is __________ velocity ratio.

(A) Equal to

(B) Less than

(C) Greater than

(D) None of these

Correct Answer

(A) Equal to

[#238] Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.

(A) Upwards

(B) Downwards

(C) Horizontal

(D) None of these

Correct Answer

(A) Upwards

[#239] The amplitude is always __________ radius of the circle.

(A) Equal to

(B) Less than

(C) Greater than

(D) None of these

Correct Answer

(A) Equal to

[#240] The bodies which rebound after impact are called

(A) Inelastic bodies

(B) Elastic bodies

(C) Neither elastic nor inelastic bodies

(D) None of these

Correct Answer

(B) Elastic bodies