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Engineering Mechanics

Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

ω2.y
ω3.y
ω.y
ω2/y

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Engineering Mechanics
The maximum efficiency of a screw jack is

(1 + tanφ)/(1 - tanφ)
(1 - tanφ)/(1 + tanφ)
(1 + sinφ)/(1 - sinφ)
(1 - sinφ)/(1 + sinφ)

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Engineering Mechanics
The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is

D / d
D × d
D - d
D + d

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Engineering Mechanics
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)

2π/ω
π/ω
2π × ω
ω/2π

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Engineering Mechanics
Which of the following are vector quantities?

Linear displacement
All of these
Linear velocity
Linear acceleration

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Engineering Mechanics
In order to double the period of simple pendulum, the length of the string should be

Quadrupled
Halved
Doubled
None of these

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MORE MCQ ON Engineering Mechanics

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