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Engineering Mechanics

Engineering Mechanics
The velocity ratio of a first system of pulleys with 4 pulleys is

20
4
8
16

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Engineering Mechanics
The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h)

Equal to
None of these
Less than
Greater than

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Engineering Mechanics
If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

None of these
g/2
g/3
g/4

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Engineering Mechanics
The efficiency of a lifting machine is the ratio of

Output to the input
All of these
Mechanical advantage to the velocity ratio
Work done by the machine to the work done on the machine

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Engineering Mechanics
The horizontal range of a projectile (R) is given by

R = u² cos2α/g
R = u² sinα/g
R = u² sin2α/g
R = u² cosα/g

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Engineering Mechanics
The motion of a particle round a fixed axis is

Circular
Translatory
Translatory as well as rotary
Rotary

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MORE MCQ ON Engineering Mechanics

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