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Engineering Mechanics

Engineering Mechanics
The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is

β/2
30° + β/2
45° + β/2
60° + β/2

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

Four times
Nine times
Two times
Six times

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Engineering Mechanics
The velocity ratio of a single purchase crab winch can be increased by

Increasing the length of the handle
All of these
Increasing the number of teeth of the pinion
Increasing the radius of the load drum

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Engineering Mechanics
The moment of inertia of a square of side a about its diagonal is

a³/12
a⁴/12
a⁴/16
a²/8

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Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

None of these
g tanθ
g cosθ
g sinθ

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Engineering Mechanics
The matter contained in a body, is called

Mass
Weight
Impulsive force
Momentum

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