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Engineering Mechanics

Engineering Mechanics
The matter contained in a body, is called

Weight
Impulsive force
Mass
Momentum

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Engineering Mechanics
A force while acting on a body may

Balance the forces, already acting on it
Change its motion
All of these
Give rise to the internal stresses in it

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Engineering Mechanics
The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)

P = m/W + C
P = C - mW
P = mW + C
P = mW - C

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Engineering Mechanics
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

D/(D + d)
2D/(D - d)
2D/(D + d)
D/(D - d)

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

β/2
45° + β/2
30° + β/2
60° + β/2

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Engineering Mechanics
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

cosecθ
cosθ
tanθ
sinθ

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MORE MCQ ON Engineering Mechanics

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