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Engineering Mechanics

Engineering Mechanics
The range of a projectile is maximum, when the angle of projection is

30°
60°
45°
90°

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Engineering Mechanics
The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.

Less than
Greater than
None of these
Equal to

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Engineering Mechanics
The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)

2π. √(kG² + h²/gh)
1/2π. √(kG² + h²/gh)
2π. √(gh/kG² + h²)
1/2π. √(gh/kG² + h²)

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Engineering Mechanics
The bodies which rebound after impact are called

Inelastic bodies
Neither elastic nor inelastic bodies
Elastic bodies
None of these

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

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Engineering Mechanics
The ratio of limiting friction and normal reaction is known as

Sliding friction
Coefficient of friction
Angle of friction
Angle of repose

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MORE MCQ ON Engineering Mechanics

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