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Engineering Mechanics

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

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

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Engineering Mechanics
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

MS/5
None of these
MS/4
MS/3

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Engineering Mechanics
The unit of angular velocity is

m/min
Revolutions/min
Both (B) and (C)
rad/s

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Engineering Mechanics
The linear velocity of a body rotating at ω rad/s along a circular path of radius r is given by

ω².r
ω.r
ω/r
ω²/r

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Engineering Mechanics
The maximum velocity of a particle moving with simple harmonic motion is

ω2r
ωr
ω
ω/r

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Engineering Mechanics
The impact between two lead spheres is approximately equal to an __________ impact.

None of these
Solid
Elastic
Inelastic

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