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Engineering Mechanics

Engineering Mechanics
The velocity ratio for the third system of pulleys is

n²
2n - 1
2n
n

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Engineering Mechanics
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is

mr²/4
mr²/2
mr²/8
mr²/6

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Engineering Mechanics
The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be

2r/3
r/2
3r/2
r/A

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Engineering Mechanics
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

0.5 Iω
Iω
Iω2
0.5 Iω2

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Engineering Mechanics
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)

2π/ω
2π × ω
π/ω
ω/2π

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Engineering Mechanics
The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is

D/(d₁ - d₂)
2D/(d₁ + d₂)
2D/(d₁ - d₂)
D/(d₁ + d₂)

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MORE MCQ ON Engineering Mechanics

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