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Theory of Machine

Theory of Machine
In S.H.M., acceleration is proportional to

Displacement
Rate of change of velocity
All of these
Velocity

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Theory of Machine
The velocity of the rubbing surface __________ with the distance from the axis of the bearing.

None of these
Remain same
Increases
Decreases

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Theory of Machine
The periodic time is given by (where ω = Angular velocity of the particle in rad/s)

ω/2π
2π/ω
π/ω
ω × 2π

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Theory of Machine
Sense of tangential acceleration of a link

Is opposite to that of velocity
Is perpendicular to that of velocity
Is same as that of velocity
Could be either same or opposite to velocity

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Theory of Machine
The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

Both (A) and (B)
None of these
0° and 90°
180° and 360°

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Theory of Machine
When a body is subjected to transverse vibrations, the stress induced in a body will be

Tensile stress
Bending stress
Compressive stress
Shear stress

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