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Theory of Machine

Theory of Machine
If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

90°
180°
0°
360°

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Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be

Critically damped
Under damped
Over-damped
Without vibrations

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Theory of Machine
The frictional torque transmitted by a disc or plate clutch is same as that of

Flat pivot bearing
Flat collar bearing
Truncated conical pivot bearing
Conical pivot bearing

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Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS²
EC S/2
2E²CS
2ECS

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Theory of Machine
For simple harmonic motion of the of follower, a cosine curve represents

Velocity diagram
Acceleration diagram
Displacement diagram
All of these

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Theory of Machine
A kinematic chain is known as a mechanism when

None of these
None of the links is fixed
Two of the links are fixed
One of the links is fixed

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