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Theory of Machine

Theory of Machine
The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.

Same as
Less than
More than
None of these

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Theory of Machine
In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called

None of the listed here
Maximum fluctuation of energy
Coefficient of fluctuation of energy
Fluctuation of energy

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Theory of Machine
The swaying couple is due to the

Partial balancing
Primary unbalanced force
Two cylinders of locomotive
Secondary unbalanced force

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Theory of Machine
The danger of breakage and vibration is maximum

None of these
Below the critical speed
Above the critical speed
Near the critical speed

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Theory of Machine
In a reciprocating steam engine, which of the following forms a kinematic link?

Flywheel and engine frame
Cylinder and piston
Crankshaft and flywheel
Piston rod and connecting rod

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Theory of Machine
In a simple harmonic motion, the velocity vector with respect to displacement vector

Leads by 90°
Is in phase
Leads by 180°
Lags by 90°

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