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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
The factional torque for square thread at the mean radius r while raising load W is given by

T = W.r tanα
T = W.r tanφ
T = W.r tan(φ - α)
T = W.r tan(φ + α)

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Theory of Machine
When a point at the end of a link moves with constant angular velocity, its acceleration will have

Radial component only
Tangential component only
Radial and tangential components both
Coriolis component only

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Theory of Machine
When the axes of the first and last wheels are coaxial, then the train is known as

Epicyclic gear train
Simple train of wheels
Compound train of wheels
Reverted gear train

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Theory of Machine
In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed

Inertia governor
Pickering governor
Wilson Hartnell governor
Hartung governor

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Theory of Machine
Peaucellier’s mechanism has

Eight links
Twelve links
Six links
Four links

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