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Theory of Machine

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

Less than
None of these
Same as
More than

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Theory of Machine
Peaucellier’s mechanism has

Six links
Four links
Eight links
Twelve links

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Theory of Machine
When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.

θ
4θ
θ/2
2θ

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Theory of Machine
The height of a Watt's governor is

Directly proportional to speed
Inversely proportional to (speed)²
Directly proportional to (speed)²
Inversely proportional to speed

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Theory of Machine
In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to

Minimize the effect of secondary forces
Minimize the effect of primary forces
To start the locomotive quickly
Have perfect balancing

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Theory of Machine
A Porter governor is a

Inertia governor
Pendulum type governor
Dead weight governor
Spring loaded governor

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