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Theory of Machine

Theory of Machine
A pulley and belt in a belt drive form a

Turning pair
Sliding pair
Cylindrical pair
Rolling pair

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

180°
90°
0°
360°

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Theory of Machine
The critical speed of a shaft depends upon its

Stiffness and eccentricity
Stiffness
Mass
Mass and stiffness

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Theory of Machine
The secondary unbalanced force is maximum __________ in one revolution of the crank.

Eight times
Two times
Sixteen times
Four times

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Theory of Machine
A Porter governor is a

Dead weight governor
Spring loaded governor
Pendulum type governor
Inertia governor

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Theory of Machine
In a coupling rod of a locomotive, each of the four pairs is a ________ pair.

Turning
Screw
Sliding
Rolling

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