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Theory of Machine

Theory of Machine
The primary unbalanced force is maximum _________ in one revolution of the crank.

Eight times
Sixteen times
Twice
Four times

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Theory of Machine
The stress induced in a body will be shear stress, when it is subjected to

Longitudinal vibrations
None of these
Torsional vibrations
Transverse vibrations

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is(Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing)

¾μWR
½μWR
²/₃ μWR
μwr

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Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

At
Above
None of these
Below

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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

180°
360°
90°
0°

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Theory of Machine
The frequency of oscillation of a compound pendulum is

2π. √[gh/(kG² + h²)]
(1/2π). √[gh/(kG² + h²)]
(1/2π). √[(kG² + h²)/gh]
2π. √[(kG² + h²)/gh]

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