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Theory of Machine

Theory of Machine
In a Hartnell governor, the compression of the spring is __________ the lift of the sleeve.

None of these
Less than
Equal to
Greater than

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Theory of Machine
A Porter governor is a

Dead weight governor
Pendulum type governor
Inertia governor
Spring loaded governor

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Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

2.22 mm
2 mm
2.50 mm
3.0 mm

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Theory of Machine
In which of the following type of gear train the first gear and the last gear are co-axial.

Simple gear train
None of the listed here
Reverted gear train
Compound gear train

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Theory of Machine
The unbalanced primary forces in a reciprocating engine are

Balanced partially
Balanced by secondary forces
Balanced completely
Not balanced

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Theory of Machine
Coriolis component acts

Somewhere in between above two
Perpendicular to sliding surfaces
None of these
Along sliding surfaces

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