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Theory of Machine

Theory of Machine
The purpose of a link is to

All of these
Guide other links
Act as a support
Transmit motion

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Theory of Machine
Efficiency of a screw jack is given by

tanα/tan (α - φ)
tan (α + φ)/tanα
tanα/tan (α +φ)
tan (α - φ)/tanα

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Theory of Machine
If the pressure angle is __________, a reciprocating follower will jam in its bearings.

Large
Small
Too small
Too large

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Theory of Machine
The motion of a shaft in a circular hole is an example of

Successfully constrained motion
Incompletely constrained motion
Completely constrained motion
None of these

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Theory of Machine
Torsional vibrations are said to occur when the particles of a body moves

Perpendicular to its axis
Parallel to its axis
In a circle about its axis
None of these

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Theory of Machine
Which of the following has sliding motion?

Crank
Cross-head
Crank pin
Connecting rod

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