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Theory of Machine

Theory of Machine
A rigid body possesses ________degrees of freedom

Two
Four
Six
One

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

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

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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)

½μWR
²/₃ μWR
μwr
¾μWR

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Theory of Machine
The arrangement is called bevel gearing, when two __________ are connected by gears.

Parallel and non-coplanar shafts
Intersecting and coplanar shafts
Non-intersecting and non-coplanar shafts
Parallel and coplanar shafts

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Theory of Machine
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

Could change or remain unaltered depending on which link is fixed
Will change
Will not occur
Will remain same

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Theory of Machine
A spring controlled governor is said to be unstable when the controlling force

Remains constant for all radii of rotation
Increases as the radius of rotation decreases
Decreases as the radius of rotation increases
Increases as the radius of rotation increases

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