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Theory of Machine

Theory of Machine
A universal joint is an example of

Lower pair
Higher pair
Sliding pair
Rolling pair

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Theory of Machine
The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship.

Vertically and parallel
Vertically and perpendicular
Horizontally and perpendicular
Horizontally and parallel

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Theory of Machine
A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the

Clearance between journal and bearing
Radius of journal
Angular velocity of journal
Magnitude of the forces on journal

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Theory of Machine
The size of cam depends upon

Base circle
Prime circle
Pitch curve
Pitch circle

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Theory of Machine
A point on a link connecting double slider crank chain traces a

Parabola
Hyperbola
Circle
Ellipse

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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°
90°
360°
0°

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