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Theory of Machine

Theory of Machine
In a coupling rod of a locomotive, each of the four pairs is a ________ pair.

Turning
Rolling
Screw
Sliding

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Theory of Machine
A foot step bearing and rotor of a vertical turbine form examples of

Completely constrained motion
Partially constrained motion
Incompletely constrained motion
Successfully constrained motion

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Theory of Machine
According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on A. A triangle

A point
A triangle
Two lines
A straight line

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Theory of Machine
The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called

Radial component
Coriolis component
None of these
Tangential component

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear.

Less
Same
More
None of these

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Theory of Machine
In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)

(S₁ - S₂) / 2h
(S₁ + S₂) / h
(S₁ - S₂) / h
(S₁ + S₂) / 2h

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