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Theory of Machine

Theory of Machine
The purpose of a link is to

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

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

Sliding
Turning
Rolling
Screw

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Theory of Machine
The brake commonly used in railway trains is

Internal expanding brake
Band brake
Shoe brake
Band and block brake

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Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

90 RPM
100 RPM
80 RPM
data are insufficient

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)

μ W R cosecα
(1/2) μ W R cosecα
(3/4) μ W R cosecα
(2/3) μ W R cosecα

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

Balanced by secondary forces
Balanced completely
Not balanced
Balanced partially

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