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Theory of Machine

Theory of Machine
The frequency of oscillation at compared to earth will be

2.44 times more
2.44 times less
6 times less
6 times more

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Theory of Machine
Which of the following is an inversion of Single slider crank chain?

Elliptical trammel
Rotary engine
Oldham’s coupling
Beam engine

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

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Theory of Machine
The dynamic friction is the friction experienced by a body, when the body

Is at rest
Is in motion
None of these
Just begins to slide over the surface of the other body

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Theory of Machine
The acceleration of the particle moving with simple harmonic motion is _________ at the mean position.

None of these
Minimum
Zero
Maximum

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Theory of Machine
In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

Equal to
Independent of
Directly proportional to
Inversely proportional to

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