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Theory of Machine

Theory of Machine
At the nodal point in a shaft, the amplitude for torsional vibration will be

Minimum
Zero
Infinity
Maximum

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Theory of Machine
The motion between a pair which takes place in ____ is known as incompletely constrained motion.

Two directions only
More than one direction
One direction only
None of the listed here

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Theory of Machine
The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in

All of these
Longitudinal vibrations
Torsional vibrations
Transverse vibrations

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Theory of Machine
Transmission of power from the engine to the rear axle of an automobile is by means of

Crown gear
Hooke's joint
Compound gears
Worm and wheel method

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Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.4985/ √δS
0.5615/ √δS
0.571/ √δS
0.6253/ √δS

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Theory of Machine
The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints)

n = 4(l - 1) - 3j
n = (l -1) - j
n = 2(l - 1) - 2j
n = 3(l - 1) - 2j

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