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Theory of Machine

Theory of Machine
The approximate straight line mechanism is a

6 bar linkage
3 bar linkage
Four bar linkage
8 bar linkage

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Theory of Machine
To connect two parallel and coplanar shafts the following type of gearing is used

Spur gear
None of the listed here
Spiral gear
Bevel gear

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

Minimum
Maximum
Infinity
Zero

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Theory of Machine
A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________ the angle of friction.

Equal to
Less than
Greater than
None of these

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Theory of Machine
In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

0.6
0.8
0.4
0.2

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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

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

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