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Theory of Machine

Theory of Machine
The moment on the pulley which produces rotation is called

Momentum
Moment of momentum
Torque
Inertia

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Theory of Machine
________ is an inversion of Double slider crank chain.

Reciprocating engine
Coupling rod of a locomotive
Scotch yoke mechanism
Hand pump

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

Maximum
Infinity
Zero
Minimum

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Theory of Machine
The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is

Greater than 2
Equal to 1
Less than 2
Equal to 2

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Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

45 mm
95 mm
Slightly less than 95 mm
Slightly more than 95 mm

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Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

2.22 mm
2.50 mm
2 mm
3.0 mm

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