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Theory of Machine

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

Zero
Minimum
Infinity
Maximum

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Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by

ω² × CO
ω² × QN
ω² × CN
ω² × NO

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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
A ball and a socket forms a

Rolling pair
Turning pair
Screw pair
Spherical pair

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Theory of Machine
When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions.

Opposite
Perpendicular
None of these
Same

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Theory of Machine
The secondary unbalanced force is __________ the primary unbalanced force.

n times
One-half
Two-third
1/n times

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