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Theory of Machine

Theory of Machine
Carnot cycle is

a reversible cycle
a semi-reversible cycle
an irreversible cycle
a quasi static cycle

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Theory of Machine
In a simple train of wheels, the velocity ratio __________ the intermediate wheels.

Depends upon
None of these
Either A or B
Is independent of

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Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

0, 0
0, and more than co2r
cor, 0
0, and less than coV

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Theory of Machine
When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion.

Four times
Same
None of these
Two times

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Theory of Machine
The lower pairs are _________ pairs.

Self-closed
Friction closed
None of these
Force-closed

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Theory of Machine
The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is

6 Hz
6π Hz
3π Hz
3 Hz

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