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Theory of Machine

Theory of Machine
Rectilinear motion of piston is converted into rotary by

Cross head
Slider crank
Connecting rod
Gudgeon pin

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Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

One fourth of the first one
Same as the first one
One and a half times the first one
Four times the first one

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Theory of Machine
A spring controlled governor is found unstable. It can be made stable by

Increasing the ball mass
Decreasing the ball mass
Decreasing the spring stiffness
Increasing the spring stiffness

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is(Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing)

¾μWR
μwr
²/₃ μWR
½μWR

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Theory of Machine
Carnot cycle is

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

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Theory of Machine
For the same lift and same angle of ascent, a smaller base circle will give

A large value of pressure angle
Something else
There is no such relation with pressure angle
A small value of pressure angle

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