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Theory of Machine

Theory of Machine
A slider crank chain consists of following numbers of turning and sliding pairs

4, 0
1, 3
2, 2
3, 1

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Theory of Machine
The critical speed of a shaft depends upon its

Mass and stiffness
Mass
Stiffness and eccentricity
Stiffness

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Theory of Machine
Peaucellier’s mechanism has

Twelve links
Four links
Six links
Eight links

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Theory of Machine
The advantage of the piston valve over the slide valve is that in the former case

Both wear and power absorbed are low
Wear is less
Power absorbed is less
The pressure developed being high provides tight sealing

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Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

EC S/2
2ECS²
2ECS
2E²CS

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Theory of Machine
When a point at the end of a link moves with constant angular velocity, its acceleration will have

Radial component only
Radial and tangential components both
Coriolis component only
Tangential component only

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