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Theory of Machine

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

Cross head
Slider crank
Gudgeon pin
Connecting rod

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Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be

Over-damped
Critically damped
Without vibrations
Under damped

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Theory of Machine
The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

Corners
Inner edge
Outer edge
None of these

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Theory of Machine
Relationship between the number of links (L) and number of pairs (P) is

P = 2L - 2
P = 2L + 4
P = 2L + 2
P = 2L - 4

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Theory of Machine
Which of the following is a lower pair?

Ball and socket i
Cam and follower
Both (A) and (B) above
Piston and cylinder

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Theory of Machine
The lower pairs are _________ pairs.

Friction closed
None of these
Self-closed
Force-closed

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