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Theory of Machine

Theory of Machine
Which of the following is an open pair?

Lead screw and nut
Journal bearing
Ball and socket joint
Cam and follower

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Theory of Machine
When the sleeve of a Porter governor moves upwards, the governor speed

Increases
Decreases
Remain unaffected
First increases and then decreases

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Theory of Machine
The tendency of a body to resist change from rest or motion is known as

Resisting force
Mass
Inertia
Friction

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Theory of Machine
Hart mechanism has

Twelve links
Four links
Six links
Eight links

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Theory of Machine
When the crank is at the inner dead center, in a reciprocating steam engine, then the acceleration of the piston will be

ω²r. (n - 1)/n
ω²r. (n + 1)/n
ω²r. n/(n - 1)
ω²r. n/(n + 1)

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Theory of Machine
Two systems shall be dynamically equivalent when

All of these
The mass of two are same
G. of two coincides
M.I. of two about an axis through e.g. is equal

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