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Theory of Machine

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

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

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Theory of Machine
When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to

π/2
π
One
Zero

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Theory of Machine
A circle passing through the pitch point with its center at the center of cam axis is known as

Pitch circle
Outer circle
Base circle
Prime circle

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Theory of Machine
The partial balancing means

All of these
Balancing partially reciprocating masses
Best balancing of engines
Balancing partially revolving masses

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Theory of Machine
A watt's governor can work satisfactorily at speeds from

100 to 200 r.p.m.
80 to 100 r.p.m.
60 to 80 r.p.m.
200 to 300 r.p.m.

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Theory of Machine
The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is

(kG² + h²)/h
h/(kG² + h²)
(kG² + h²)/h²
h²/(kG² + h²)

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