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Theory of Machine

Theory of Machine
For fluctuating loads, well suited bearing is

Ball bearing
Roller bearing
Needle roller bearing
Thrust bearing

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Theory of Machine
The frequency of oscillation of a torsional pendulum is

r/2πk. √(l/g)
2πk/r. √(g/l)
2πr/k. √(g/l)
r/2πk. √(g/l)

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Theory of Machine
The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the

Base circle
Pitch circle
Pitch curve
Prime circle

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Theory of Machine
The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called

None of these
Coriolis component
Tangential component
Radial component

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Theory of Machine
When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions.

Opposite
None of these
Same
Perpendicular

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

Increases
Remain unaffected
Decreases
First increases and then decreases

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