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Theory of Machine

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

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

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Theory of Machine
The driving and driven shafts connected by a Hooke's joint will have equal speeds, if

cosθ = sinα
cotθ = cosα
sinθ = ± tanα
tanθ = ± cosα

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Theory of Machine
The sense of Coriolis component is such that it

Lags the sliding velocity vector by 90°
Leads the sliding velocity vector by 90°
Leads the sliding velocity vector by 180°
Is along the sliding velocity vector

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

Belt and pulley
Sliding pair
Screw pair
Turning pair

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Theory of Machine
The velocity of the rubbing surface __________ with the distance from the axis of the bearing.

None of these
Increases
Remain same
Decreases

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Theory of Machine
According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on A. A triangle

A straight line
A triangle
A point
Two lines

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