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Theory of Machine

Theory of Machine
Pulley in a belt drive acts as

Turning pair
Rolling pair
Sliding pair
Cylindrical pair

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Theory of Machine
Which gear train is used for higher velocity ratios in a small space?

Reverted gear train
Simple gear train
Epicyclic gear train
Compound gear train

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Theory of Machine
The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)

ω² × OQ cosθ
ω² × OQ
ω² × OQ tanθ
ω² × OQ sinθ

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Theory of Machine
V-belts are usually used for

None of these
Long drives
Short drives
Long and short drives

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Theory of Machine
Which of the following mechanism is an approximate straight line motion mechanism?

Watt's mechanism
All of these
Robert's mechanism
Grasshopper mechanism

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Theory of Machine
The primary unbalanced force is maximum _________ in one revolution of the crank.

Four times
Eight times
Twice
Sixteen times

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