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Theory of Machine

Theory of Machine
The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove)

secβ
sinβ
cosβ
cosecβ

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Theory of Machine
In S.H.M., the velocity vector w.r.t. displacement vector

Lags by 90°
Leads by 180°
Leads by 90°
Are in phase

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Theory of Machine
When the two elements of a pair have __________ when in motion, it is said to a lower pair.

None of these
Surface contact
Body contact
Line or point contact

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Theory of Machine
Critical damping is a function of

Mass and natural frequency
Mass and stiffness
Mass and damping coefficient
Damping coefficient and natural frequency

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Theory of Machine
Cylindrical cams can be classified as

None of these
Tangent
Reciprocating
Circular

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Theory of Machine
The power transmitted by a belt is maximum when the maximum tension in the belt is _________ of centrifugal tension.

Double
Two-third
One-third
Three times

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