Theory of Machine
In a simple train of wheels, the velocity ratio __________ the intermediate wheels.

Either A or B
Depends upon
Is independent of
None of these

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Theory of Machine
A body is said to be under forced vibrations, when

A body vibrates under the influence of external force
No external force acts on a body, after giving it an initial displacement
There is a reduction in amplitude after every cycle of vibration
None of these

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Theory of Machine
In gears, interference takes place when

Gear teeth are undercut
Pitch of the gears is not same
The tip of a tooth of a mating gear digs into the portion between base and root circles
Gears do not move smoothly in the absence of lubrication

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