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Theory of Machine

Theory of Machine
Pulley in a belt drive acts as

Sliding pair
Rolling pair
Cylindrical pair
Turning pair

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Theory of Machine
In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to

x₁/x₂
log(x₁/x₂)
loge(x₁/x₂)
log(x₁.x₂)

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Theory of Machine
The stress induced in a body will be shear stress, when it is subjected to

None of these
Torsional vibrations
Transverse vibrations
Longitudinal vibrations

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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.

None of these
Perpendicular
Opposite
Same

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Theory of Machine
When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be

Unstable
Hunt
Isochronous
Stable

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Theory of Machine
The length of a simple pendulum which gives the same frequency as the compound pendulum, is

(kG² + l₁²)/ l₁
(kG + l₁²)/ l₁
kG² + l₁
kG + l₁

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