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Theory of Machine

Theory of Machine
The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.

Difference
Ratio
Sum
Product

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Theory of Machine
A circle passing through the pitch point with its center at the center of cam axis is known as

Pitch circle
Outer circle
Prime circle
Base circle

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Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Equal to
Greater than
None of these
Less than

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Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

0, and less than coV
0, 0
cor, 0
0, and more than co2r

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Theory of Machine
In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as

Critical damping ratio
Damping factor
Magnification factor
Logarithmic decrement

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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.

Body contact
Line or point contact
None of these
Surface contact

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