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Theory of Machine

Theory of Machine
For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

secφ
cosφ
cosecφ
sinφ

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Theory of Machine
A ball and a socket forms a

Rolling pair
Turning pair
Spherical pair
Screw pair

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Theory of Machine
In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be

Isochronous
More sensitive
Less sensitive
Unaffected of sensitivity

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Theory of Machine
The size of cam depends upon

Prime circle
Pitch circle
Pitch curve
Base circle

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Theory of Machine
A rigid body possesses ________degrees of freedom

Two
One
Four
Six

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

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