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Theory of Machine

Theory of Machine
For fluctuating loads, well suited bearing is

Roller bearing
Needle roller bearing
Thrust bearing
Ball bearing

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Theory of Machine
The working depth of a gear is the radial distance from the

Top of a tooth to the bottom of a tooth
Addendum circle to the clearance circle
Pitch circle to the top of a tooth
Pitch circle to the bottom of a tooth

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Theory of Machine
The danger of breakage and vibration is maximum

Near the critical speed
Above the critical speed
None of these
Below the critical speed

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Theory of Machine
Cam size depends upon

Pitch circle
Outer circle
Prime circle
Base circle

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Theory of Machine
The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as

Successfully constrained motion
Completely constrained motion
Incompletely constrained motion
None of these

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Theory of Machine
The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball, and M = Mass on the sleeve)

c (m + M) g
c (m - M) g
c/(m - M) g
c/(m + M) g

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