Machine Design
The radial distance from the __________ to the clearance circle is called working depth.

Dedendum circle
Pitch circle
None of these
Addendum circle

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Machine Design
When a belt drive is transmitting maximum power,

Effective tension is equal to centrifugal tension
Driving tension on slack side is equal to centrifugal tension
Driving tension on tight side is twice the centrifugal tension
Effective tension is half of centrifugal tension

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Machine Design
In oilness bearings

The oil film is maintained by supplying oil under pressure
Grease required to be applied after some intervals
The oil film pressure is generated only by the rotation of the journal
Do not require external supply of lubricant

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