Machine Design
When the belt speed increases

Power transmitted remains the same
Power transmitted increases to a maximum value and then decreases
Power transmitted decreases
Power transmitted increases

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Machine Design
In oilness bearings

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

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Machine Design
The designation M 33 × 2 of a bolt means

Metric threads with cross-section of 33 mm
Metric threads of 33 mm outside diameter and 2 mm pitch
Metric threads of 33 numbers in 2 cm
Bolt of 33 mm nominal diameter having 2 threads per cm

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Machine Design
When the belt is transmitting maximum power,

The tension in tight side is thrice the centrifugal tension
None of these
The tension in tight side is twice the centrifugal tension
The tension in slack side is equal to the centrifugal tension

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