Machine Design
The temperature at which the new grains are formed in the metal is known as

Recrystallization temperature
Lower critical temperature
Upper critical temperature
None of these

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Machine Design
In a hydrodynamic lubricated bearing

There is a thin film of lubricant between the journal and the bearing
The lubricant is forced between the journal and the bearing, by external pressure
There is no lubricant between the journal and the bearing
There is a thick film of lubricant between the journal and the bearing

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