Machine Design
For crank shaft bearings, the ratio of the length of the journal to its diameter is_________.

None of these
Less than unity
Equal to 1
Greater than unity

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Machine Design
In hydrostatic bearings

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
Grease is used for lubrication

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