Machine Design
The resultant axial load on a bolt depends on

Initial tension
Relative elastic yielding (springness) of the bolt and the connected member
External load applied
All of these

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
In oilness 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 required to be applied after some intervals

ANSWER DOWNLOAD EXAMIANS APP