Machine Design
The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for

Fullering and caulking
Ease of manufacture
Reducing stress concentration
Safety

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Machine Design
The elasticity is the property of a material which enables it to

Regains its original shape after deformation when the external forces are removed
Retain deformation produced under load permanently
Resists fracture due to high impact loads
Draw into wires by the application of a tensile force

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Machine Design
In hydrodynamic bearings

The oil film is maintained by supplying oil under pressure
The oil film pressure is generated only by the rotation of the journal
Do not require external supply of lubricant
Grease is used for lubrication

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