Automobile Engineering in ME
The painting of automobiles is done to

Retain the characteristics of steel for long
All of these
Prevent rust from growing on the body
Improve its external appearance

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Automobile Engineering in ME
An imbalance wheel during vehicle operation

Creates a standing wave
Makes large noise when its heavy point hits the road surface
Bounces vertically or deflects from side to side (as seen from front or rear)
Deflects in the vehicle's longitudinal direction

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