Automobile Engineering in ME
The combustion process in a Diesel engine is a

Adiabatic process
Constant pressure process
Constant volume process
Constant temperature process

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Automobile Engineering in ME
An imbalance wheel during vehicle operation

Creates a standing wave
Deflects in the vehicle's longitudinal direction
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)

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