Automobile Engineering in ME
An imbalance wheel during vehicle operation

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

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Automobile Engineering in ME
The function of a first compression ring (top ring) is that it

Maintains a seal and prevents the fuel leakage
Creates swirl
Increases the combustion temperature
Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber

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