Automobile Engineering in ME
The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as

Auto ignition
Supercharging
Scavenging
Detonation

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Automobile Engineering in ME
A worm gear is used as the pinion for the rack and pinion type of steering gearbox, because it

Makes the steering more responsive
Improves steering comfort when steering wheel is turned to effect small changes in the direction of forward motion
Allows the steering wheel to be turned by a greater amount when steering
Reduces the amount of kickback for large steering angles

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