Automobile Engineering in ME
The engine oil level should be checked

While the engine is running at high idle speed
A few minutes after the ignition switch is turned off
Immediately after the ignition switch is turned off
While the engine is running

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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

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

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