Automobile Engineering in ME
The gear shift lever requires two separate motions to shift gears, and the first movement

Selects the synchronizer
Operates the clutch
Moves the synchronizer
Meshes the gears

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Automobile Engineering in ME
In bias ply tyres

All plies run parallel to one another
All of these
One ply layer runs diagonally one way and another layer runs diagonally the other way
Belts of steel mesh are used in the tyres

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Automobile Engineering in ME
The function of positive crankcase ventilation (PCV) system is that it

Returns blow by gases from the crankcase to the intake system
Promotes combustion by creating a swirling movement in the air-fuel mixture
Mixes fuel with air
Feeds blow by gases to the exhaust manifold

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