Automobile Engineering in ME
The rolling resistance is because of the friction between the

Wheel rim and road surface
Wheel rim and tyre
None of the listed here
Tyre and the road surface

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Automobile Engineering in ME
The basic function of the suspension is to

Ensure that the steering wheel can deliver a suitable amount of steering force
Automatically correct the effects of over steering
Absorbs vibration and impact forces from the road surface
Ensure that wheel alignment is not disturbed during driving

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Automobile Engineering in ME
In bias ply tyres

Belts of steel mesh are used in the 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

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