Automobile Engineering in ME
In radial tyres

None of these
Inner tubes are always used
All plies run parallel to one another and vertical to tyre bead
One ply layer runs diagonally one way and another layer runs diagonally the other way

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Automobile Engineering in ME
The purpose of a balancer shaft is to

Adjusts the timing of the intake and exhaust valve openings
Reduce vibrations caused by the crankshaft rotation
Balance the timing in the movement of the two groups of pistons
Increase inertia force of the rotating crankshaft

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Automobile Engineering in ME
When the front wheels of a vehicle are locked during braking, then

Rear tyres skid across the road surface, and the vehicle spins around
Front tyres skid across the road surface, and the vehicle spins around
Stopping distance becomes extremely long
Driver loses control over the steering, and the vehicle continues moving in its current direction

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