Automobile Engineering in ME
The problems caused by the wheel imbalance are

Poor acceleration and reduced fuel efficiency
Poor acceleration and hard steering
Steering wheel vibrations and uneven tyre wear
Hard steering and hard ride

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

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

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Automobile Engineering in ME
The function of a second ring is that it is a

Back up oil control ring which will work in place of the bottom ring when it is broken
Compression ring and aids the top ring in sealing and cooling
Back up compression ring which will work in place of the top ring when it is broken
Cushion ring which prevents piston slap and knock

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Automobile Engineering in ME
The sequence in which the force is transmitted through a brake system when the brake pedal is depressed is

Brake pedal, master cylinder, vacuum servo mechanism, brake lines, brake pads
Brake pedal, vacuum servo mechanism, master cylinder, brake lines, brake pads
Brake pedal, master cylinder, brake lines, vacuum servo mechanism, brake pads
Brake pedal, brake lines, vacuum servo mechanism, master cylinder, brake pads

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