Automobile Engineering in ME
A three way catalytic converter

Removes CO, HC, and NO₂ from the exhaust gases passing through it
Burns fuel vapour gases
Reduces N₂, H₂O, and CO₂ emission levels
Re-circulates exhaust gases

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

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Automobile Engineering in ME
The main function of the tread pattern on tyre is that

The crests between the tread grooves absorb road noise
The tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating
The tread pattern protects the tyre's inner carcass from small stones and pieces of glass
In wet conditions, the tread grooves expel water that is drawn between the tyre and road surface

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