Automobile Engineering in ME
A three way catalytic converter

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

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Automobile Engineering in ME
Which one of the following statements correctly describes the construction of a planetary gear type differential?

The internal gear is fixed to the planetary gear.
The six planetary pinions rotate in constant mesh with the internal gears.
Each planetary pinion gear meshes with both the central gear and the internal gear.
One drive shaft is splined to the central gear and the other to the planetary gear.

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