Automobile Engineering in ME
The two kinds of piston rings are

Oil scrapper and oil control rings
Compression and oil control rings
Compression and sliding seal rings
Pressure and sealing rings

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

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

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