Automobile Engineering in ME
The function of a first compression ring (top ring) is that it

Increases the combustion temperature
Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
Maintains a seal and prevents the fuel leakage
Creates swirl

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

The differential carrier houses differential pinion gears and side gears.
The drive shafts are splined to the differential carrier.
The differential carrier houses differential pinion gears and side gears; each pinion gear meshes with a different side gear.
The left side gear and the differential carrier rotate in constant unison.

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Automobile Engineering in ME
The function of oil control rings is that it

Keeps the cylinder wall lubricated by holding oil in its channel
Maintains a seal and prevents escape of burned gases and oil leakage
Lubricates the cylinder wall by releasing oil from its hole
Prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan

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