Automobile Engineering in ME
The forced fed lubrication system means that the oil is delivered to the engine by

The pressure created by the oil pump
Splashing action of the crankshaft
None of these
Gravity

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

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

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Automobile Engineering in ME
In bias ply tyres

All plies run parallel to one another
Belts of steel mesh are used in the tyres
All of these
One ply layer runs diagonally one way and another layer runs diagonally the other way

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