Automobile Engineering in ME
The cam shaft in an engine is always mounted

None of these
Perpendicular to the crankshaft
Parallel to the crankshaft
Inclined to the crankshaft

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Automobile Engineering in ME
The drive-shafts are connected to the differential and wheel hubs through universal joints because the universal joints

Compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.
Absorb the vibrations transferred from the surface of the road
Absorb any difference in speed between the left and right wheels when the vehicle is turning
None of these

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