Automobile Engineering in ME
It is necessary to maintain the valve clearances as they

Make the crankshaft turn smoothly
Reduce the resistance to sliding that occurs between the cam and the tappet
Increase the speed at which the valves move up and down
Allow for lengthening of the valves owing to the heat of combustion

ANSWER DOWNLOAD EXAMIANS APP

Automobile Engineering in ME
The composition of the electrolyte in a fully charged battery is that

The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight
The electrolyte is pure distilled water
The electrolyte is pure sulphuric acid
The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight

ANSWER DOWNLOAD EXAMIANS APP