Answer / krishna kanth

smaller vehicles like bikes, cars are started with the help
of motors. initialy, motors turn the crank shafttill
sufficient suction pressure is reached. when sufficient
suction pressure is reached, the engine starts to suck the
fuel in and then the cycle begins when the fuel is taken in
and ignited. similarly, for huge engines, instead of
motors, we use starting air. air at a pressure of 10-30 bar
is fed to the engine which is at rest. this air rotates the
engine till it attains sufficient suction pressure. once
the pressure is reached, the cycle starts and it starts
firing.

Answer / yogesh

in big vehicle we talk petrol engine.
first air and fuel are suck in cylinder and ompressed the piston.

in diesel engine.
first air suck in cylinder and in second stroke inject the fuel by fuel injector.

Answer / ravichandra kumbalavati

Piston moves in the same way. In small vehicals we are using gear system were at rest the driving wheel is not in contact with engine reciprocating system. Only when we made contact between them i.e with the help of Clutch then only the vehicals moves.

Answer / sibu das

we use gear system in a vehicle and when a vehical in nutral
position it goes to free shaft which rotates but wheels are
not moving. So when the vehical are in rest then the
pistones are moved.

Answer / guest

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