Briefly explain the construction of a petrol engine.

1 Answer

Answer :

A petrol engine consists of an air tight piston fitted inside a cylinder. The piston can move

smoothly inside the cylinder. The cylinder has two valves – an inlet valve and an outlet

valve. It has a spark plug. The piston is connected to a crankshaft. The engine is linked

with a carburetor where air and petrol are mixed in proper proportion before letting into the

cylinder.

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