In which step of the four-stroke engine cycle does the spark plug initiate the combustion reaction?

Chemistry

2 answers:

Doss [256]2 years ago

8 0

<h2>Answer:</h2>

Combustion stroke is the step at which four-stroke engine cycle sparks plug initiate the combustion reaction.

<h3>Explanation:</h3>

Combustion or ignition is known as the burning of fuel in the presence of air.
Combustion stroke is the third stroke in four-stroke engine .
In this stroke the compressed air-fuel mixture is sparked by a spark plug (in a gasoline engine) and by heat generated by high compression (diesel engines).

Dominik [7]2 years ago

4 0

ANSWER
Power stroke

EXPLANATION

At the power stroke stage, the piston is forced to move down by the expanding gases as both intake valve and exhaust valve are closed.
A spark from the spark plug contributes to ignition of the compressed fuel air mixture to released energy to perform work.

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