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If a four-cycle engine runs at 3600 RPM, what is the number of sparks per minute required at the spark plug?

Answer :

Final answer:

At 3600 rpm, a four cycle engine requires 1800 sparks per minute at the spark plug because it operates on the principle that one spark is needed for every two revolutions of the engine.

Explanation:

If a four cycle engine runs at 3600 rpm, it completes 3600 revolutions of the crankshaft per minute. Since a four stroke engine requires four strokes of the piston to complete a single cycle—intake, compression, power (or combustion), and exhaust—this means that it completes one cycle every two revolutions. Therefore, for every two revolutions of the engine, there is one spark in the spark plug to ignite the fuel-air mixture during the power stroke. To calculate the number of sparks required per minute:

Number of sparks per minute = (Number of revolutions per minute) / 2

Number of sparks per minute = 3600 rpm / 2

Number of sparks per minute = 1800

So, at 3600 rpm, the engine requires 1800 sparks per minute at the spark plug.

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Rewritten by : Jeany

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