In a four-stroke aircraft engine, the crankshaft completes how many revolutions per power cycle?

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Multiple Choice

In a four-stroke aircraft engine, the crankshaft completes how many revolutions per power cycle?

Explanation:
A four-stroke cycle requires two complete turns of the crankshaft. The cycle consists of four strokes—intake, compression, power, and exhaust—and each stroke spans 180 degrees of crankshaft rotation. Four strokes × 180 degrees = 720 degrees, which is two full revolutions of the crankshaft. So the crankshaft completes two revolutions per power cycle. In a multi-cylinder engine, each cylinder still goes through its cycle every two revolutions, with the firing order staggered for smooth operation.

A four-stroke cycle requires two complete turns of the crankshaft. The cycle consists of four strokes—intake, compression, power, and exhaust—and each stroke spans 180 degrees of crankshaft rotation. Four strokes × 180 degrees = 720 degrees, which is two full revolutions of the crankshaft. So the crankshaft completes two revolutions per power cycle. In a multi-cylinder engine, each cylinder still goes through its cycle every two revolutions, with the firing order staggered for smooth operation.

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