Question 1077 Deck Safety

The correct answer is A) once each crankshaft revolution. In a two-cycle engine, the combustion process occurs once per crankshaft revolution in each cylinder. This is because the two-cycle engine completes its full cycle (intake, compression, power, and exhaust) in a single crankshaft revolution, unlike a four-cycle engine which requires two crankshaft revolutions to complete the full cycle. The other options are incorrect because B) every other crankshaft revolution would be a four-cycle engine, C) every fourth stroke is not how a two-cycle engine operates, and D) twice each crankshaft revolution would be a four-cycle engine.