Question 28Motor Plants - Assistant Engineer

The correct answer is B) The sequence of events that produce a power pulse. The term "cycle" in the context of engine operation refers to the four-stroke cycle (intake, compression, power, and exhaust) that takes place within the engine cylinders to produce a power pulse. This sequence of events, from the intake of the air-fuel mixture to the exhaust of the combustion products, is considered one complete cycle of the engine's operation. The other options are incorrect because: A) One stroke of a piston is not the complete cycle, as it only represents a single phase of the four-stroke process. C) One rotation of the engine crankshaft does not accurately describe the cyclic nature of the engine's operation, as it takes multiple crankshaft rotations to complete a full four-stroke cycle.