Quiz: What does the term ‘four-stroke cycle’ refer to in engine op June 19, 2025 by Alex Turner What does the term ‘four-stroke cycle’ refer to in engine operation? Discover more about Vehicle Engine and Automobile at our home page. A) A sequence of four distinct strokes in an engine’s piston movement B) A type of fuel used in high-performance engines C) A method of turbocharging an engine for better performance D) A design feature that reduces engine noise Submit Answer