Quiz: What does the term ‘compression ratio’ refer to in an intern April 13, 2025 by Alex Turner What does the term ‘compression ratio’ refer to in an internal combustion engine? Discover more about Vehicle Engine and Automobile at our home page. A) The ratio of the maximum to minimum volume in the combustion chamber. B) The ratio of fuel to air mixture in the engine. C) The number of revolutions per minute the engine can achieve. D) The amount of horsepower produced by the engine. Submit Answer