Quiz: What are the advantages of using a rotary engine compared to September 16, 2025 by Alex Turner What are the advantages of using a rotary engine compared to a conventional piston engine? Discover more about Vehicle Engine and Automobile at our home page. A) Rotary engines are more compact and lighter, providing better power-to-weight ratio. B) Rotary engines have a higher thermal efficiency, resulting in lower fuel consumption. C) Rotary engines produce less noise and vibration than piston engines. D) Rotary engines can operate at higher RPMs without risk of overheating. Submit Answer