Quiz: What is a ‘top-dead-center’ (TDC) in relation to engine oper September 20, 2025 by Alex Turner What is a ‘top-dead-center’ (TDC) in relation to engine operation? Discover more about Vehicle Engine and Automobile at our home page. A) The position of the piston at its highest point in the cylinder. B) The point where fuel is injected into the combustion chamber. C) The moment when the exhaust valves open during the cycle. D) The position of the crankshaft at its lowest point. Submit Answer
