In terms of aircraft systems, what does EGT stand for?

EGT stands for Exhaust Gas Temperature. This measurement is crucial in aviation as it indicates the temperature of the exhaust gases exiting the aircraft's engine. Monitoring EGT is fundamental for ensuring the engine operates within safe thermal limits. High EGT readings can suggest inefficiencies or potential damage, whereas readings that are too low could indicate engine performance issues. Understanding EGT helps pilots and engineers assess engine performance and make informed decisions regarding engine operation and maintenance. This emphasis on engine health and performance highlights the importance of EGT in aircraft systems. Other terms provided in the options, while relevant in different contexts, do not accurately describe a critical measurement used for monitoring engine performance in aviation.