What does Exhaust Gas Temperature (EGT) measure?

What does Exhaust Gas Temperature (EGT) measure?

• A. Temperature Of Exhaust Gases Entering The Turbine
• B. Temperature Of Air Entering The Engine
• C. Temperature Of Exhaust Gases As They Leave The Turbine
• D. Temperature Of Fuel In The Injector

Answer: (C)

Exhaust Gas Temperature is the temperature of the exhaust gases as they exit the turbine section. This reading comes from a sensor in the exhaust path and reflects how hot the combustor burn is and how much heat the turbine is being exposed to as the gas leaves the engine. It’s a key indicator for fuel metering and turbine loading, helping detect overheating or abnormal combustion. In short, it’s not the temperature of air entering the engine, nor the fuel in the injector, nor the exhaust gas temperature before the turbine—it's the temperature of the gases after they have passed through the turbine and are leaving the engine.

Exhaust Gas Temperature is the temperature of the exhaust gases as they exit the turbine section. This reading comes from a sensor in the exhaust path and reflects how hot the combustor burn is and how much heat the turbine is being exposed to as the gas leaves the engine. It’s a key indicator for fuel metering and turbine loading, helping detect overheating or abnormal combustion.

In short, it’s not the temperature of air entering the engine, nor the fuel in the injector, nor the exhaust gas temperature before the turbine—it's the temperature of the gases after they have passed through the turbine and are leaving the engine.