AVM Powerplant Practice Test

The jet nozzle sits in the exhaust section of a turbojet. After the air has been compressed, fuel burned, and the resulting high-energy gases pass through the turbine, they enter the nozzle where they expand and accelerate as they exit the engine. This acceleration converts the internal energy of the hot gases into thrust. So, the nozzle is at the rear of the engine, in the exhaust path. The diffuser is the inlet that slows and collects air, the combustion chamber is where fuel is burned, and the turbine extracts work from the gases before they reach the exhaust. Some engines use a convergent or convergent-divergent nozzle to optimize performance at different speeds, but the essential location is the exhaust section.