Where is the exhaust nozzle located and what is its purpose?

• A. Located at the rear of the exhaust duct and provides the final velocity boost to the gases leaving the exhaust
• B. Located at the front of the engine and mixes fuel
• C. Located at mid-engine and cools exhaust
• D. Located in the intake and increases air pressure

Answer: (A)

The exhaust nozzle is located at the rear of the engine's exhaust duct, and its job is to give the hot, high‑pressure gases their final push to speed them up as they exit. This acceleration converts more of the exhaust’s energy into thrust, helping push the aircraft forward. Some engines use a fixed or variable-area nozzle to optimize performance across different speeds and altitudes.

The other descriptions mix up what the nozzle does or where it sits: front-location with fuel mixing refers to the fuel system and combustion process, not the nozzle; mid-engine cooling of exhaust isn’t the nozzle’s role; and intake-area to boost air pressure describes the compressor and intake system, not the exhaust nozzle.