What is the maximum EGT range for the APU based on RPM?

The maximum EGT (Exhaust Gas Temperature) range for the APU (Auxiliary Power Unit) based on RPM is correctly stated as 692-1038 degrees Celsius. This range is essential for ensuring the APU operates within safe thermal limits while providing electrical power and bleed air for the aircraft's systems.

Operating within this temperature range is vital to prevent overheating, which could lead to damage to the engine components or reduced efficiency of the APU. Regular monitoring of the EGT helps pilots and ground crew ensure that the APU is functioning correctly and that there are no underlying issues that could compromise performance or safety.

Other temperature ranges provided in the options are either too low or do not encompass the maximum operational limit for the APU, leading to constraints that could affect the effective use of the APU. Understanding these limitations is crucial for pilots and maintenance personnel while operating or servicing the APU.