What information is not processed by the PMU according to the specifications?

The correct answer is that fuel quantity is not processed by the PMU (Power Management Unit) according to the specifications. The PMU is designed primarily to manage the engine's performance and ensure optimal efficiency. It processes various critical parameters such as cockpit differential pressure, torque, and raw inlet turbine temperature (RITT). These parameters are essential for monitoring engine conditions, managing fuel flow, and ensuring the engine operates within safe limits.

In contrast, fuel quantity is monitored through a separate system that manages fuel levels and distribution, which is outside the PMU's scope. Thus, while the other parameters are directly relevant to the PMU's function of controlling and optimizing engine performance, fuel quantity falls under the monitoring of fuel systems. This distinction is crucial for understanding the roles and functions of different components within the aircraft's systems.