PSA Airlines Canadair Regional Jet Systems (PSA-CRJ) Practice Exam

What is the rated output of the APU generator?

1. 30 kVa, 35,000 feet

2. 40 kVa, 41,000 feet

3. 50 kVa, 30,000 feet

4. 20 kVa, 25,000 feet

The correct answer is: 40 kVa, 41,000 feet

The rated output of the APU (Auxiliary Power Unit) generator is indeed 40 kVa at a maximum altitude of 41,000 feet. This specification is significant as it indicates the power capacity the APU can provide under these conditions, ensuring that critical systems onboard receive adequate electrical power while the aircraft is not in flight or during ground operations. The APU plays a crucial role in supplying power to various avionics, lighting, and other essential systems, which is vital for the safety and operation of the aircraft. Understanding rated outputs like this is important for flight crews and maintenance personnel, as it provides insight into the limitations and capabilities of the APU in providing power in various phases of operations and altitudes. This affects everything from pre-flight checks to potential power management strategies during emergencies or auxiliary operations.