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

Which engine temperature is monitored by the N1 gauge in the CRJ-700?

1. Rotor temperature

2. Fan temperature

3. Single stage fan temperature

4. Compressor temperature

The correct answer is: Single stage fan temperature

The N1 gauge in the CRJ-700 specifically monitors the rotational speed of the engine's fan and indicates the performance of the fan section of the engine, which is why the option indicating single stage fan temperature is considered correct. The N1, or the low-pressure spool, is a critical part of engine performance as it reflects the operational status of the fan blades that are responsible for generating thrust. While there are various temperature readings collected by different gauges in the aircraft, the N1 gauge is specifically tied to the performance of the fan stage, not the rotor or compressor sections. Understanding this focus is essential for pilots and maintenance personnel, as the N1 reading is a critical parameter in ensuring optimal engine operation and safety during flight.