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

Is it possible to heat both engine cowls using just one engine?

1. Yes

2. No

3. Only if the second engine is off

4. Only during specific flight phases

The correct answer is: No

The correct choice indicates that it is not possible to heat both engine cowls using just one engine due to the design of the aircraft systems. In the Canadair Regional Jet, each engine operates independently, and the heating systems for the engine cowls are specifically tied to their respective engines. When one engine is running, it generates heat and the associated cowl heating system operates for that engine. The heating system for the second engine relies on that engine being operational. Consequently, if one engine is shut down, the system associated with it will not function, and there will be no heat generated for its cowling. This independence of the engine systems ensures that operations can be conducted safely and effectively, but it also means that if one engine is not operating, the respective systems for that engine cannot assist in heating the other engine's cowling.