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

Which component is critical for transferring fuel from the wing tank to the center tank?

1. Fuel Pump

2. Transfer Ejector Valve

3. Gravity Feed System

4. Fuel Level Sensor

The correct answer is: Transfer Ejector Valve

The Transfer Ejector Valve is a crucial component for moving fuel from the wing tank to the center tank in the PSA Airlines Canadair Regional Jet Systems. This valve operates by using the Venturi principle, which relies on the high-speed flow of fuel through the ejector to create a vacuum that draws fuel from the wing tanks. This mechanism is essential for maintaining balanced fuel loads and optimizing the aircraft's center of gravity during flight. The other components mentioned, while important to overall fuel system functionality, do not specifically facilitate the transfer of fuel from the wing tank to the center tank. For instance, the fuel pump is responsible for delivering fuel under pressure but does not directly manage the transfer process. The gravity feed system may play a role in fuel distribution under certain circumstances, but it does not actively transfer fuel from the wing to the center tank like the ejector valve does. Fuel level sensors are important for monitoring fuel quantities but do not influence the movement of fuel between tanks. Thus, the Transfer Ejector Valve is the key component in this fuel transfer process.