Where is the bulk fuel temperature sensor located?

Where is the bulk fuel temperature sensor located?

• A. Right Wing tank
• B. Left Wing tank
• C. Center Tank
• D. Fuselage sump

Answer: (A)

The thing this question tests is where the system reads the bulk fuel temperature to feed the fuel management and engine control with an accurate, representative temperature. In the CRJ-550, the bulk fuel temperature sensor is placed in the right wing tank. This location is chosen because it provides a representative sample of the fuel that is routed to the engines, so the temperature reading reflects what the engines actually see during normal operation. Placing the sensor here helps ensure accurate density compensation for fuel quantity indications and proper fueling metering, while avoiding temperature biases that could come from the center tank environment or from heat sources near the fuselage sump. The fuselage sump isn’t used for bulk fuel temperature measurement, since its role is more about collection and sampling rather than representing the circulating bulk fuel. So, the right wing tank is the correct location because it gives a stable, representative reading for the fuel system’s needs.

The thing this question tests is where the system reads the bulk fuel temperature to feed the fuel management and engine control with an accurate, representative temperature. In the CRJ-550, the bulk fuel temperature sensor is placed in the right wing tank. This location is chosen because it provides a representative sample of the fuel that is routed to the engines, so the temperature reading reflects what the engines actually see during normal operation. Placing the sensor here helps ensure accurate density compensation for fuel quantity indications and proper fueling metering, while avoiding temperature biases that could come from the center tank environment or from heat sources near the fuselage sump. The fuselage sump isn’t used for bulk fuel temperature measurement, since its role is more about collection and sampling rather than representing the circulating bulk fuel. So, the right wing tank is the correct location because it gives a stable, representative reading for the fuel system’s needs.