Fuel for the APU is drawn from which tank via which pump?

• A. The right collector tank via dedicated APU pump
• B. The left collector tank via dedicated APU fuel pump
• C. The center tank via a shared pump
• D. External power cart supply

Answer: (B)

Fuel for the APU is provided from the left collector tank through a dedicated APU fuel pump. This setup gives the APU its own, reliable fuel supply independent of the engine fuel pumps, ensuring the APU can start and operate reliably even if the engines aren’t drawing fuel. The left collector tank is the designated source for APU fuel on this aircraft, while other tanks serve engines or other systems. An external power cart supplies electrical power, not fuel, so it doesn’t feed the APU.