Why must you close the left engine’s inboard nacelle door prior to operating the APU?
A. Because it forms part of the APU exhaust ducting
B. Because it forms part of the APU intake ducting
C. Because of the location of the APU exhaust
D. Because of the location of the APU intake
Answer:C
Why must you close the left engine’s inboard nacelle door prior to operating the APU?
A. Because it forms part of the APU exhaust ducting B. Because it forms part of the APU intake ducting C. Because of the location of the APU exhaust D. Because of the location of the APU intake