B-747 PC Oral Prep - Fuel System Exam Questions and Answers
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Course
B-747 PC Oral Prep - Fuel System
Institution
B-747 PC Oral Prep - Fuel System
B-747 PC Oral Prep - Fuel System Exam Questions and Answers
How is center wing tank fuel scavenged? - Answers- CWT fuel is scavenged by 4 jet pumps pumping into main tanks 2 and 3
- Scavenge begins when main tank 2 or 3 fuel quantity decreases to approximately 27,200 kgs
Which cro...
B-747 PC Oral Prep - Fuel System Exam
Questions and Answers
How is center wing tank fuel scavenged? - Answers✓✓- CWT fuel is scavenged by 4 jet pumps
pumping into main tanks 2 and 3
- Scavenge begins when main tank 2 or 3 fuel quantity decreases to approximately 27,200 kgs
Which cross feed valves are controlled by Fuel System Management logic when setting T/O
flaps? - Answers✓✓Crossfeed valves 2 and 3
During the Before Start Procedure, at what center wing tank quantity are you required to select
the center wing pumps on? - Answers✓✓7,700 kgs or more in center wing tank
During the Before Start Procedure in the LCF, at what center wing tank quantity are you
required to select the center wing pumps on? - Answers✓✓17,000 lbs or more in the center wing
tank
Main tank 2 and 3 override/jettison pumps can operate to a standpipe level of approximately
______kgs (-400), ______ (LCF), and ______ kgs (-800) of fuel remaining in each tank? -
Answers✓✓- 3,200 kgs (-400)
- 7,000 lbs (LCF)
- 3,450 kgs (-800)
Describe how the fuel quantity indication changes upon termination of fuel jettison. -
Answers✓✓- The fuel to remain quantity indication changes from magenta to white
- The fuel to remain quantity flashes for 5 seconds
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