B-747 ORAL EXAM 2024
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
What does the Zone System (SYS) Fault Light indicate - ANSWERS--
Temperature zone duct overheat or zone temperature controller fault has occurred
-Master trim air valve failed closed
-Master trim air valve closed and pack air continues to flow
QUESTION 2
Under what conditions would High Pressure (HP) air be used - ANSWERS--
Descent
-Other low power setting operations
QUESTION 3
How would you isolate a bleed air duct section in the event of a bleed duct leak is
detected - ANSWERS-Close the respective isolation valve
Close the engine bleed air valves
END OF
PAGE 1
, B-747 ORAL EXAM 2024
QUESTION 4
What does a bleed duct isolation (ISLN) Valve light indicate - ANSWERS-
Isolation valve position disagrees with switch position
QUESTION 5
The Engine Bleed Air Switches control which valves by system logic, when bleed
air pressure is available - ANSWERS-PRV
HP Bleed Valve
Engine Bleed Air Valve
QUESTION 6
Describe the general function of the pressure regulation valve (PRV) -
ANSWERS-Prevents damage to ducting and equipment downstream by limiting
bleed air pressure
QUESTION 7
END OF
PAGE 2
, B-747 ORAL EXAM 2024
Under what conditions would Intermediate Pressure (IP) air be used - ANSWERS-
High power setting operations
QUESTION 8
With a right duct isolated, how will this affect the hydraulic systems - ANSWERS-
The hydraulic demand pump 4 is turned off
No hydraulic system 3 and 4 reservoir pressure
QUESTION 9
With the EICAS message STARTER CUTOUT 1,2,3,4 shown, will Nacelle Ant-
ice be available for the related engine? - ANSWERS-No
QUESTION 10
With a right duct isolated, how will the affected leading edge flaps extend -
ANSWERS-The right wing LEF operate electrically in the secondary mode
-Expect EICAS message FLAPS PRIMARY
QUESTION 11
END OF
PAGE 3
, B-747 ORAL EXAM 2024
B-747 Oral Question Bank Review
Auto Flight & Flight Instruments - ANSWERS-
QUESTION 12
The outer BANK LIMIT selector applies to which roll mode - ANSWERS-HDG
SEL
QUESTION 13
How do you re-engage the autothrottles when the pitch mode is ALT, V/S or G/S -
ANSWERS-Push the speed switch
QUESTION 14
How do you re-engage the autothrottles when the pitch mode is VNAV _____ or
FLCH SPD, when the Autothrottle flight mode annunciation is blank -
ANSWERS-Cycle the A/T ARM switch to OFF and back to ARM
How do you re-engage the autothrottles when the pitch mode is VNAV _____ or
FLCH SPD - ANSWERS-Cycle the A/T ARM switch to OFF and back to ARM
END OF
PAGE 4
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
What does the Zone System (SYS) Fault Light indicate - ANSWERS--
Temperature zone duct overheat or zone temperature controller fault has occurred
-Master trim air valve failed closed
-Master trim air valve closed and pack air continues to flow
QUESTION 2
Under what conditions would High Pressure (HP) air be used - ANSWERS--
Descent
-Other low power setting operations
QUESTION 3
How would you isolate a bleed air duct section in the event of a bleed duct leak is
detected - ANSWERS-Close the respective isolation valve
Close the engine bleed air valves
END OF
PAGE 1
, B-747 ORAL EXAM 2024
QUESTION 4
What does a bleed duct isolation (ISLN) Valve light indicate - ANSWERS-
Isolation valve position disagrees with switch position
QUESTION 5
The Engine Bleed Air Switches control which valves by system logic, when bleed
air pressure is available - ANSWERS-PRV
HP Bleed Valve
Engine Bleed Air Valve
QUESTION 6
Describe the general function of the pressure regulation valve (PRV) -
ANSWERS-Prevents damage to ducting and equipment downstream by limiting
bleed air pressure
QUESTION 7
END OF
PAGE 2
, B-747 ORAL EXAM 2024
Under what conditions would Intermediate Pressure (IP) air be used - ANSWERS-
High power setting operations
QUESTION 8
With a right duct isolated, how will this affect the hydraulic systems - ANSWERS-
The hydraulic demand pump 4 is turned off
No hydraulic system 3 and 4 reservoir pressure
QUESTION 9
With the EICAS message STARTER CUTOUT 1,2,3,4 shown, will Nacelle Ant-
ice be available for the related engine? - ANSWERS-No
QUESTION 10
With a right duct isolated, how will the affected leading edge flaps extend -
ANSWERS-The right wing LEF operate electrically in the secondary mode
-Expect EICAS message FLAPS PRIMARY
QUESTION 11
END OF
PAGE 3
, B-747 ORAL EXAM 2024
B-747 Oral Question Bank Review
Auto Flight & Flight Instruments - ANSWERS-
QUESTION 12
The outer BANK LIMIT selector applies to which roll mode - ANSWERS-HDG
SEL
QUESTION 13
How do you re-engage the autothrottles when the pitch mode is ALT, V/S or G/S -
ANSWERS-Push the speed switch
QUESTION 14
How do you re-engage the autothrottles when the pitch mode is VNAV _____ or
FLCH SPD, when the Autothrottle flight mode annunciation is blank -
ANSWERS-Cycle the A/T ARM switch to OFF and back to ARM
How do you re-engage the autothrottles when the pitch mode is VNAV _____ or
FLCH SPD - ANSWERS-Cycle the A/T ARM switch to OFF and back to ARM
END OF
PAGE 4
