B-747 Oral Question Bank & Review (PC)
COmprehensive Quiz 2025 Update |Actual Exam Set
Questions And Verified Answers (Correct solutions) |
Get It 100% Accurate!!
What is the wingspan of the 400F / -8 - ✔✔ANSWER✔✔>>213 feet (64.9 meters)
224.5 feet (68.4 meters)
What is the minimum width of pavement for a 180 degree turn - ✔✔ANSWER✔✔>>With
body gear steering 153 feet (46.6 meters)
Without body gear steering 172 feet (52.4 meters)
With the Emergency (EMER) Lights Switch ARMED, when do the emergency lights
illuminate - ✔✔ANSWER✔✔>>If airplane electrical power (DC) fails or is turned off
What happens when you rotate the Oxygen Mask Emergency / Test selector to
emergency - ✔✔ANSWER✔✔>>Supplies 100% oxygen under positive pressure at all
cabin altitudes, and protects against smoke and harmful vapors
What is the electrical power source for the emergency lighting system, and for what
duration - ✔✔ANSWER✔✔>>Remote batteries for 15 minutes
Where is the portable ELT located, on the freighter? - ✔✔ANSWER✔✔>>Upper deck
lavatory exterior wall.
Give examples of Immediate Action Items on the Quick Reference Checklist -
✔✔ANSWER✔✔>>1. CABIN ALTITUDE - Rapid Depressurization
2. ENG 1,2,3,4 AUTOSTART - Aborted Engine Start
3. Engine Limit or Surge or Stall
4. IAS DISAGREE - Airpseed Unreliable
5. FIRE ENG 1,2,3,4 - Engine Severe Damage or Separation
6. Multiple Engine Flameout or Stall
What is the maximum Takeoff and Landing Tailwind component for the -400F/ 08 and
LCF? - ✔✔ANSWER✔✔>>15 knots (LCF - 10 KTS)
What is the maximum headwind component for autoland - ✔✔ANSWER✔✔>>25 knots
,What are maximum and minimum glideslope angles for ILS autoland -
✔✔ANSWER✔✔>>3.25 degrees (max)
2.5 degrees (min)
What VNAV limitation applies to level - off within 2,000 feet after changing the altimeter
setting from QNE to QNH, or QNH to QNE - ✔✔ANSWER✔✔>>Do not use VNAV for
level - off if the QNH is less than 29.70in / 1006 hPa
Without LAND 2 or LAND 3 annunciation, the autopilot must not remain engaged below
what RA altitude - ✔✔ANSWER✔✔>>100 feet RA
What is turbulent air penetration speed - 400F and -8 - ✔✔ANSWER✔✔>>290 to 310 /
0.82 to 0.85 Mach, whichever is lower.
310 KTS / 0.83
What is the maximum altitude for flap extension - ✔✔ANSWER✔✔>>20,000 feet
What EEC normal mode protection feature is not available in EEC Alternate mode -
✔✔ANSWER✔✔>>Thrust limiting at maximum N1
(Maximum thrust can be achieved prior to thrust lever position at full forward)
When does the EEC select approach idle - ✔✔ANSWER✔✔>>Flaps in a landing
position
Continuous ignition switch is ON
During thrust reverser operation
What action should be taken prior to manual selection of EEC alternate mode -
✔✔ANSWER✔✔>>Decrease thrust lever position
(Thrust does not change when the EEC auto transfers control from normal mode to
alternate mode)
What happens when you turn the Continuous (CON) IGNITION Switch ON -
✔✔ANSWER✔✔>>Selected igniters operate continuously
Commands approach idle minimum
What two engine indications are displayed full time on the primary EICAS -
✔✔ANSWER✔✔>>N1 & EGT
What color does the EGT change to if the EGT start or takeoff limit is reached -
✔✔ANSWER✔✔>>Red
, If the airborne vibration monitoring system cannot determine the source of the vibration
(FAN, LPT, NT) it will display "BB". What does this mean? -
✔✔ANSWER✔✔>>Broadband
(Broadband vibration is the average vibration detected)
What 3 items will the auto start protect from during and engine start that also will result
in an ENG 1,2,3,4 AUTOSTART (Amber) EICAS message - ✔✔ANSWER✔✔>>Hot
start
Hung start
No EGT rise
How is the engine thrust reverser actuated on the GE B747-400F -
✔✔ANSWER✔✔>>Pneumatically actuated fan air
With an engine shut down, what does "X-BLD" indicate when displayed next to the N2
indication - ✔✔ANSWER✔✔>>Crossbleed air is recommended for start
When is ignition selected for all engines - ✔✔ANSWER✔✔>>1. Trailing edge flaps are
out of the up position
2. Continuous ignition switch is ON
How many igniters are selected for ground start , and how many for in-flight start -
✔✔ANSWER✔✔>>One igniter for ground start
Two for in-flight start
B-747 Oral Question Bank Review - APU - ✔✔ANSWER✔✔>>
When does the EICAS memo message APU RUNNING display -
✔✔ANSWER✔✔>>When the APU selector is ON and APU N1 RPM exceeds 95% N1
Is electrical power available from the APU in flight - ✔✔ANSWER✔✔>>No
Can the APU be operated in flight - ✔✔ANSWER✔✔>>Yes
When left running for takeoff it can be operated in flight up to 20,000 feet
How long should you wait before turning the battery switch OFF after the APU selector
is rotated to OFF and why - ✔✔ANSWER✔✔>>2 minutes
Allows a complete shutdown sequence, with fire detection capability
B-747 Oral Question Bank Review - Electrical - ✔✔ANSWER✔✔>>
COmprehensive Quiz 2025 Update |Actual Exam Set
Questions And Verified Answers (Correct solutions) |
Get It 100% Accurate!!
What is the wingspan of the 400F / -8 - ✔✔ANSWER✔✔>>213 feet (64.9 meters)
224.5 feet (68.4 meters)
What is the minimum width of pavement for a 180 degree turn - ✔✔ANSWER✔✔>>With
body gear steering 153 feet (46.6 meters)
Without body gear steering 172 feet (52.4 meters)
With the Emergency (EMER) Lights Switch ARMED, when do the emergency lights
illuminate - ✔✔ANSWER✔✔>>If airplane electrical power (DC) fails or is turned off
What happens when you rotate the Oxygen Mask Emergency / Test selector to
emergency - ✔✔ANSWER✔✔>>Supplies 100% oxygen under positive pressure at all
cabin altitudes, and protects against smoke and harmful vapors
What is the electrical power source for the emergency lighting system, and for what
duration - ✔✔ANSWER✔✔>>Remote batteries for 15 minutes
Where is the portable ELT located, on the freighter? - ✔✔ANSWER✔✔>>Upper deck
lavatory exterior wall.
Give examples of Immediate Action Items on the Quick Reference Checklist -
✔✔ANSWER✔✔>>1. CABIN ALTITUDE - Rapid Depressurization
2. ENG 1,2,3,4 AUTOSTART - Aborted Engine Start
3. Engine Limit or Surge or Stall
4. IAS DISAGREE - Airpseed Unreliable
5. FIRE ENG 1,2,3,4 - Engine Severe Damage or Separation
6. Multiple Engine Flameout or Stall
What is the maximum Takeoff and Landing Tailwind component for the -400F/ 08 and
LCF? - ✔✔ANSWER✔✔>>15 knots (LCF - 10 KTS)
What is the maximum headwind component for autoland - ✔✔ANSWER✔✔>>25 knots
,What are maximum and minimum glideslope angles for ILS autoland -
✔✔ANSWER✔✔>>3.25 degrees (max)
2.5 degrees (min)
What VNAV limitation applies to level - off within 2,000 feet after changing the altimeter
setting from QNE to QNH, or QNH to QNE - ✔✔ANSWER✔✔>>Do not use VNAV for
level - off if the QNH is less than 29.70in / 1006 hPa
Without LAND 2 or LAND 3 annunciation, the autopilot must not remain engaged below
what RA altitude - ✔✔ANSWER✔✔>>100 feet RA
What is turbulent air penetration speed - 400F and -8 - ✔✔ANSWER✔✔>>290 to 310 /
0.82 to 0.85 Mach, whichever is lower.
310 KTS / 0.83
What is the maximum altitude for flap extension - ✔✔ANSWER✔✔>>20,000 feet
What EEC normal mode protection feature is not available in EEC Alternate mode -
✔✔ANSWER✔✔>>Thrust limiting at maximum N1
(Maximum thrust can be achieved prior to thrust lever position at full forward)
When does the EEC select approach idle - ✔✔ANSWER✔✔>>Flaps in a landing
position
Continuous ignition switch is ON
During thrust reverser operation
What action should be taken prior to manual selection of EEC alternate mode -
✔✔ANSWER✔✔>>Decrease thrust lever position
(Thrust does not change when the EEC auto transfers control from normal mode to
alternate mode)
What happens when you turn the Continuous (CON) IGNITION Switch ON -
✔✔ANSWER✔✔>>Selected igniters operate continuously
Commands approach idle minimum
What two engine indications are displayed full time on the primary EICAS -
✔✔ANSWER✔✔>>N1 & EGT
What color does the EGT change to if the EGT start or takeoff limit is reached -
✔✔ANSWER✔✔>>Red
, If the airborne vibration monitoring system cannot determine the source of the vibration
(FAN, LPT, NT) it will display "BB". What does this mean? -
✔✔ANSWER✔✔>>Broadband
(Broadband vibration is the average vibration detected)
What 3 items will the auto start protect from during and engine start that also will result
in an ENG 1,2,3,4 AUTOSTART (Amber) EICAS message - ✔✔ANSWER✔✔>>Hot
start
Hung start
No EGT rise
How is the engine thrust reverser actuated on the GE B747-400F -
✔✔ANSWER✔✔>>Pneumatically actuated fan air
With an engine shut down, what does "X-BLD" indicate when displayed next to the N2
indication - ✔✔ANSWER✔✔>>Crossbleed air is recommended for start
When is ignition selected for all engines - ✔✔ANSWER✔✔>>1. Trailing edge flaps are
out of the up position
2. Continuous ignition switch is ON
How many igniters are selected for ground start , and how many for in-flight start -
✔✔ANSWER✔✔>>One igniter for ground start
Two for in-flight start
B-747 Oral Question Bank Review - APU - ✔✔ANSWER✔✔>>
When does the EICAS memo message APU RUNNING display -
✔✔ANSWER✔✔>>When the APU selector is ON and APU N1 RPM exceeds 95% N1
Is electrical power available from the APU in flight - ✔✔ANSWER✔✔>>No
Can the APU be operated in flight - ✔✔ANSWER✔✔>>Yes
When left running for takeoff it can be operated in flight up to 20,000 feet
How long should you wait before turning the battery switch OFF after the APU selector
is rotated to OFF and why - ✔✔ANSWER✔✔>>2 minutes
Allows a complete shutdown sequence, with fire detection capability
B-747 Oral Question Bank Review - Electrical - ✔✔ANSWER✔✔>>
