B-747 Exam
Set Questions With Reviewed
Correct Detailed Answers
New Update!!
1. Number of Flap Control Units (FCUs) - ANSWER Three.
2. Maximum extension of trailing edge flaps in alternate mode - ANSWER
Flaps 25.
3. EICAS Advisory message for FCU failure - ANSWER FLAPS CONTROL.
4. Flap Alternate Control mode operation - ANSWER Bypasses the FCUs,
can be manually selected, all flaps are extended or retracted by electric
motors.
5. Primary control failure effect on leading edge flap group - ANSWER
Both groups switch to secondary mode.
6. FCU - ANSWER Provides asymmetry protection in normal mode.
7. FLAPS - ANSWER Both groups switch to secondary mode if a primary
control failure occurs in either the inboard or midspan leading edge flap
group.
, 8. FLIGHT CONTROLS - Spoiler Panels - ANSWER Extend to the up
position during landing if thrust levers 1 and 3 are near idle position and
main landing gear is on the ground.
9. FLIGHT CONTROLS - Ailerons - ANSWER Outboard ailerons deflected
down at flap settings of 10 or 20 and return to neutral at 25 or 30. Inboard
ailerons droop at 10 or greater.
10. Stabilizer Trim Cutout Switches AUTO position - ANSWER Supplies
hydraulic power for stabilizer trim and shuts off related system hydraulic
power if unscheduled trim detected.
11. FLAP CONTROLS - ANSWER Inboard and midspan leading edge flaps
retract automatically during engine reverse thrust operation.
12. FLIGHT CONTROLS - Stabilizer Trim - ANSWER Leading edge of the
movable horizontal stabilizer is moved when stabilizer trim inputs are made.
13. Yaw Dampers - ANSWER Improve airplane lateral and directional
stability and provide turn coordination.
14. Aileron Lockout System - ANSWER Locks outboard ailerons in the
neutral position at high airspeeds to prevent over-controlling.
, 15. Pitch Augmentation Control System (PACS) - ANSWER Assists the 747-
8 in pitch stability and landing flare by providing a small amount of nose up
elevator during landing flare.
16. Tail Strike Protection - ANSWER Activates when PACS senses imminent
tail strike and decreasing elevator deflection.
17. Takeoff Trim Setting - ANSWER Calculated based on FMC gross weight,
center of gravity, takeoff thrust derate selection, and takeoff flap selection
(747-8 only).
18. Control Wheel Stabilizer Trim Switches - ANSWER Do not cause the
autopilot to disconnect when multiple autopilots are engaged.
19. Landing Gear OFF Position - ANSWER Landing gear hydraulic system is
depressurized.
20. Nose-Wheel Steering - ANSWER Can turn the nose gear 70 degrees in
either direction with the tiller and 7 degrees with the rudder pedals.
BRAKE SOURCE Amber Light - ANSWER Indicates active brake hydraulic
sources (hydraulic systems 4, 1, and 2) have low pressure.
Landing Gear Retraction - ANSWER Main gear are held in the up position by
uplocks, and the nose gear is mechanically locked in the up position.
Set Questions With Reviewed
Correct Detailed Answers
New Update!!
1. Number of Flap Control Units (FCUs) - ANSWER Three.
2. Maximum extension of trailing edge flaps in alternate mode - ANSWER
Flaps 25.
3. EICAS Advisory message for FCU failure - ANSWER FLAPS CONTROL.
4. Flap Alternate Control mode operation - ANSWER Bypasses the FCUs,
can be manually selected, all flaps are extended or retracted by electric
motors.
5. Primary control failure effect on leading edge flap group - ANSWER
Both groups switch to secondary mode.
6. FCU - ANSWER Provides asymmetry protection in normal mode.
7. FLAPS - ANSWER Both groups switch to secondary mode if a primary
control failure occurs in either the inboard or midspan leading edge flap
group.
, 8. FLIGHT CONTROLS - Spoiler Panels - ANSWER Extend to the up
position during landing if thrust levers 1 and 3 are near idle position and
main landing gear is on the ground.
9. FLIGHT CONTROLS - Ailerons - ANSWER Outboard ailerons deflected
down at flap settings of 10 or 20 and return to neutral at 25 or 30. Inboard
ailerons droop at 10 or greater.
10. Stabilizer Trim Cutout Switches AUTO position - ANSWER Supplies
hydraulic power for stabilizer trim and shuts off related system hydraulic
power if unscheduled trim detected.
11. FLAP CONTROLS - ANSWER Inboard and midspan leading edge flaps
retract automatically during engine reverse thrust operation.
12. FLIGHT CONTROLS - Stabilizer Trim - ANSWER Leading edge of the
movable horizontal stabilizer is moved when stabilizer trim inputs are made.
13. Yaw Dampers - ANSWER Improve airplane lateral and directional
stability and provide turn coordination.
14. Aileron Lockout System - ANSWER Locks outboard ailerons in the
neutral position at high airspeeds to prevent over-controlling.
, 15. Pitch Augmentation Control System (PACS) - ANSWER Assists the 747-
8 in pitch stability and landing flare by providing a small amount of nose up
elevator during landing flare.
16. Tail Strike Protection - ANSWER Activates when PACS senses imminent
tail strike and decreasing elevator deflection.
17. Takeoff Trim Setting - ANSWER Calculated based on FMC gross weight,
center of gravity, takeoff thrust derate selection, and takeoff flap selection
(747-8 only).
18. Control Wheel Stabilizer Trim Switches - ANSWER Do not cause the
autopilot to disconnect when multiple autopilots are engaged.
19. Landing Gear OFF Position - ANSWER Landing gear hydraulic system is
depressurized.
20. Nose-Wheel Steering - ANSWER Can turn the nose gear 70 degrees in
either direction with the tiller and 7 degrees with the rudder pedals.
BRAKE SOURCE Amber Light - ANSWER Indicates active brake hydraulic
sources (hydraulic systems 4, 1, and 2) have low pressure.
Landing Gear Retraction - ANSWER Main gear are held in the up position by
uplocks, and the nose gear is mechanically locked in the up position.
