Automatic Flight Controls Exam Questions With Complete Solutions Rated A+
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Module
Automatic Flight Controls
Institution
Automatic Flight Controls
What two systems are integrated by the Automatic Flight Control System (AFCS)? - ANSWER-Flight Director and the Autopilot Systems.
What four systems does the AFCS supply information to? - ANSWER-• Dual flight directors
• Two-axis autopilot
• Automatic pitch trim
• Two yaw dampers
W...
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Automatic Flight Controls Exam
Questions With Complete Solutions
Rated A+
What two systems are integrated by the Automatic Flight Control System (AFCS)? -
ANSWER-Flight Director and the Autopilot Systems.
What four systems does the AFCS supply information to? - ANSWER-• Dual flight
directors
• Two-axis autopilot
• Automatic pitch trim
• Two yaw dampers
What are the four system components of the AFCS? - ANSWER-• Flight control panel
(FCP)
• Two flight control computers (FCC)
• Both autopilot servomotors
• Both yaw dampers
What are the main AFCS microprocessors and where are they located? - ANSWER-
Flight Control Computers (FCC) 1 and 2. They are located in the IAPS.
What systems do the FCCs provide instructions to? - ANSWER-• FCP
• FDs
• Yaw dampers
• AP servo motors
The flight director receives its position on the primary flight display (PFD) from what
system? - ANSWER-The FCCs
, What is the IAPS? - ANSWER-The Integrated Avionics Processing System. This system
contains many computers and components and provides the means for them to
communicate.
Are both FDs always active? - ANSWER-During most modes, one flight director is
supplying guidance information to both PFDs. The other FD is in standby but they do
continue to continuously cross talk. During the following modes, both FDs are active
and providing onside information:
• Takeoff mode
• Approach mode
• Go around mode
What occurs if the active FD fails? - ANSWER-A white FD1 or FD 2 FAIL EICAS status
message will be displayed. Also a red FD in a box will appear on the PFDs.
Where are the vertical and lateral mode selections of the FD displayed? - ANSWER-On
the Flight Mode Annunciator (FMA) located at the top of the PFDs.
Explain the two fields of the FMA? - ANSWER-A vertical cyan line separates the two
fields, with the left side the active field and the right side the armed field. The top line of
the FMA displays the active and armed FD lateral mode and the bottom line the active
and armed FD vertical mode. The active side is green text and the armed side is white
text.
What information do the FCCs process to figure the flight of the aircraft? - ANSWER-
The information needed comes from the attitude and heading reference system (AHRS)
and the air data computer (ADC).
What happens if information in the FMA field is invalid? - ANSWER-If any information is
invalid, it is indicated by a red line where the text would be.
When can only one FD command bar be removed from the PFDs and when will both FD
command bars be removed by a selection of the FD button on the FCP? - ANSWER-
Selection of the FD FCP button on the side that is not active will remove the FD
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