Card Set Information

2012-04-17 21:15:41
B737 autoflight system

B737 autoflight system
Show Answers:

  1. How are Autothrottle N1 limits determined during normal operations?
    Computed by the Flight Management Computer
  2. Which A/T modes allow the thrust to remain in the position manually selected by the pilot?
  3. TRUE or FALSE

    The A/T functions with the PMC on or off during takeoff.
  4. Which modes are exclusive A/T modes?
    N1 & SPEED
  5. How is the A/T disengaged after an autoland touchdown?
    A/T automatically trips to OFF two seconds after touchdown.
  6. TRUE or FALSE

    A/T P/RST lights do come on when the A/T trips off automatically after touchdown.
  7. What is the recommended MCP IAS MACH target speed when on final approach in landing configuration for an autoland?
    V REF plus 5 knots
  8. When does the Autothrottle FMC SPD MODE engage?
    When VNAV is selected
  9. At what altitude during an autopilot autoland do the A/T RETARD MODE engage?
    27 feet RA
  10. When is the A/T armed for the go-around mode?
    Autothrottle switch armed and Radio Altitude 2000 feet or less.
  11. How much thrust is generated when the TOGA switch is pushed once during a go-around?
    Thrust for a 1000-2000 feet/minute climb
  12. The autoflight system (does not include VNA) provides speed, pitch and thrust commands to avoid exceeding:
    • Landing gear maximum extended speed
    • Wing flap maximum speeds
    • Vmo or Mmo
  13. An illuminated light in an MCP select button means:
    The mode may be de-selected by pushing the button.
  14. The Captain's flight director with VOR/LOC selected and autopilot A engaged, uses signals from:
    #1 VHF NAV radio
  15. What is indicated in the MCP IAS/MACH display window when VNAV is engaged?
  16. What occurs when Vertical Speed is selected with the A/T engaged?
    V/S engages and the A/T engage in the MCP SPEED mode
  17. A/T operation is available with Flight Directors or with the Autopilot engaged or not engaged.
    ON or OFF
  18. What does the ON light in a MCP mode selector switch indicate?
    Mode can be deselected by pushing respective switch again.
  19. What happens when an A/P is engaged in CMD and pressure is applied to the control wheel or column?
    Autopilot paddle switch remains in CMD; CWS R is displayed on the FMA.
  20. What occurs when an A/P is engaged in CMD and pressure is applied to the control wheel and or column?
    Pitch and/or roll modes revert to CWS
  21. What will cause a single SP to disengage?
    Pressing the TOGA button for go-around below 2000 RA

    Placing the center pedestal AUTOPILOT STAB TRIM switch to CUTOUT

    Loss of the respective hydraulic system pressure for that autopilot
  22. TRUE or FALSE

    During cruise flight in VNAV, only one autopilot may be engaged.
  23. Which A/P mode maneuvers airplane in response to control pressure applied by the pilot?
  24. With the autopilot in CWS ROLL and ALT HOLD, the pilot rools the aircraft into 15 degrees of bank and releases the controls. The aircraft will:
    Maintain 15 degrees bank and hold altitude.
  25. With A/P engage paddle in CMD mode, how can CWS pitch mode be engaged?
    CMD mode may be overridden to CWS pitch by forward or aft pressure on the flight controls.
  26. Which mode is only a FD mode and not an AP mode?
  27. Which are roll modes only?
  28. Which are the pitch modes?
    • N1 is an A/T mode.
  29. How is the ALT ACQ mode engaged?
    Automatically when climbing or descending in VS or LVL CHG modes.
  30. What mode engages automatically when ALT ACQ is engaged and a new MCP altitude is selected?
    VS engages if selected altitude differs by more than 100 feet from previous selected altitude.
  31. How is LVL CHG mode engaged?
    Select new MCP altitude, push the LVL CHG switch
  32. What speed will be displayed in the IAS/MACH speed window when LVL CHG is selected from VNAV?
    IAS/MACH display and airspeed cursors synchronize to existing speed.
  33. What does capture point of selected VOR course depend on?
    Intercept angle & closure rate
  34. TRUE or FALSE

    GS must be captured first, then LOC may be captured.
  35. What is the N1 limit annunciation on the Thrust Mode Annunciator after G/S capture?
  36. On a single autopilot approach, what causes an automatic disengagement of the APP mode?
    Changing the frequency of the master VHF NAV unit.
  37. What is the minimum altitude for disengaging an autopilot after a single autopilot ILS approach?
    50 ft AGL
  38. TRUE or FALSE

    Before engaging the autopilot, either aileron or rudder trim may be used to trim the aircraft. After autopilot engagement, ONLY rudder trim should be used to level the wings.
  39. What is the minimum altitude for engagement of the autopilot after takeoff?
    1000 ft. AGL
  40. For a non-precision approach, the autopilot must be disengaged before descending______.
    More than 50 ft. below minimums.
  41. The maximum crosswind for Autoland approaches is:
    15 kts.
  42. TRUE or FALSE

    The autoland system should not be used for overweight landings.
  43. The B737 meets the requirements for Autoland with which type of Automatic Flight Control System?
    Fail Passive
  44. When can a second autopilot be engaged w/out causing the first autopilot to disengage?
    After arming the APP mode until descending below 800 ft. AGL.
  45. Two autopilots are installed. Under what conditions can both autopilots be engaged?
    Approach mode armed above 800 ft. AGL