B757 Review Questions

1
B757 Review Questions
2
AutoFlight

• At what RA does flare mode engage?
• 45 feet RA

3
AutoFlight

• When does autopilot electrical isolation occur?
• With at least two generators working and three
  autopilots armed for the approach.

4
AutoFlight

• After electrical isolation, what is the power
  source for the center autopilot?
• Battery/Standby system

5
AutoFlight

• If an engine generator were to fail on a multi
  autopilot approach above 200, what would happen
  to the AC power distribution to the auto pilots?
• After the generator failure the center autopilot
  switches from center AC bus to its normal source
  of power, Left AC bus.

6
AutoFlight

• If during a land three approach an AP were to
  fail, could the approach be continued to an auto
  land safely?
• Yes. A single fault would not prevent the
  remaining two autopilots from completing the auto
  landing.

7
AutoFlight

• Rudder control is added by the AP when?
• Only during multiple AP approaches.

8
AutoFlight

• When is GA mode armed?
• When the flaps are not up or GS is captured

9
AutoFlight

• Can the AP disconnect bar disconnect all 3 AP?
• Yes, but will not silence the horn

10
AutoFlight

• Is over/under speed protection available in VS
  mode?
• No

11
AutoFlight

• What percentage is scheduled on the TMC for CLIMB
  1, and CLIMB 2?
• 94 and 88

12
AutoFlight

• What is the scheduled pitch attitude after
  takeoff at 400
• V2 15

13
AutoFlight

• During a coupled missed approach, an engine fails
  just as the GA switch is activated. Which action
  must the pilot take to prevent yaw from rolling
  the aircraft?
• None. There is rudder input from the auto flight
  system preventing a yaw from rolling the
  aircraft. However, once a pitch or roll command
  is initiated by the pilot, he must now manually
  deflect the rudder.

14
AutoFlight

• When is the GA mode armed?
• When the flaps are not up, or GS is captured.

15
AutoFlight

• Do the autopilots do anything different to the
  stab trim during a LAND 2 approach?
• Yes. At 330 feet RA and increment of nose up trim
  is automatically applied.

16
AutoFlight

• Can you dispatch with both Yaw Dampers
  inoperative?
• No, check MEL

17
AutoFlight

• When does rudder channeling commence on a multi
  channel approach?
• Below 1500 RA

18
AutoFlight

• When is the normal bus-tie operation
  isolated/inhibited on a multi channel approach?
• 200 RA

19
AutoFlight

• What does the autopilot amber annunciator light
  indicate?
• Indicates that some operating mode of the engaged
  autopilot has failed, but the auto pilot remains
  engaged.

20
AutoFlight

• Is over speed protection available in Flight
  level change mode?
• Yes.

21
AutoFlight

• What is the main power source of the left and
  center FCCs?
• Left main AC bus and Center AC bus.

22
AutoFlight

• True or false the autopilot trims nose up at
  330 on CAT III land II approach?
• True.

23
AutoFlight

• Is manual rudder input restricted during auto
  land operation?
• Yes, manual rudder input is restricted due to A/P
  rudder control from 1500 feet through GA.

24
AutoFlight

• What is a good way to monitor the center FCC in
  flight?
• Use the center Autopilot

25
AutoFlight

• TRUE/FALSE During an Autoland Roll Out mode
  operation the Autopilots lower the nose wheel to
  the runway at 5 feet R/A plus 2 seconds with the
  pitch attitude less than 2 degrees
• TRUE

26
AutoFlight

• Should you follow the flight director pitch bar
  at lift off?
• No, you would probably get a tail strike

27
AutoFlight

• What will the A/T system do when the thrust
  reversers are selected after landing?
• A/T mode disengages

28
AutoFlight

• Before the autoflight system will climb using
  FLCH,________ and then the desired AFDS pitch
  change is made
• A higher altitude has to be set in the Altitude
  window

29
AutoFlight

• During the takeoff roll, EPR appears in both the
  FMA A/T windows until what speed?
• 80 knots

30
AutoFlight

• All AFDS modes can be disengaged by selecting
  another command mode or by disengaging the A/P
  and_____
• turning off the Flight Directors

31
AutoFlight

• During the takeoff roll, the F/D pitch bar
  commands a fixed attitude of
• 8 degrees nose up

32
AutoFlight

• Can the A/T be operated independently of the
  flight director and the autopilot?
• Yes

33
AutoFlight

• After liftoff, the F/D pitch bar initially moves
  to an attitude of
• 15 degrees nose up

34
AutoFlight

• TRUE/FALSE The vertical speed mode will command
  the aircraft to leave the current altitude when a
  new altitude mode has not been selected.
• TRUE

35
AutoFlight

• When GA is engaged, the AFDS controls pitch and
  roll while the A/T
• Increases thrust to establish a 2,000 fpm climb

36
AutoFlight

• TRUE/FALSE During the autoland rollout mode
  operation, rollout guidance continues to full
  stop or until the A/Ps are disengaged.
• TRUE

37
AutoFlight

• TRUE/FALSE During the autoland rollout mode
  operation the F/D roll command bar provides
  directional steering information.
• TRUE

38
AutoFlight

• Active FMA modes are displayed in large green
  letters in the top part of the annunciator
  windows. Armed FMA modes are indicated
  _______underneath the green annunciations.
• In smaller, white letters

39
AutoFlight

• How many FCCs are normally used for A/P
  operations during an automatic approach, landing
  and rollout, as well as the initial phase of a
  go-around?
• Three

40
AutoFlight

• TRUE/FALSE The V/S mode has no stall or
  overspeed protection and annunciations
• TRUE

41
AutoFlight

• When the LOC is captured, the AFDS will command
  up to _____ degrees regardless of the MCP bank
  angle selector.
• 30