Automatic Flight

Question 1

With VNAV engaged, the AFDS (Autopilot Flight Director System) pitch and A/T modes are commanded by the:

Answer 1

FMC.

Question 2

The Automatic Flight System (AFS) consists of:

Answer 2

• The autopilots (A/P).
• The Flight Directors (F/D).
• The Autothrottles (A/T).

Question 3

Normally, N1 limits and target N1 values are provided to the A/T by the:

Answer 3

FMC.

Question 4

VNAV is terminated by:

Answer 4

• Selecting a different pitch mode.
• G/S capture.
• Extending flaps beyond 15 with APP mode engaged.

Question 5

Moving the autopilot Stabilizer Trim Cutout Switch to the CUTOUT position will disengage the autopilot:

Answer 5

True.

Question 6

If the autopilot ALT HOLD mode is manually overridden with control column pressure, which of the following occurs?

Answer 6

The autopilot changes to CWS P and returns to ALT HLD if control pressure released within 250 ft of selected altitude.

Question 7

The Control wheel force required to override the A/P COMMAND mode is:

Answer 7

Greater than normal CWS force.

Question 8

When performing an autopilot ILS approach, the glide slope can be captured from above or below:

Answer 8

True.

Question 9

When control wheel pressure is released during CWS roll operation, the airplane will roll wings level when the bank angle is:

Answer 9

6 degrees or less.

Question 10

How many independent Flight Control Computers (FCCs) are there in the AFDS?

Answer 10

Two.

Question 11

The AUTOLAND warning light is armed during dual ILS A/P approach below ____ feet.

Answer 11

500 feet.

Question 12

What pitch mode is annunciated after takeoff when the autopilot is first engaged in CMD?

Answer 12

MCP SPD.

Question 13

The autopilot cannot be engaged while force is applied to the control wheel.

Answer 13

True.

Question 14

In the ‘ARM’ autothrottle mode, the thrust lever autothrottle servos maintain thrust at the selected N1 limit displayed on the thrust mode display.

Answer 14

True.

Question 15

LNAV terminates when:

Answer 15

• HDG SEL mode is engaged.
• Upon VOR or localizer capture.
• Aircraft is not within LNAV capture criteria.

Question 16

Minimum speed reversion is also available when the A/T is OFF and the AFDS is in ALT HOLD or after G/S capture.

Answer 16

False.

Question 17

Which A/T modes permit manual thrust change without A/T interference?

Answer 17

THR HLD & ARM.

Question 18

What is the minimum altitude (AGL) for selecting ‘CMD’ on the second autopilot during an ILS approach?

Answer 18

800 feet.

Question 19

Which of the following occurs when a TO/GA switch is pressed below 2000 feet RA for a flight director go-around from a single autopilot ILS approach?

Answer 19

• The autopilot disengages.
• GA mode of the Flight Director engages.
• The autothrottle advances thrust levers to reduced go-around N1.

Question 20

The airplane can be flown in the CWS mode even though the autopilot is engaged in CMD.

Answer 20

True.

Question 21

LNAV must be manually disengaged in order to capture an ILS localizer.

Answer 21

False.

Question 22

After lift-off, the A/T remains in THR HLD until

Answer 22

800 feet RA

Question 23

If an engine failure occurs during takeoff, the pitch command target speed is:

Answer 23

• V2, if airspeed is below V2.
• Existing speed, if airspeed is between V2 & V2+20.
• V2+20, if airspeed is above V2+20.

Question 24

Engaging LVL CHG or VNAV climb modes automatically engages the A/T N1 mode.

Answer 24

True.

Question 25

The airplane is in level flight at the selected altitude with ALT HOLD engaged. Changing the MCP altitude by at least 100 feet, arms the V/S mode.

Answer 25

True.

Question 26

Trimming the stabilizer with the electrical trim switch on the control wheel disengages the autopilot.

Answer 26

True.

Question 27

Which mode must be armed before the second autopilot can be selected?

Answer 27

APP.

Question 28

During takeoff with F/D ON, the AFDS commands pitch attitude ____ degrees after ____ IAS.

Answer 28

15 degrees nose up & 60 kt IAS.

Question 29

Dual channel A/P operation is possible ONLY when two generators are powering the busses.

Answer 29

False.

Question 30

Pushing a CWS engage switch engages the A/P pitch and roll axes in the CWS mode and displays CWS P & CWS R on the FMAs. The A/P maneuvers the airplane in response to control pressures applied by either pilot. The control pressure is similar to that required for manual flight. If aileron pressure is released with 6 degrees or less bank, the A/P rolls the wings level and holds existing heading. The heading hold feature with bank less than 6 degrees is inhibited when:

Answer 30

Below 1500 feet RA with the landing gear down or after F/D VOR capture with TAS 250 knots or less or after F/D LOC capture in the APP mode.

Question 31

If engaged the autothrottle will disengage ____ after landing touchdown.

Answer 31

2 seconds.

Question 32

If thrust levers become separated more than 10 degrees during a dual channel approach (before FLARE armed is annunciated), the autothrottle is then disengaged.

Answer 32

True.

Question 33

The autopilot flare maneuver starts at approximately ____ feet RA and is completed at touchdown.

Answer 33

50 feet.

Question 34

During a single F/D go-around, F/D pitch commands ____ degrees nose up. As climb rate increases, F/D pitch commands maintain a target speed.

Answer 34

13 degrees.

Question 35

If windshear is encountered during F/D takeoff or go-around, the F/D pitch command bar provides commands to maintain V2+20 kts until vertical speed decreases to approximately:

Answer 35

600 fpm.

Question 36

If windshear is encountered during an ILS approach, both the F/D and A/P attempt to hold the airplane on altitude, or on glideslope after glideslope capture, without regard to angle of attack or stick shaker limitations.

Answer 36

True.

Question 37

The AUTOLAND warning light flashed RED if:

Answer 37

A/P disengages & ILS deviation occurs below 200 feet.

Question 38

An A/T Disengage flashing light (amber) indicates airspeed error under following conditions: inflight, flaps not up & airspeed differs from commanded value by _______ and is not approaching commanded value.

Answer 38

+ 10 knots or - 5 knots.

Question 39

Localizer can be intercepted in HDG SEL, LNAV or CWS R.

Answer 39

True.

Question 40

The following annunciation provide the flight crew with autoland system mode and status:

Answer 40

LAND 3 means two autopilots, three inertial sources, the associated sensors are operating normally for an automatic landing and rollout and at least one FMS is operative.

Question 41

The Autopilot Disengage Light is illuminated steady red when: 1- Stabilizer out of trim below 800 feet RA on dual channel approach. 2- ALT ACQ mode inhibited during A/P go around if stabilizer not trimmed for single A/P operation. 3- Disengage light test switch held in position 2. 4-Automatic ground test system fail.

Answer 41

True.

Question 42

After localizer & glideslope capture, CWS cannot be engaged by manually overriding pitch and roll. Manual override of autopilots causes autopilot disengagement.

Answer 42

True.

Question 43

Two independent radio altimeters provide radio altitude to the respective FCCs. With a radio altimeter inoperative, the autopilot will disconnect ____ after LOC and GS capture.

Answer 43

Between 2 and 5 seconds depending on the altitude.

Question 44

When a conflict occurs between the VNAV profile and the MCP altitude, the airplane levels and the pitch flight mode annunciation becomes:

Answer 44

VNAV ALT.

Question 45

During a single F/D go-around, with a push of either TO/GA switch:

Answer 45

FD roll commands hold current ground track.

Question 46

What happens with the IAS/MACH display on the MCP if SPD INTV is pushed during VNAV operations?

Answer 46

IAS/MACH displays opens up and shows FMC target speed.

Question 47

Antenna switching from tail antenna to nose antenna occurs when:

Answer 47

LOC frequency is selected and VOR/LOC is armed or engaged.

Question 48

At what altitude will both A/P's automatically disengage if FLARE is not armed during an ILS dual channel approach?

Answer 48

350 feet RA.

Question 49

After a normal takeoff which pitch command can you expect?

Answer 49

V2+20kt.

Question 50

Condition: After takeoff, A/P engaged before flaps up. (Thrust mode / Roll mode / Pitch mode) Which is the correct mode on the FMA?

Answer 50

N1 / LNAV / MCP SPD.

Question 51

As you push the TO/GA switch for an automatic Go-Around, what is the correct FMA announcement? (Thrust mode / Roll mode / Pitch mode)

Answer 51

GA / - / TO/GA.

Question 52

When flying on a geometrical path with VNAV engaged you push SPD INTV. What will happen?

Answer 52

VNAV PTH will remain engaged and MCP SPD will be annunciated in the FMA.

Question 53

When in ALT HOLD FL80 you change the barometric setting from STD to QNH 1030. What will the aircraft do?

Answer 53

The aircraft will continue at FL80, but the ALT readout will change.

Question 54

On a normal ILS approach, when will the respective LLZ and G/S captures occur.

Answer 54

LLZ not later than 1/2 dot deviation, GS 2/5 dot below glideslope.

Question 55

You are established on the ILS at 3000´ and inadvertently press TO/GA once. What will happen?

Answer 55

The A/P will disconnect and A/T add thrust to reduced G/A, F/D pitch 15deg nose up.

Question 56

The white A/T LIM symbol appears on the upper display unit. What is correct?

Answer 56

The FMC is not providing A/T with N1 limit values.