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United Airlines 777 Airplane Systems Study Guide v5.2 (9/26/2023) > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

When will the wheel-to-rudder cross-tie operate?

A

In flight below 210 knots

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2
Q

How is the ALTN flap mode selected?

A

Manually

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3
Q

Bank angle protection provides opposing forces to roll control wheel inputs when the airplane bank angle exceeds approximately _____ degrees.

A

35

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4
Q

Load relief is available for ______.

A

flaps in the primary mode

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5
Q

To provide airplane control in the event of a jam, the control _____ are connected through jamp override mechanisms.

A

columns and control wheels

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6
Q

In the secondary flight control mode, the elevator variable feel system provides _____.

A

two feel force levels that change with flap position

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7
Q

With the autopilot engaged, the primary pitch trim switches are ______.

A

inhibited

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8
Q

Can TAC be overridden with the Manual Trim Cancel switch?

A

No

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9
Q

On the ground, the stabilizer is directly positioned when the pilot uses the ______.

A

pitch trim switches

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10
Q

The TAC is available during all phases of flight ______.

A

above 70 knots

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11
Q

If a single spoiler fails, the corresponding spoiler on the other wing _______.

A

retracts

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12
Q

Autothrottle stall protection (commonly referred to as autothrottle wakeup) is available ______.

A

in all three flight control modes if valid air data information is present

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13
Q

Bank angle protection starts providing opposing forces to the roll control wheel inputs when the airplane bank angle exceeds approximately _____.

A

35 degrees

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14
Q

Flap load relief limits flap retraction to Flaps ______.

A

5

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15
Q

The stab green band is calculated using which of the following pilot CDU inputs?

A

CG

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16
Q

Which of the following statements is true of the RUDDER Trim Knob?

A

It is spring-loaded to neutral

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17
Q

The autoslat system enhances stall protection. When approaching stickshaker, if armed, the system moves the slats from the _____ position to the ______ position.

A

mid, full/down

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18
Q

Autoslat operation is armed at _____.

A

Flaps 1 through 20 only in primary flap mode

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19
Q

Pilot controls command the _____ actuator control electronics (ACEs) and the ______ primary flight computers (PFCs)

A

4, 3

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20
Q

A loss of flap/slat position sensing ______.

A

removes the tape fill and flap lever position indications

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21
Q

In the normal mode in flight, simultaneously pushing both Pitch Trim Switches on the yoke, changes the _____.

A

trim reference speed

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22
Q

To protect against inadvertent flap deployment during cruise, flap and slat extension form the UP position is inhibited at altitudes above approximately ______.

A

20,000 feet

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23
Q

TAC can normally compensate for which of the following engine problems?

A

Engine failure.

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24
Q

The PFCs automatically control pitch to compensate for _______.

A

flap changes

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25
Q

The autoslat system enhances airplane stall protection characteristics _____.

A

upon receiving a signal from the stall warning system

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26
Q

Which of the following sequences illustrates the Normal flight control process while hand flying?

A

Pilot Input>ACEs>PFCs>ACEs>Control Surfaces

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27
Q

Which of the following sequences illustrates the Direct flight control process while hand flying?

A

Pilot Input>ACEs>Control Surfaces

28
Q

PFCs change airplane pitch based on pilot control column or autopilot commands and airspeed. IN the normal mode, PFCs automatically compensate for _______.

A

thrust changes

29
Q

If uncommanded stabilizer motion is sensed, what happens to the hydraulic power?

A

Hydraulic power to the Stabilizer Trim Control Module that caused the motion is automatically shut off.

30
Q

The spoilers are powered by ______ hydraulic system(s).

A

all three

31
Q

The stabilizer is powered by which hydraulic systems?

A

Center and right.

32
Q

Autothrottle Wakeup stall protection is available in _____ flight control mode(s) if valid air data information is present.

A

all three

33
Q

In the _____ pitch control mode(s), the PFCs automatically compensate for thrust, gear, and speed brake configuration changes.

A

Normal

34
Q

Which function is NOT available after an automatic reversion to the secondary flight control mode?

A

Automatic pitch compensation

35
Q

In the ARMED position, the speed brake lever is driven aft to the UP position when the landing gear is fully on the ground and _____

A

both throttles are in IDLE

36
Q

During flight in the normal mode, the pitch trim switches ______.

A

make inputs to the PFCs to first move the elevators to achieve the trim change, then move the stabilizer to streamline the elevator

37
Q

Manual selection of the secondary flight control mode ______.

A

is not possible

38
Q

Which of the following are functions of envelope protection with the PFCs in the normal mode?

A

Bank angle protection, stall protection, and overspeed protection

39
Q

The ALTN FLAPS selector electrically extends the flaps/slats to what maximum position?

A

20/mid

40
Q

In the Secondary Flap/Slat mode, slats are positioned ______.

A

to full extension when Flaps 1 is selected

41
Q

In the Normal flight control mode, what occurs with the STAB TRIM switches in CUTOUT?

A

Pitch trim is still available.

42
Q

What malfunction would cause the ACEs to automatically transition to the Direct flight control mode?

A

Failure of all PFCs

43
Q

On 200B aircraft, primary flap and slat extension from the UP position is inhibited at speeds greater than _____ knots.

A

265

44
Q

Placing the PRIMARY FLIGHT COMPUTERS disconnect switch to DISC puts the flight control system in which mode?

A

Direct

45
Q

Which of the following CDU inputs is NOT required to calculate the stabilizer green band?

A

Flap setting

46
Q

The Manual Trim Cancel switch _____ rudder inputs from TAC.

A

has no effect on

47
Q

Which flight control system function is not available when operating in the secondary mode?

A

autopilot

48
Q

Roll control is provided by movement of the ______.

A

flaperons, ailerons, and asymmetrical spoilers

49
Q

Slat load relief is available in the ______ flap mode because slats are fully extended in all flap positions in that mode.

A

secondary

50
Q

In the secondary flight control mode, the primary pitch trim switches and the alternate pitch trim levers move the _______.

A

stabilizer directly (there is no trim reference speed)

51
Q

Automatic landings can be made using ______.

A

Flaps 20 or 30 with one or two engines operating

52
Q

When the autopilot is engaged, it sends commands directly to the ______

A

PFCs

53
Q

In the Direct flight control mode, which of the following is operative?

A

Pitch trim

54
Q

The wheel-to-rudder cross-tie system provides ______.

A

up to 8 degrees of rudder deflection using control wheel inputs.

55
Q

Which of the following sequences illustrates the flight control process when the autopilot is engaged?

A

Autopilot Inputs>PFCs>ACEs>Control Surfaces

56
Q

The pitch envelope protection functions ______ the pilot’s control authority

A

do not reduce

57
Q

What are the three primary flight control system modes?

A

Normal, Secondary, and Direct.

58
Q

The dual alternate pitch trim levers on the control pedestal _______.

A

have priority over the control yoke trim switches in all flight control modes.

59
Q

What action may cause an automatic reversion to the secondary flight control mode?

A

PFC or related airplane system faults

60
Q

What envelope protection do you have in the Normal Flight Control Mode?

A

Overspeed, bank angle, and stall

61
Q

When does the rudder become effective?

A

Approximately 80 knots

62
Q

The Primary Flight Computers automatically control pitch to maintain a relatively constant flight path. There is no need for additional control column back pressure to compensate for turns using up to ______ degrees of bank.

A

30

63
Q

The Manual Trim Cancel Switch is available in all flight control modes except the _____ mode.

A

direct

64
Q

Load relief is available for ______.

A

flaps in the primary mode.

65
Q

Doug spent several hours creating this Brainscape class. How can I show my appreciation for using these flashcards?

A

Make a small donation to his favorite charity! You can use PayPal!
https://www.flyingsamaritansmotherlode.org/

United Airlines 777 Airplane Systems Study Guide v5.2 (9/26/2023) (14 decks)

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