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AB's Dreamliner Study > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

In the normal flight control mode in the air, pushing both pitch trim switches, either on the control wheel or the alternate pitch trim switches, directly moves the stabilizer.

True
False

A

False

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2
Q

Individual flight control surface actuators are controlled by the…

Primary Flight Computers (PFCs).

Permanent Magnet Generators (PMGs).

Actuator Control Electronics (ACEs).

Permanent Magnet Alternators (PMAs).

A

Actuator Control Electronics (ACEs).

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3
Q

The three primary flight control modes are…

normal, secondary and direct.

primary, secondary and alternate.

normal, alternate and direct.

primary, reversion and backup.

A

normal, secondary and direct.

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4
Q

Wheel to rudder cross-tie function reduces maximum sideslip and vertical fin loads. This function is only available in…

normal and secondary modes.

secondary mode.

normal and direct modes.

secondary and direct modes.

A

secondary and direct modes.

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5
Q

There are _____ slats on each wing.

4

5

6

3

A

6

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6
Q

With the autopilot engaged and the flight control system in normal mode, Mode Control Panel (MCP) inputs are sent from the MCP to the…

Actuator Control Electronics (ACE) to Primary Flight Computers (PFC) then to the control surfaces.

Actuator Control Electronics (ACE) then to the control surfaces

autopilots to Primary Flight Computers (PFC) to Actuator Control Electronics (ACE) then to the control surfaces.

autopilots to Actuator Control Electronics (ACE) then to the control surfaces.

A

autopilots to Primary Flight Computers (PFC) to Actuator Control Electronics (ACE) then to the control surfaces

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7
Q

When the flight control system is in the direct mode of operation, aircraft handling qualities are almost the same as the…

secondary mode.

normal mode.

reversion mode.

primary mode

A

secondary mode.

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8
Q

During takeoff or landing, the _____ calculate(s) if a tail strike is imminent and decrease elevator deflection, if required to reduce the potential for tail contact with the ground. Tailstrike protection is only available in Normal flight control mode.

Actuator Control Electronics (ACE)

Primary Flight Computers (PFCs)

Flight Management Computer (FMC)

Attitude Heading Reference Unit (AHRU)

A

Primary Flight Computers (PFCs)

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9
Q

In normal mode, on the ground above ____ knots groundspeed, the flight control system attempts to maintain a yaw rate near zero by commanding rudder to counter the majority of the yawing moment due to an engine failure.

80

75

70

60

A

60

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10
Q

Automatic rudder trim is provided in the normal flight control mode. Manual rudder trim operation is available…

only in normal mode.

only in secondary mode.

in normal, secondary and direct modes.

only in direct mode.

A

in normal, secondary and direct modes.

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11
Q

Manual rudder trim is available at both a low and high rate. Manual rudder trim inputs are automatically zeroed out during takeoff roll when groundspeed exceeds…

75 knots.

80 knots.

100 knots.

30 knots.

A

30 knots.

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12
Q

When will the spoilers extend on landing with the speedbrake in the ARMED position?

Main wheel spin-up and engines at idle thrust.

Main gear trucks untilt and both thrust levers not in takeoff range.

Nose gear compression and both thrust levers not in takeoff range.

Main wheel spin-up and flaps greater than 25.

A

Main gear trucks untilt and both thrust levers not in takeoff range.

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13
Q

The spoilers automatically retract when…

on the ground, either thrust lever moved to idle.

in the air, flaps selected greater than 25.

in the air, either thrust lever is beyond 90% full travel.

All of the above are correct.

A

in the air, either thrust lever is beyond 90% full travel.

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14
Q

The Autodrag function operates by deflecting the ailerons downward and raising the two most outboard spoilers. It functions only in landing configuration, flaps 25 or 30 and thrust levers at idle. Autodrag is gradually removed below 500 feet AGL. It’s purpose is to assist in…

preventing flap overspeeds during a light-weight go-around.

capturing VNAV path during and RNAV departure.

slowing while on and ILS approach.

glideslope/glidepath capture from above.

A

glideslope/glidepath capture from above.

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15
Q

To protect against inadvertent deployment during cruise, flap and slat extension from the UP position is inhibited when speed is more than 260 KIAS or altitude is above approximately 20,000 feet.

True for all flaps and slat modes

True for alternate flap and slat mode only

True for primary and secondary flap and slat modes only

False

A

True for primary and secondary flap and slat modes only

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16
Q

Starting from flaps UP, selection of flaps 1 will move the…

flaps to 1. The slats remain retracted.

slats to the fully extended position. The flaps remain retracted.

flaps to 1 and the slats to the middle position.

slats to the middle position. The flaps remain retracted.

A

slats to the middle position. The flaps remain retracted.

17
Q

If airspeed exceeds 225 KIAS with the slats fully extended, they retract to the middle position and LOAD RELIEF (white) is displayed on the EICAS. For all lever positions except Up, the slats are driven to their extend position when the airspeed is below 225 KIAS. Slat load relief is available in the…

secondary mode.

primary, secondary and alternate modes.

alternate mode.

primary mode.

A

secondary mode.

18
Q

Slat autogap and pregap functions exist to increase wing camber, thus increasing lift and stall margin. Autogap is only available in the primary mode when the slats are in the middle position and the airspeed is…

above 250 KIAS.

below 225 KIAS.

above 225 KIAS.

at 200 KIAS.

A

below 225 KIAS.

19
Q

In the secondary flap mode, the system is too slow to respond to an autogap request, so a pregap function exists. When the slats are in the secondary mode of operation, the slats automatically move to the fully extended position from the middle position when…

the slats are in the middle position and the airspeed is below 225 KIAS.

the flap lever is not UP and airspeed is less than 225 KIAS.

the flap lever is moved to the 1 position and airspeed is above 235 KIAS.

the airspeed is below 250 KIAS.

A

the flap lever is not UP and airspeed is less than 225 KIAS.

20
Q

Cruise flaps is a function that improves the airplane’s cruise performance by symmetrically moving the flaps, ailerons, flaperons, and spoilers, varying the camber of the wings and thus reducing drag. Cruise flaps are…

only available in the normal mode. Cruise flaps are automatic and require no pilot interaction.
selected by moving the slat lever to the 1 position.
selected by pushing the cruise flaps switch on the overhead panel.
selected by moving the flap lever to the 1 position.

A

only available in the normal mode. Cruise flaps are automatic and require no pilot interaction.

21
Q

In the normal mode, primary and alternate pitch trim operates differently on the ground than in flight. On the ground, the stabilizer is directly positioned when the pilot uses the pitch trim switches. In flight…

the pitch trim switches do not position the stabilizer directly.

the pitch trim switches make inputs to the Primary Flight Computers (PFCs) to change the trim reference speed.

when pilot trim inputs are made, the PFCs automatically move the elevators to achieve the trim change, then moves the stabilizer to streamline the elevator.

All of the above are correct.

A

All of the above are correct.

22
Q

Alternate mode flap and slat extension is limited to the slats _____________ and flaps ______.

middle position, 30

fully extended position, 20

fully extended position, 30

middle position, 20

A

middle position, 20

23
Q

The indication of a failed flight control surface or trim function on the flight control synoptic is a(n)…

amber border with an X inside.

white border with an amber X inside.

cyan border with a white X inside.

green border with an X inside.

A

amber border with an X inside.

24
Q

The ailerons, spoilers, and flaperons droop with the trailing edge flaps to improve slow speed performance.

True

False

A

True

25
Q

The 787 has _______ spoilers per side.

8

7

5

6

A

7

26
Q

With the autopilot off, moving the the control wheel pitch trim switches in the normal flight control mode while airborne changes the trim reference speed.

True

False

A

True

27
Q

What is used to validate the FMC calculated green band?

Main gear truck tilt sensor data

Information from main gear and nose gear oleo proximity switches

Main and nose-gear tire pressure data

Two nose gear pressure transducers provide actual airplane gross weight and CG information.

A

Two nose gear pressure transducers provide actual airplane gross weight and CG information.

28
Q

When the PRIMARY FLIGHT COMPUTERS DISC light is illuminated (amber),…

the primary flight computers are inoperative.

the primary flight computers are disconnected either automatically or manually and the system is in the secondary mode.

the primary flight computers are disconnected either automatically or manually and the system is in the direct mode.

the primary flight computers are disconnected and are rebooting.

A

the primary flight computers are disconnected either automatically or manually and the system is in the direct mode.

29
Q

Flight control system secondary mode can be manually selected.

True

False

A

False

30
Q

The flap lever moves during flap load relief operation.

True

False

A

False

AB's Dreamliner Study (15 decks)

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