Boeing B777 - Flight controls

Are the PFCs and ACEs used in direct mode?

It is not possible.

Only PFCs

Both PFCs and ACEs

Only ACEs

Correct! Wrong!

Which of the following is not correct concerning the flight control system when operating in secondary mode?

All spoilers remain usable.

Envelope protection features are NOT available.

Thrust Asymmetry is NOT available.

Autopilot and envelope protection are NOT available.

Correct! Wrong!

Which of these flight control surfaces assist in roll control?

Slats only.

Slats and spoilers.

Ailerons and flaperons.

Flaperons and slats.

Correct! Wrong!

What are the initial steps to extend the flaps using the alternate flap system?

Arm ALT FLAPS ARM switch. Select NORMAL FLAPS selector to 20.

Arm ALT FLAPS ARM switch. Select ALT FLAPS selector to EXT.

Arm ALT FLAPS ARM switch. Select ALT FLAPS selector to OFF.

Push ALT FLAPS ARM switch. Select ALT FLAPS selector to EXT.

Correct! Wrong!

In direct mode, which of the following components of the primary flight control system are NOT operating?

Electro hydraulic servos.

Secondary FCC.

Actuator Control Electronics (ACES).

Primary Flight Computers (PFCs).

Correct! Wrong!

When do the control wheel stabilizer trim switches control stabilizer movement directly?

During engine out go-arounds.

Only during approaches.

Only on the ground.

All the time.

Correct! Wrong!

When are pitch trim changes required with the 777 'fly-by-wire' system?

When thrust is changed.

For all configuration changes.

During airspeed changes only.

When the landing gear is extended.

Correct! Wrong!

How many spoiler panels are used as speedbrakes?

A total of 8 spoiler panels.

A total of 12 spoiler panels.

A total of 14 spoiler panels.

A total of 10 spoiler panels.

Correct! Wrong!

What is the effect of placing a stabilizer cutout switch to cutout?

Engages gust suppression.

Connects hydraulic supply to STCM.

Disable direct rudder control.

Disconnects hydraulic supply to STCM.

Correct! Wrong!

Which statement is true when the primary flight computer disconnect switch is positioned to DISC?

Protection features are NOT available.

All statements are correct.

Autopilot is not available.

The system operates in direct mode

Correct! Wrong!

Which of the following is not a stall protection feature?

Use of alternate pitch trim levers reduces the column forces below the minimum manoeuvring speed.

The pilot must apply continuous aft column force to maintain airspeed below the manoeuvring speed.

Stab trim is inhibited in the nose up direction at approximately the minimum manoeuvring speed.

The out-of-trim forces increase above normal for a condition above the minimum manoeuvre speed.

Correct! Wrong!

Which of the following is true when the flight control system is operating in secondary mode?

The autopilot is available.

The Primary Flight Computers (PFCs) are NOT available.

Envelope protection features are NOT available.

Actuator Control Electronics (ACES) are NOT available.

Correct! Wrong!

What is the maximum speed of wheel to rudder cross-tie operation?

210 knot.

220 knot.

200 knot.

180 knot.

Correct! Wrong!

What power source is used for the actuation of all primary flight controls?

Mechanical.

Pneumatic.

Hydraulic.

Electric.

Correct! Wrong!

Which of these flight control surfaces droop when the trailing edge flaps extend?

Slats only.

Flaperons.

Flaperons and slats.

Krueger flaps and slats.

Correct! Wrong!

Which spoilers will be locked out in secondary and direct modes?

Spoilers 1 and 14

Spoilers 1 to 7

Spoilers 8 to 14

Spolers 5 and 10

Correct! Wrong!

A wheel to rudder cross-tie function provides the capability of being able to control the initial effects of an engine failure using control wheel inputs only. How many degrees of rudder deflection can be obtained from control wheel inputs?

8 degrees.

7.5 degrees.

9.5 degrees.

13 degrees.

Correct! Wrong!

When does TAC automatically add rudder to minimize yaw?

When the engine is damaged or surges.

When engine thrust loss is sensed in the normal and secondary mode.

When an engine is at idle thrust.

When one engine differs by 10 present or more from the other engine.

Correct! Wrong!

When do the PFCs make self-test?

After hydraulic system depressurization.

After the "PRIMARY FLIGHT COMPUTERS" EICAS message is displayed.

After hydraulic system shutdown (HYD PRESS SYS L+C+R).

After hydraulic system pressurization.

Correct! Wrong!

What could cause the STAB GREENBAND EICAS message to be displayed?

The FMC weight entry and CG may be incorrect.

Power to the stabilizer position indicator is lost.

All statements are correct.

The stabilizer position indicator is unreliable.

Correct! Wrong!

What happens if uncommanded stabilizer motion is sensed?

Power to the affected STCM is shut off.

The A/P engages automatically.

The stabilizer is locked in place.

Power to all STCMs is shut off.

Correct! Wrong!

Which trim control is inhibited when the autopilot is engaged?

Alternate control pitch trim.

Control wheel pitch trim switches.

Alternate pitch trim levers.

Trim control pitch

Correct! Wrong!

When do the alternate pitch trim levers move the stabilizer?

During flight control secondary and direct modes.

Only on the ground.

When the autopilot is disengaged.

The levers move the stabilizer directly at all times.

Correct! Wrong!

Which control surfaces are used for roll control on the B777?

Ailerons, flaperons and flaps.

Ailerons, flaperons and elevators.

Ailerons, flaperons and spoilers.

Ailerons, flaperons and slats.

Correct! Wrong!

Do the ailerons increase lift for takeoff?

No the ailerons are used only at high speed

No, the ailerons assist roll control only during high speed flight.

Yes the ailerons move down with flaps 15 and 20.

Yes the ailerons move down with flaps 5, 15 and 20.

Correct! Wrong!

Auto speed-brakes protection is provided for which phases of flight?

Take-off, rejected take-off and approach.

Take-off, rejected take-off, approach and landing.

Take-off, rejected take-off and approach below 200 feet.

Take-off, rejected take-off and landing.

Correct! Wrong!

Which one of the following statements is incorrect?

Spoilers 5 and 10 are available as ground spoilers only.

The extension of speed-brakes in the landing configuration is prohibited.

Spoilers 4 and 11 are mechanically operated.

The spoilers augment roll control.

Correct! Wrong!

Which statement is NOT true regarding the flap position indicator?

The flap position indicator is magenta when slats and flaps are in transit.

The flap position indicator is on the PFD.

There are three different displays: Primary, Secondary and Alternate.

The flap position indicator appears on EICAS when flaps begin to extend.

Correct! Wrong!

Automatic speed-brake operation is provided for which flight control system modes?

Normal.

Secondary.

All flight control modes.

Direct.

Correct! Wrong!

Which pair of spoilers is mechanically controlled through a cable from the control wheel?

Spoilers 4 and 11.

Spoilers 1 and 14.

Spoilers 5 and 10.

Spoilers 5 and 8.

Correct! Wrong!

What is the correct statement?

Moving the alternate pitch trim levers with the autopilot engaged does not move the stabilizer.

Moving the alternate pitch trim levers during stall or overspeed protection does not move the stabilizer

Aileron trim in inhibited when the autopilot is engaged.

All statements are correct.

Correct! Wrong!

Where - and when - is the stabilizer "green band" displayed?

Only in flight, on control wheel.

Only during landing, on CDU.

Only on the ground, on pitch trim indicators.

Always on EICAS

Correct! Wrong!

What happens when the stabilizer signal is not present or is invalid?

The green band and the pointer are not displayed

The green band on the indicator turns amber

The CDU displays the VERIFY TRIM message in the scratchpad

The EICAS message STAB GREENBAND displays

Correct! Wrong!

What is the meaning of the EICAS advisory message STABILIZER CUTOUT?

Both stabilizer cut-out switches are in the CUTOUT position.

Stabilizer asymmetry compensation is inoperative.

One stabilizer cut-out switch is in the CUTOUT position.

The centre stabilizer control path is inoperative

Correct! Wrong!

Under what conditions does the SPEEDBRAKE EXTENDED EICAS message display?

After landing, if speed-brakes fail to extend.

Speedbrakes are extended and landing flaps are selected or RA is between 15 and 800 feet.

Any time speed-brakes are extended.

Speedbrakes are extended and the airplane is above 800 feet RA.

Correct! Wrong!

In the normal mode, a control column input or trim change is required to maintain a constant flight path:

During flap extension or retraction

During speedbrake extension or retraction.

All statements are correct.

During airspeed changes.

Correct! Wrong!

Which one of the following statements is false?

Spoilers 4 and 11 are mechanically operated.

When augmenting roll control, the spoilers work asymmetrically.

There are 12 spoilers.

At cruise speed, spoilers 5 and 10 are locked out.

Correct! Wrong!

What is true about turn compensation?

The turn compensation switch is on the overhead panel.

It is not available if the bank angle is above 30 degrees.

It is available only in the secondary mode.

Elevator input is NOT required if the airplane is in a 30 degree bank.

Correct! Wrong!

In direct mode, which of the following components of fly-by-wire are NOT operating?

Primary Flight Computers (PFCs).

Power Control Units (PCUs).

Position feedback transducers.

Actuator Control Electronics (ACES).

Correct! Wrong!

Which of these flight control surfaces aid in roll control?

Krueger flaps, slats and spoilers.

Flaperons and slats.

Ailerons, flaperons and spoilers.

Slats and spoilers only.

Correct! Wrong!

What is wheel to rudder cross-tie?

Ability to dampen Dutch roll with control wheel only.

Ability to control rudder trim with control wheel inputs.

Ability to override rudder inputs with the control wheel inputs.

Ability to control initial effects of an engine failure with control wheel only.

Correct! Wrong!

What can you say about the FLAPS DRIVE EICAS message?

The EICAS flap indicator display turns magenta.

The message is displayed when the flap drive mechanism has been shut down due to an asymmetry.

Arm the alternate system.

The flaps will operate in secondary mode.

Correct! Wrong!

What is FALSE about stabilizer trim?

As airspeed increases, trim rate decreases.

As airspeed increases, trim rate increases.

The green band on the stabilizer position indicator shows the stabilizer trim range for take-off.

You can use the pitch trim switches on the yoke to set the trim.

Correct! Wrong!

Which of the following are NOT stall protection features?

In landing configuration, leading slats move to gapped position.

The auto-throttle advances to maintain minimum airspeed.

Stick shaker activates.

The auto-throttle disconnects.

Correct! Wrong!

What does the EICAS message FLIGHT CONTROL MODE indicate?

Multiple flight control surfaces are inoperative.

The Flap/Slat electronics units are inoperative.

Flight control system is operating in the secondary mode.

Flight control system faults are detected.

Correct! Wrong!

What does the PRI FLIGHT COMPUTERS EICAS message indicate?

The system is in direct mode

The system is in the secondary mode.

The system is in primary mode.

Flight control modes are not affected.

Correct! Wrong!

What does stall warning consist of?

Stick shaker but NO stall warning.

Stall warning horn.

EICAS message 'STALL'.

Stick shaker followed by stall warning.

Correct! Wrong!

Which spoilers are available as speedbrakes (secondary and direct modes)?

Spoilers 5,10

Spoilers 1-7

None. Speedbrakes are disabled.

Spoilers 4,11

Correct! Wrong!

What is FALSE about Flap/Slat Load Relief?

When airspeed is reduced the flap automatically re-extend as airspeed allows.

Re-extension is limited to the commended flap position.

Flap load relief is available in the primary and secondary modes.

The Flap lever does not move during flap condition and shows actual flap position.

Correct! Wrong!

What control do the flaperons and ailerons provide?

Yaw control assisted by the rudder.

Increased wing lift and decreased stall speed.

Pitch control assisted by a movable horizontal stabilizer.

Roll control assisted by asymmetric spoilers.

Correct! Wrong!

Which of the following is true when the flight control system is operating in secondary mode?

Autopilot and envelope are NOT available.

Envelope protection features are available.

Actuator Control Electronics (ACES) are NOT available.

The Primary Flight Computers (PFCs) are NOT available.

Correct! Wrong!

What principle is used when direct mode is in use?

Electric signals.

Direct control surface deflection.

Mechanical linkage.

Hydraulic signal modulation.

Correct! Wrong!

What causes the SPEEDNRAKE EXTENDED message to display on the EICAS?

Speedbrake is UP after landing.

Speedbrake is extended when radio altitude is between 15 and 800 ft.

Speedbrake is down when either thrust lever is advanced to a takeoff position.

On the ground when either reverse thrust lever is moved to the reverse idle detent.

Correct! Wrong!

Boeing B777 – Flight controls

Quiz

Boeing B777 - Flight controls

Are the PFCs and ACEs used in direct mode?

Which of the following is not correct concerning the flight control system when operating in secondary mode?

Which of these flight control surfaces assist in roll control?

What are the initial steps to extend the flaps using the alternate flap system?

In direct mode, which of the following components of the primary flight control system are NOT operating?

When do the control wheel stabilizer trim switches control stabilizer movement directly?

When are pitch trim changes required with the 777 'fly-by-wire' system?

How many spoiler panels are used as speedbrakes?

What is the effect of placing a stabilizer cutout switch to cutout?

Which statement is true when the primary flight computer disconnect switch is positioned to DISC?

Which of the following is not a stall protection feature?

Which of the following is true when the flight control system is operating in secondary mode?

What is the maximum speed of wheel to rudder cross-tie operation?

What power source is used for the actuation of all primary flight controls?

Which of these flight control surfaces droop when the trailing edge flaps extend?

Which spoilers will be locked out in secondary and direct modes?

A wheel to rudder cross-tie function provides the capability of being able to control the initial effects of an engine failure using control wheel inputs only. How many degrees of rudder deflection can be obtained from control wheel inputs?

When does TAC automatically add rudder to minimize yaw?

When do the PFCs make self-test?

What could cause the STAB GREENBAND EICAS message to be displayed?

What happens if uncommanded stabilizer motion is sensed?

Which trim control is inhibited when the autopilot is engaged?

When do the alternate pitch trim levers move the stabilizer?

Which control surfaces are used for roll control on the B777?

Do the ailerons increase lift for takeoff?

Auto speed-brakes protection is provided for which phases of flight?

Which one of the following statements is incorrect?

Which statement is NOT true regarding the flap position indicator?

Automatic speed-brake operation is provided for which flight control system modes?

Which pair of spoilers is mechanically controlled through a cable from the control wheel?

What is the correct statement?

Where - and when - is the stabilizer "green band" displayed?

What happens when the stabilizer signal is not present or is invalid?

What is the meaning of the EICAS advisory message STABILIZER CUTOUT?

Under what conditions does the SPEEDBRAKE EXTENDED EICAS message display?

In the normal mode, a control column input or trim change is required to maintain a constant flight path:

Which one of the following statements is false?

What is true about turn compensation?

In direct mode, which of the following components of fly-by-wire are NOT operating?

Which of these flight control surfaces aid in roll control?

What is wheel to rudder cross-tie?

What can you say about the FLAPS DRIVE EICAS message?

What is FALSE about stabilizer trim?

Which of the following are NOT stall protection features?

What does the EICAS message FLIGHT CONTROL MODE indicate?

What does the PRI FLIGHT COMPUTERS EICAS message indicate?

What does stall warning consist of?

Which spoilers are available as speedbrakes (secondary and direct modes)?

What is FALSE about Flap/Slat Load Relief?

What control do the flaperons and ailerons provide?

Which of the following is true when the flight control system is operating in secondary mode?

What principle is used when direct mode is in use?

What causes the SPEEDNRAKE EXTENDED message to display on the EICAS?