Boeing B777 - Flight controls

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

The CDU displays the VERIFY TRIM message in the scratchpad

The green band and the pointer are not displayed

The green band on the indicator turns amber

The EICAS message STAB GREENBAND displays

Correct! Wrong!

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

None. Speedbrakes are disabled.

Spoilers 5,10

Spoilers 4,11

Spoilers 1-7

Correct! Wrong!

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

Autopilot is not available.

All statements are correct.

Protection features are NOT available.

The system operates in direct mode

Correct! Wrong!

What does the EICAS message FLIGHT CONTROL MODE indicate?

The Flap/Slat electronics units are inoperative.

Multiple flight control surfaces are inoperative.

Flight control system is operating in the secondary mode.

Flight control system faults are detected.

Correct! Wrong!

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

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

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

Take-off, rejected take-off and landing.

Take-off, rejected take-off and approach.

Correct! Wrong!

Which statement is NOT true regarding the flap position indicator?

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

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

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

The flap position indicator is on the PFD.

Correct! Wrong!

What control do the flaperons and ailerons provide?

Roll control assisted by asymmetric spoilers.

Increased wing lift and decreased stall speed.

Pitch control assisted by a movable horizontal stabilizer.

Yaw control assisted by the rudder.

Correct! Wrong!

What happens if uncommanded stabilizer motion is sensed?

The A/P engages automatically.

Power to the affected STCM is shut off.

The stabilizer is locked in place.

Power to all STCMs is shut off.

Correct! Wrong!

What does the PRI FLIGHT COMPUTERS EICAS message indicate?

Flight control modes are not affected.

The system is in primary mode.

The system is in the secondary mode.

The system is in direct mode

Correct! Wrong!

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

Spoilers 5 and 8.

Spoilers 1 and 14.

Spoilers 5 and 10.

Spoilers 4 and 11.

Correct! Wrong!

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

Autopilot and envelope protection are NOT available.

Thrust Asymmetry is NOT available.

Envelope protection features are NOT available.

All spoilers remain usable.

Correct! Wrong!

Do the ailerons increase lift for takeoff?

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

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

No the ailerons are used only at high speed

Yes the ailerons move down with flaps 15 and 20.

Correct! Wrong!

When do the alternate pitch trim levers move the stabilizer?

Only on the ground.

The levers move the stabilizer directly at all times.

When the autopilot is disengaged.

During flight control secondary and direct modes.

Correct! Wrong!

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

Only on the ground.

All the time.

Only during approaches.

During engine out go-arounds.

Correct! Wrong!

Are the PFCs and ACEs used in direct mode?

It is not possible.

Only PFCs

Only ACEs

Both PFCs and ACEs

Correct! Wrong!

Which of these flight control surfaces assist in roll control?

Ailerons and flaperons.

Slats and spoilers.

Slats only.

Flaperons and slats.

Correct! Wrong!

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

Position feedback transducers.

Primary Flight Computers (PFCs).

Power Control Units (PCUs).

Actuator Control Electronics (ACES).

Correct! Wrong!

What is true about turn compensation?

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

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

It is available only in the secondary mode.

The turn compensation switch is on the overhead panel.

Correct! Wrong!

Which of the following is not a stall protection feature?

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

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.

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

Correct! Wrong!

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

All statements are correct.

Power to the stabilizer position indicator is lost.

The FMC weight entry and CG may be incorrect.

The stabilizer position indicator is unreliable.

Correct! Wrong!

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

Only on the ground, on pitch trim indicators.

Always on EICAS

Only during landing, on CDU.

Only in flight, on control wheel.

Correct! Wrong!

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

Ailerons, flaperons and spoilers.

Ailerons, flaperons and flaps.

Ailerons, flaperons and elevators.

Ailerons, flaperons and slats.

Correct! Wrong!

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

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

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

Speedbrake is UP after landing.

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

Correct! Wrong!

Which of these flight control surfaces aid in roll control?

Slats and spoilers only.

Ailerons, flaperons and spoilers.

Krueger flaps, slats and spoilers.

Flaperons and slats.

Correct! Wrong!

Which of the following are NOT stall protection features?

In landing configuration, leading slats move to gapped position.

The auto-throttle disconnects.

The auto-throttle advances to maintain minimum airspeed.

Stick shaker activates.

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.

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

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

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

Correct! Wrong!

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

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

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

Stabilizer asymmetry compensation is inoperative.

The centre stabilizer control path is inoperative

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?

13 degrees.

7.5 degrees.

8 degrees.

9.5 degrees.

Correct! Wrong!

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

Envelope protection features are NOT available.

The autopilot is available.

The Primary Flight Computers (PFCs) are NOT available.

Actuator Control Electronics (ACES) are NOT available.

Correct! Wrong!

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

For all configuration changes.

During airspeed changes only.

When thrust is changed.

When the landing gear is extended.

Correct! Wrong!

What is the correct statement?

All statements are correct.

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

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

Aileron trim in inhibited when the autopilot is engaged.

Correct! Wrong!

What does stall warning consist of?

Stall warning horn.

Stick shaker followed by stall warning.

EICAS message 'STALL'.

Stick shaker but NO stall warning.

Correct! Wrong!

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

The Primary Flight Computers (PFCs) are NOT available.

Envelope protection features are available.

Actuator Control Electronics (ACES) are NOT available.

Autopilot and envelope are NOT available.

Correct! Wrong!

What principle is used when direct mode is in use?

Electric signals.

Direct control surface deflection.

Hydraulic signal modulation.

Mechanical linkage.

Correct! Wrong!

What is FALSE about Flap/Slat Load Relief?

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.

Re-extension is limited to the commended flap position.

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

Correct! Wrong!

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

Engages gust suppression.

Disconnects hydraulic supply to STCM.

Connects hydraulic supply to STCM.

Disable direct rudder control.

Correct! Wrong!

Which one of the following statements is incorrect?

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

Spoilers 4 and 11 are mechanically operated.

Spoilers 5 and 10 are available as ground spoilers only.

The spoilers augment roll control.

Correct! Wrong!

What is FALSE about stabilizer trim?

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

As airspeed increases, trim rate increases.

As airspeed increases, trim rate decreases.

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

Correct! Wrong!

When does TAC automatically add rudder to minimize yaw?

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

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

When the engine is damaged or surges.

When an engine is at idle thrust.

Correct! Wrong!

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

Spolers 5 and 10

Spoilers 1 to 7

Spoilers 1 and 14

Spoilers 8 to 14

Correct! Wrong!

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

Normal.

Secondary.

Direct.

All flight control modes.

Correct! Wrong!

What is wheel to rudder cross-tie?

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

Ability to dampen Dutch roll with control wheel only.

Ability to override rudder inputs with the control wheel inputs.

Ability to control rudder trim with control wheel inputs.

Correct! Wrong!

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

200 knot.

220 knot.

180 knot.

210 knot.

Correct! Wrong!

Which one of the following statements is false?

Spoilers 4 and 11 are mechanically operated.

There are 12 spoilers.

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

When augmenting roll control, the spoilers work asymmetrically.

Correct! Wrong!

What can you say about the FLAPS DRIVE EICAS message?

Arm the alternate system.

The flaps will operate in secondary mode.

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

The EICAS flap indicator display turns magenta.

Correct! Wrong!

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

Secondary FCC.

Primary Flight Computers (PFCs).

Actuator Control Electronics (ACES).

Electro hydraulic servos.

Correct! Wrong!

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

Flaperons.

Slats only.

Krueger flaps and slats.

Flaperons and slats.

Correct! Wrong!

Which trim control is inhibited when the autopilot is engaged?

Alternate pitch trim levers.

Control wheel pitch trim switches.

Alternate control pitch trim.

Trim control pitch

Correct! Wrong!

When do the PFCs make self-test?

After hydraulic system depressurization.

After hydraulic system pressurization.

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

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

Correct! Wrong!

Under what conditions does the SPEEDBRAKE EXTENDED EICAS message display?

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

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

Any time speed-brakes are extended.

After landing, if speed-brakes fail to extend.

Correct! Wrong!

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

Mechanical.

Hydraulic.

Pneumatic.

Electric.

Correct! Wrong!

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

During speedbrake extension or retraction.

All statements are correct.

During airspeed changes.

During flap extension or retraction

Correct! Wrong!

How many spoiler panels are used as speedbrakes?

A total of 14 spoiler panels.

A total of 12 spoiler panels.

A total of 8 spoiler panels.

A total of 10 spoiler panels.

Correct! Wrong!

Boeing B777 – Flight controls

Quiz

Boeing B777 - Flight controls

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

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

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

What does the EICAS message FLIGHT CONTROL MODE indicate?

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

Which statement is NOT true regarding the flap position indicator?

What control do the flaperons and ailerons provide?

What happens if uncommanded stabilizer motion is sensed?

What does the PRI FLIGHT COMPUTERS EICAS message indicate?

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

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

Do the ailerons increase lift for takeoff?

When do the alternate pitch trim levers move the stabilizer?

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

Are the PFCs and ACEs used in direct mode?

Which of these flight control surfaces assist in roll control?

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

What is true about turn compensation?

Which of the following is not a stall protection feature?

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

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

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

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

Which of these flight control surfaces aid in roll control?

Which of the following are NOT stall protection features?

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

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

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?

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

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

What is the correct statement?

What does stall warning consist of?

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 is FALSE about Flap/Slat Load Relief?

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

Which one of the following statements is incorrect?

What is FALSE about stabilizer trim?

When does TAC automatically add rudder to minimize yaw?

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

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

What is wheel to rudder cross-tie?

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

Which one of the following statements is false?

What can you say about the FLAPS DRIVE EICAS message?

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

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

Which trim control is inhibited when the autopilot is engaged?

When do the PFCs make self-test?

Under what conditions does the SPEEDBRAKE EXTENDED EICAS message display?

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

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

How many spoiler panels are used as speedbrakes?