Airbus A320 – Landing Gear - SmartCockpit - Airline training guides, Aviation, Operations, Safety

Landing gear indicator panel UNLK light illuminates red if:

Gear is not selected down by 1,000 ft RA.

Gear is extended normally and doors are not closed.

Gear is extended by gravity and doors are not closed.

Gear is not locked in selected position.

Correct! Wrong!

MAX autobrake mode can be armed in flight.

True.

False.

Correct! Wrong!

MAX autobrake mode cannot be armed in flight.

During pushback, the engine 2 has been started and the NW STRG DISC memo has changed to amber. What does it mean?

The NW STRG disconnect mechanism has failed.

The memo has become amber because one engine is running.

The yellow hydraulic system is now pressurized and the amber caption is a warning not to move the handwheel.

The nose wheel steering is being reconnected by ground personnel. It is amber because the pin is removed.

Correct! Wrong!

You have just set the parking brake handle to ON. Is it still possible to check the main brake system using the toe brakes?

Yes. As soon as you press the brake pedals the BRAKES indicator will read main system pressure.

No. When the PARK BRK is set, the other braking modes are deactivated.

No. It is not possible to press hard enough to obtain an accurate reading.

Correct! Wrong!

When the flight crew operates the crank handle, the cutout valve shuts off hydraulic pressure to the landing gear system and depressurizes it.

False.

True.

Correct! Wrong!

If the parking brake is activated and no yellow hydraulic or accumulator brake pressure is available, then the normal braking system can be applied via the brake pedals.

True.

False.

Correct! Wrong!

Which ADIRS close the safety valve of the green hydraulic supply when speed is above 260 kt.

ADIRS 2 and 3.

ADIRS 2 or 3.

ADIRS 1 and 3.

ADIRS 1 and 2.

Correct! Wrong!

The steering system centers the nose wheel automatically:

After liftoff.

When the hydraulic pressure is released after takeoff.

When the landing gear lever is set to UP.

Correct! Wrong!

There are two triangles for each gear on the ECAM WHEEL page. What do they represent?

Each triangle represents the position detected by one of the two computers systems.

Each triangle represents one of the braking systems available for that gear.

Each triangle represents one wheel on the gear.

The front triangle indicates the position of that gear, and the back triangle indicates the status of the brakes for that gear.

Correct! Wrong!

The braking system is designed to hold the aircraft in a stationary position when a high thrust level is applied on at least one engine. It is not designed to hold the aircraft when high thrust level is applied on both engines. During ground procedures that require a thrust increase with braking, the flight crew must ensure that the aircraft remains stationary.

False.

True.

Correct! Wrong!

The braking system is not designed to hold the aircraft in a stationary position when a high thrust level is applied on at least one engine.

What does each turn of the gravity gear extension handle do?

Open gear doors, unlock gear, drop gear.

Open gear doors, drop gear, shut doors.

Shutoff hydraulic pressure, open doors, unlock gear.

Open gear doors, shutoffs hydraulics, unlock gear, drop gear.

Correct! Wrong!

What happens to the other brake modes when parking brakes are applied?

Antiskid mode only is deactivated.

All other braking modes and antiskid are deactivated.

There is no change.

Correct! Wrong!

If the brake system automatically transitions to alternate brakes with the A/SKID and N/W STRG switch in the ON position, which of the following will be available?

Brakes, auto brakes, anti-skid.

Auto brakes and anti-skid.

Anti-skid.

Only auto brakes.

Correct! Wrong!

The landing gear indicator panel receives the information from micro switches and proximity detectors connected to:

BSCU (Braking Steering Control Unit).

LGCIU 2 (Landing Gear Control and Interface Unit).

LGCIU 1 (Landing Gear Control and Interface Unit).

BSCU (Braking Steering Control Unit) and LGCIU 2.

Correct! Wrong!

During the approach you get master warning and ECAM "GEAR NOT DOWN". What is the true statement?

Landing gear is not down locked, flaps at 3 and radio height lower than 750 ft

Landing gear is not down locked and flaps 3 or full and both radio altimeters failed

All statements are correct.

Correct! Wrong!

Nose wheel steering is controlled by:

LGCIU 2 (Landing Gear Control Interface Unit).

LGCIU 1 or 2 (Landing Gear Control Interface Unit).

BSCU (Braking Steering Control Unit).

LGCIU 1 (Landing Gear Control Interface Unit).

Correct! Wrong!

The normal brake system uses _ hydraulic pressure and the alternate brake system uses _ hydraulic pressure backed up by the hydraulic brake accumulator.

Green - Yellow.

Yellow - Blue

Green - Blue

Yellow - Green

Correct! Wrong!

If the landing gear was gravity extended using the hand crank on the center pedestal, landing gear position must be verified through:

The landing gear indications depicted on the ECAM and, if available, the center panel LDG GEAR indicator panel lights.

All statements are correct.

The landing gear viewers.

Correct! Wrong!

The steering handwheels, which are interconnected, can steer the nose wheel up to _____ in either direction.

90 degrees.

65 degrees.

75 degrees.

55 degrees.

Correct! Wrong!

For towing and pushback, the nosewheel steering angle is limited to _____.

75 degrees.

95 degrees.

90 degrees.

85 degrees.

Correct! Wrong!

Auto brake may be armed with the parking brake on.

False.

True.

Correct! Wrong!

Hand wheel and pedals are operated simultaneously:

Pedals have priority (depending on speed).

BSCU transforms these orders into nose wheel steering angle (signals are mathematically added).

Hand wheel input will not be affected by pedals.

Hand wheel has priority.

Correct! Wrong!

If the aircraft makes an acceleration stop and begins to decelerate when its speed is under _____, the automatic braking will not activate because the ground spoilers will not extend.

72 kt.

92 kt.

82kt.

78 kt.

Correct! Wrong!

WHEEL SD PAGE - The landing gear positions are indicated by 2 triangles for each gear. A red triangle indicates that:

One LGCIU (Landing Gear Control and Interface Unit) detects a landing gear in transit.

One LGCIU (Landing Gear Control and Interface Unit) detects a landing gear uplocked.

LGCIU 1 (Landing Gear Control and Interface Unit) or LGCIU 2 has failed.

Correct! Wrong!

Brake pressure is only indicated when the yellow hydraulic system controls the brake pressure. This is when the:

Parking brake is applied.

Alternate braking system is activated.

Alternate braking system is activated, or Parking brake is applied.

Correct! Wrong!

The gear doors remain open after a manual extension.

True.

False.

Correct! Wrong!

Wheel page on ECAM - if a Green arc becomes amber, and an ECAM caution appears, it means that the corresponding brake temperature exceeds:

250 deg.C.

400 deg.C.

350 deg.C.

300 deg.C.

Correct! Wrong!

Following failure of all 3 ADIRS, is antiskid available?

Only with Yellow hydraulics.

No.

Only with Green hydraulics.

Yes, the speed for the fastest wheel becomes the reference in this case.

Correct! Wrong!

Wheel page on ECAM - if you see a green arc shown over a wheel indication:

It marks the hottest brake with a temperature of more than 100 deg.C.

The L/G control system has detected a low tire profile.

It indicates an abnormal high temperature.

The A/SKID system is automatically releasing the pressure of that brake.

Correct! Wrong!

The alternate brake system uses:

The Yellow hydraulic system.

The Blue electric pump.

The Yellow hydraulic system and the hydraulic accumulator.

The hydraulic accumulator.

Correct! Wrong!

The LGCIUs (Landing Gear Control Interface Units) control the sequencing of gear and doors hydraulically.

False.

True.

Correct! Wrong!

The LGCIUs control the sequencing of gear and doors electrically.

Each main wheel has an antiskid brake.

False.

True.

Correct! Wrong!

If a tire damage is suspected, an inspection of the tires is required before taxi. If the tire is deflated but not damaged, the aircraft can be taxied at low speed with one tire is deflated on one or more gears, ie. a maximum of _____.

Three tires.

Two tires.

Four tires.

Correct! Wrong!

ALTERNATE BRAKING WITHOUT ANTI-SKID - Autobrake and antiskid are inoperative. To avoid wheel locking and limit the risk of tire burst, brake pressure is automatically limited to:

800 PSI.

2 000 PSI.

1 000 PSI.

1 600 PSI.

Correct! Wrong!

The brake and accumulator pressure gauge shows pressure from:

The Accumulator only.

The Yellow hydraulic system.

The Green hydraulic system.

Both Yellow brake system and the Brake Accumulator.

Correct! Wrong!

When both hand wheels are operated simultaneously, the signals are algebraically added.

True.

False.

Correct! Wrong!

To put the landing gear down by gravity, the flight crew must pull the gear crank out, then turn it clockwise for _____ turns.

Three.

Five.

Four.

Six.

Correct! Wrong!

A hand crank on the center pedestal allows the flight crew to extend the landing gear if the aircraft loses hydraulic systems or electrical power.

On the ramp with APU running, parking brake is set on, message on ECAM memo shows PARK BRAKE.

In White.

In Yellow.

In Green.

In White or Yellow.

Correct! Wrong!

What is indicated by the autobrake DECEL lights?

Airplane deceleration is 80% of selected rate.

Airplane deceleration is 50% of selected rate.

Airplane deceleration is 90% of selected rate.

Airplane deceleration is 25% of selected rate.

Correct! Wrong!

The maximum speed with landing gear extended (VLE) is:

300 kt / M.70

280 kt / M.67

320 kt / M.72

260 kt / M.65

Correct! Wrong!

System page WHEEL - L/G position indicators (triangles), first line shows green triangles, second line behind shows amber crosses. Is the landing gear down?

Right hand gear only is down.

Left hand gear only is down.

Yes.

No.

Correct! Wrong!

For autobrake to activate, at least two SEC’s (Spoiler Elevator Computers) must be operative.

False.

True.

Correct! Wrong!

The red arrow, near the landing gear lever illuminates when:

Landing gear is in abnormal position.

Landing gear is not up locked after retraction.

Landing gear is in transit.

Landing gear is not down locked in approach configuration.

Correct! Wrong!

On wheel page of ECAM, Autobrake is flashing green. What does it mean?

Autobrake is disengaged.

Autobrake in operation.

Anti-skid failure.

Autobrake failure.

Correct! Wrong!

Nose wheels and main wheels have fusible plugs that prevent the tires from bursting if they overheat.

False.

True.

Correct! Wrong!

Only main wheels have fusible plugs.

WHEEL SD PAGE - The landing gear positions are indicated by 2 triangles for each gear. Only one green triangle on each landing gear strut is sufficient to confirm that the landing gear is downlocked.

True.

False.

Correct! Wrong!

Auto brakes, if selected, will only be activated by:

The brake pedals being depressed.

The struts being compressed.

The wheels spinning up.

The ground spoiler extension command.

Correct! Wrong!

If a tire damage is suspected, an inspection of the tires is required before taxi. If the tire is deflated but not damaged, the aircraft can be taxied at low speed. If two tires are deflated on the same main gear (the other main gear tires not being deflated), speed should be limited to _____ and the nose wheel steering angle limited to 30 degrees.

6 kt.

5 kt.

2 kt.

3 kt.

Correct! Wrong!

If the BSCU (Braking Steering Control Unit) detects a brake system malfunction in flight with the A/SKID and N/W STRG switch in the ON position:

The flight crew must manually select alternate brakes.

The flight crew will be notified with an ECAM message after touchdown if the brake system does malfunction.

All statements are correct.

The flight crew will be notified with an ECAM message.

Correct! Wrong!

The green DECEL light on the autobrake pushbutton illuminates when the actual airplane deceleration corresponds to what percentage of the selected rate?

90%.

92%.

80%.

95%.

Correct! Wrong!

Can normal landing gear operation be restored after a gravity extension if green hydraulic pressure is available?

It may be possible if the gravity extension was not caused by a failure of the landing gear mechanism.

No, only maintenance can restore normal operation.

Restoration is always possible.

Correct! Wrong!

Landing Gear position is indicated by:

ECAM only.

One panel on center instrument panel, ECAM, visual means on the wing.

One panel on center instrument panel and ECAM.

One panel on center instrument panel, one panel on overhead panel.

Correct! Wrong!

Nose wheel steering is available when:

Gear doors are open.

The Push button on either steering hand wheel is depressed.

All gear doors are closed.

Nose gear doors are closed.

Correct! Wrong!

The Hot light on the brake fan pushbutton illuminates when brake temperature reaches:

400 deg C.

300 deg C.

250 deg C.

350 deg C.

Correct! Wrong!

The braking modes are:

Green or Yellow with anti-skid, Yellow without anti-skid, parking brake.

Green with anti-skid, Yellow without anti-skid, Parking brake.

Green with or without anti-skid, Blue without anti-skid.

Correct! Wrong!

Nose wheel steering by rudder pedals is limited to:

Maximum plus or minus 6 degrees depending on aircraft speed.

Plus or minus 90 degrees.

Plus or minus 6 degrees under all conditions.

Plus or minus 75 degrees.

Correct! Wrong!

In normal operation, the reference speed is determined by the BSCU from the horizontal acceleration of ADIRU 1, or ADIRU 2, or ADIRU 3. In case all ADIRUs fail, reference speed equals the minimum of either main landing gear wheel speeds.

False.

True.

Correct! Wrong!

The antiskid deactivates when ground speed is less than _____.

25 kt.

10 kt.

20 kt.

30 kt.

Correct! Wrong!

Braking modes - There are _____ modes of operation:

Three: Normal braking, Alternate braking with antiskid, Parking brake.

Three: Normal braking, Alternate, Alternate braking and Parking brake.

Four: Normal braking, Alternate braking with antiskid, Alternate braking without antiskid and Parking brake.

Four: Normal braking, Alternate braking, Emergency braking, and Parking brake.

Correct! Wrong!

What is required to arm the auto brakes?

Yellow hydraulic pressure above 2500 psi, at least one ADIRU in NAV mode and no failures in the braking system.

At least one ADIRU in NAV mode and no failures in the braking system.

Green hydraulic pressure available, anti-skid electrically powered, no failures in the braking system, one ADIRU available.

Green hydraulic pressure available, antiskid available, at least one ADIRU in NAV mode.

Correct! Wrong!

Max braking has been selected. Takeoff being aborted, engines in reverse, you have forgotten to arm the ground spoilers. Is autobrake activated?

Yes, provided speed is less than 72 knots.

No because spoilers will not deploy if not armed.

Yes, because spoilers will still deploy.

Yes, but only if Yellow hydraulic pressure is available.

Correct! Wrong!

After takeoff the left main landing gear shock absorber is stuck in the compressed position.

The gear can be retracted under all circumstances.

The gear can be retracted once the nose wheel steering is centered.

The gear cannot be retracted, gear lever is blocked (interlock mechanism).

The gear can be retracted provided the nose gear is centered.

Correct! Wrong!

Autobraking is initiated by:

Ground spoilers extension.

Reverse thrust selection.

Main gear oleo compression.

Nose gear oleo compression.

Correct! Wrong!

The parking brake accumulator is designed to maintain the parking pressure for at least _____.

18 hours.

6 hours.

24 hours.

12 hours.

Correct! Wrong!

Maximum speed for landing gear retraction is:

200 kt.

220 kt.

235 kt.

250 kt.

Correct! Wrong!

On the E/WD, during pushback the NW STRG DISC memo is displayed. What does it mean?

The nose wheel steering computer has finished its self test.

There is a discrepancy between the two nose wheel steering handwheel position transducers.

A failure in the nose wheel steering system has been detected.

The nose wheel steering has been disconnected by ground personnel.

Correct! Wrong!

If the accumulator on the alternate brake system is your only source pressure, which of the following will be available?

Seven applications of the brake pedals.

Three applications of the brake pedals.

Auto brakes and antiskid.

Antiskid.

Correct! Wrong!

When is pressure in the nose wheel steering system shut off?

During ground towing with one engine shut down or when aircraft speed is above 60 kt.

With towing lever in towing position or both engines are shut down or the A/SKID and N/W STRG switch is OFF.

When the aircraft is on the ground with speed above 100 kt.

Correct! Wrong!

Two Landing Gear Control and Interface Units (LGCIUs) control the extension and retraction of the gear and the operation of the doors. They also supply information about the landing gear to ECAM for display, and send signals indicating whether the aircraft is in flight or on the ground to other aircraft systems.

False.

True.

Correct! Wrong!

Which hydraulic system(s) supply pressure to the landing gear system?

Green and Blue.

Blue.

Yellow and Blue.

Green.

Correct! Wrong!

What is the maximum tire speed?

225 kt.

185 kt.

195 kt.

205 kt.

Correct! Wrong!

The antiskid system gets its reference speed from:

The ADIRS.

The BSCU’s.

The LGCIU’s.

A wheel tachometer.

Correct! Wrong!

Landing gear operation is inhibited at speeds:

Above 260 knots plus or minus 5 knots.

Above 250 knots.

Below 100 knots and above 260 knots.

Below 100 knots.

Correct! Wrong!

AUTO/BRK panel - The springloaded MAX, MED, and LO pushbutton switches arm the appropriate deceleration rate. MED mode sends progressive pressure to the brakes _____ after the ground spoilers deploy.

Between two and four seconds.

Two seconds.

Between three and four seconds.

Correct! Wrong!

LO mode sends progressive pressure to the brakes 4 seconds after the ground spoilers deploy.

The autobrake will arm if at least one ADIRU is functioning.

True.

False.

Correct! Wrong!

When the aircraft is flying faster than _____, a safety valve automatically cuts off hydraulic supply to the landing gear system.

265 kt.

255 kt.

250 kt

260 kt

Correct! Wrong!

Below 260 kt, the hydraulic supply remains cut off as long as the landing gear lever is up.

Nose wheel steering is available:

Aircraft speed below 70 kt, both engines (required to be) running, Towing lever in normal position, aircraft on ground.

Aircraft speed below 70 kt, both engines (required to be) running), Towing lever in standby position, aircraft on ground.

Aircraft speed below 70 kt, both engines (required to be) running, Towing lever in normal position, aircraft on ground or in the air.

Aircraft speed below 70 kt, one engine (required to be) running, Towing lever in normal position, aircraft on ground.

Correct! Wrong!

Alternate braking using the Yellow system. Autobrake is:

Still available without anti-skid.

Still available provided Yellow system hydraulic pressure is available.

Still available with anti-skid.

Lost.

Correct! Wrong!

What system pressure does the ACCU PRESS and BRAKES pressure indicator indicate?

Blue brake accumulator and green brake system pressure to the left and right brakes.

Yellow brake accumulator and green or yellow brake system pressure to the left and right brakes.

Yellow brake accumulator and green brake system pressure to the left and right brakes.

Yellow brake accumulator and yellow brake system pressure to the left and right brakes.

Correct! Wrong!

The antiskid system provides maximum braking efficiency by maintaining the wheels at the limit of an impending skid. The antiskid system is deactivated _____

Below 15 kt IAS.

At or below 10 kt (ground speed).

Below 20 kt (ground speed).

At or below 20 kt IAS.

Correct! Wrong!

If a tire damage is suspected, an inspection of the tires is required before taxi. If the tire is deflated but not damaged, the aircraft can be taxied at low speed with one tire is deflated on one or more gears, then the speed should be limited to _____.

7 kt and 3 kt when turning.

3 kt.

7 kt.

7 kt when turning.

Correct! Wrong!

Automatic braking is activated when the command for ground spoilers extension is detected for LO and MED mode, or the command for ground spoilers extension is detected, and the aircraft speed is _____, for MAX mode.

Above 40 kt.

Above 50 kt.

Above 55 kt.

Above 30 kt.

Correct! Wrong!

Airbus A320 – Landing Gear

Airbus A320 – Landing Gear

Landing gear indicator panel UNLK light illuminates red if:

MAX autobrake mode can be armed in flight.

During pushback, the engine 2 has been started and the NW STRG DISC memo has changed to amber. What does it mean?

You have just set the parking brake handle to ON. Is it still possible to check the main brake system using the toe brakes?

When the flight crew operates the crank handle, the cutout valve shuts off hydraulic pressure to the landing gear system and depressurizes it.

If the parking brake is activated and no yellow hydraulic or accumulator brake pressure is available, then the normal braking system can be applied via the brake pedals.

Which ADIRS close the safety valve of the green hydraulic supply when speed is above 260 kt.

The steering system centers the nose wheel automatically:

There are two triangles for each gear on the ECAM WHEEL page. What do they represent?

What does each turn of the gravity gear extension handle do?

What happens to the other brake modes when parking brakes are applied?

If the brake system automatically transitions to alternate brakes with the A/SKID and N/W STRG switch in the ON position, which of the following will be available?

The landing gear indicator panel receives the information from micro switches and proximity detectors connected to:

During the approach you get master warning and ECAM "GEAR NOT DOWN". What is the true statement?

Nose wheel steering is controlled by:

The normal brake system uses _____ hydraulic pressure and the alternate brake system uses _____ hydraulic pressure backed up by the hydraulic brake accumulator.

If the landing gear was gravity extended using the hand crank on the center pedestal, landing gear position must be verified through:

The steering handwheels, which are interconnected, can steer the nose wheel up to _____ in either direction.

For towing and pushback, the nosewheel steering angle is limited to _____.

Auto brake may be armed with the parking brake on.

Hand wheel and pedals are operated simultaneously:

If the aircraft makes an acceleration stop and begins to decelerate when its speed is under _____, the automatic braking will not activate because the ground spoilers will not extend.

WHEEL SD PAGE - The landing gear positions are indicated by 2 triangles for each gear. A red triangle indicates that:

Brake pressure is only indicated when the yellow hydraulic system controls the brake pressure. This is when the:

The gear doors remain open after a manual extension.

Wheel page on ECAM - if a Green arc becomes amber, and an ECAM caution appears, it means that the corresponding brake temperature exceeds:

Following failure of all 3 ADIRS, is antiskid available?

Wheel page on ECAM - if you see a green arc shown over a wheel indication:

The alternate brake system uses:

The LGCIUs (Landing Gear Control Interface Units) control the sequencing of gear and doors hydraulically.

Each main wheel has an antiskid brake.

If a tire damage is suspected, an inspection of the tires is required before taxi. If the tire is deflated but not damaged, the aircraft can be taxied at low speed with one tire is deflated on one or more gears, ie. a maximum of _____.

ALTERNATE BRAKING WITHOUT ANTI-SKID - Autobrake and antiskid are inoperative. To avoid wheel locking and limit the risk of tire burst, brake pressure is automatically limited to:

The brake and accumulator pressure gauge shows pressure from:

When both hand wheels are operated simultaneously, the signals are algebraically added.

To put the landing gear down by gravity, the flight crew must pull the gear crank out, then turn it clockwise for _____ turns.

On the ramp with APU running, parking brake is set on, message on ECAM memo shows PARK BRAKE.

What is indicated by the autobrake DECEL lights?

The maximum speed with landing gear extended (VLE) is:

System page WHEEL - L/G position indicators (triangles), first line shows green triangles, second line behind shows amber crosses. Is the landing gear down?

For autobrake to activate, at least two SEC’s (Spoiler Elevator Computers) must be operative.

The red arrow, near the landing gear lever illuminates when:

On wheel page of ECAM, Autobrake is flashing green. What does it mean?

Nose wheels and main wheels have fusible plugs that prevent the tires from bursting if they overheat.

WHEEL SD PAGE - The landing gear positions are indicated by 2 triangles for each gear. Only one green triangle on each landing gear strut is sufficient to confirm that the landing gear is downlocked.

Auto brakes, if selected, will only be activated by:

If the BSCU (Braking Steering Control Unit) detects a brake system malfunction in flight with the A/SKID and N/W STRG switch in the ON position:

The green DECEL light on the autobrake pushbutton illuminates when the actual airplane deceleration corresponds to what percentage of the selected rate?

Can normal landing gear operation be restored after a gravity extension if green hydraulic pressure is available?

Landing Gear position is indicated by:

Nose wheel steering is available when:

The Hot light on the brake fan pushbutton illuminates when brake temperature reaches:

The braking modes are:

Nose wheel steering by rudder pedals is limited to:

In normal operation, the reference speed is determined by the BSCU from the horizontal acceleration of ADIRU 1, or ADIRU 2, or ADIRU 3. In case all ADIRUs fail, reference speed equals the minimum of either main landing gear wheel speeds.

The antiskid deactivates when ground speed is less than _____.

Braking modes - There are _____ modes of operation:

What is required to arm the auto brakes?

Max braking has been selected. Takeoff being aborted, engines in reverse, you have forgotten to arm the ground spoilers. Is autobrake activated?

After takeoff the left main landing gear shock absorber is stuck in the compressed position.

Autobraking is initiated by:

The parking brake accumulator is designed to maintain the parking pressure for at least _____.

Maximum speed for landing gear retraction is:

On the E/WD, during pushback the NW STRG DISC memo is displayed. What does it mean?

If the accumulator on the alternate brake system is your only source pressure, which of the following will be available?

When is pressure in the nose wheel steering system shut off?

Which hydraulic system(s) supply pressure to the landing gear system?

What is the maximum tire speed?

The antiskid system gets its reference speed from:

Landing gear operation is inhibited at speeds:

AUTO/BRK panel - The springloaded MAX, MED, and LO pushbutton switches arm the appropriate deceleration rate. MED mode sends progressive pressure to the brakes _____ after the ground spoilers deploy.

The autobrake will arm if at least one ADIRU is functioning.

When the aircraft is flying faster than _____, a safety valve automatically cuts off hydraulic supply to the landing gear system.

Nose wheel steering is available:

Alternate braking using the Yellow system. Autobrake is:

What system pressure does the ACCU PRESS and BRAKES pressure indicator indicate?

The antiskid system provides maximum braking efficiency by maintaining the wheels at the limit of an impending skid. The antiskid system is deactivated _____

If a tire damage is suspected, an inspection of the tires is required before taxi. If the tire is deflated but not damaged, the aircraft can be taxied at low speed with one tire is deflated on one or more gears, then the speed should be limited to _____.

Automatic braking is activated when the command for ground spoilers extension is detected for LO and MED mode, or the command for ground spoilers extension is detected, and the aircraft speed is _____, for MAX mode.

The normal brake system uses _ hydraulic pressure and the alternate brake system uses _ hydraulic pressure backed up by the hydraulic brake accumulator.