Landing Gear

Question 1

Pressurizing system 4 before pressurizing the other systems precludes what?

Answer 1

Transfer of hydraulic fluid from system 1 or 2 to system 4

Question 2

The normal brake hydraulic system is powered by which hydraulic system?

Answer 2

4

Question 3

After alternate gear extension, the gear doors are in what position?

Answer 3

Open

Question 4

The autobrake system provides braking until when?

Answer 4

A complete stop
or
the system disarmed

Question 5

What would cause the autobrake system to disarm immediately?

Answer 5

Advancing thrust levers or fault

Question 6

What is the source of the ground speed information provided to the antiskid controller?

Answer 6

The IRUs

Question 7

In flight, the gear lever lock is released when what two conditions are met?

Answer 7

Main gear is tilted and body gear is centered

Question 8

Body gear steering operates when the nosewheel steering angle exceeds __ degrees.

Answer 8

20

Question 9

The body gear is hydraulically centered and body gear steering is deactivated as the aircraft accelerates through what speed?

Answer 9

20 knots

Question 10

For which hydraulic brake systems are autobrakes available?

Answer 10

Normal

Question 11

If hydraulic system 4 pressure is low, which hydraulic system would supply pressure to the alternate brake hydraulic system?

Answer 11

1

Question 12

Rather than to individual wheels, the alternate brake system provides antiskid protection to the wheels how?

Answer 12

Lateral wheel pairs

Question 13

During takeoff, with RTO selected, when would RTO engage?

Answer 13

Aircraft on ground, groundspeed > 85 knots, and all thrust levers closed.

Question 14

Loss of which hydraulic systems causes the brake source light to illuminate?

Answer 14

4, 1, 2

Question 15

Which brake hydraulic system provides main gear wheel with individual antiskid protection?

Answer 15

Normal

Question 16

At what speed is the RTO autobrake function inoperable if an RTO is initiated?

Answer 16

below 85 knots

Question 17

The autobrake system is only available through which of the following?

Answer 17

Normal brake system

Question 18

Which autobrake setting provides maximum braking?

Answer 18

RTO

Question 19

When are autobrakes disarmed?

Answer 19

DISARM or OFF are selected, manual brakes are applied, or any Thrust Lever is advanced

Question 20

For landing, the 5 levels of autobrake settings modulate autobrake pressure based on what?

Answer 20

Deceleration rate

Question 21

Body gear steering is reactivated when decelerating past what speed?

Answer 21

15 knots

Question 22

Rudder pedals will steer the nosewheel up to what angle?

Answer 22

7 degrees

Question 23

The tiller will steer the nosewheel up to what angle?

Answer 23

70 degrees

Question 24

Which hydraulic brake systems have antiskid protection?

Answer 24

Normal and alternate

Question 25

Is it possible to stop the aircraft with the brake accumulator?

Answer 25

No

Question 26

How are alternate brakes powered?

Answer 26

Hyd system 1 or system 2 if 1 is unpressurized

Question 27

What does the BRAKE SOURCE light indicate?

Answer 27

Loss of Hydraulic system 4, 2, and 1

Question 28

Which hydraulic system pressurizes the parking brake accumulator?

Answer 28

4

Question 29

Can the parking brake be set with only the alternate brake hydraulic system pressurized?

Answer 29

Yes

Question 30

How can parking brakes be set?

Answer 30

Hyd system
2 alternate brakes and normal brakes

Question 31

During gear retraction, how is main gear wheel rotation stopped?

Answer 31

Brakes are applied on the main gear wheels automatically

Question 32

During alternate gear extension, how are the gear uplocks and gear door latches released?

Answer 32

Electically

Question 33

After landing when does autobrake application begin?

Answer 33

Main wheels have spun up and all Thrust Levers are closed

Question 34

Autobrakes are available with what?

Answer 34

Normal brakes

Question 35

How are autobrakes powered?

Answer 35

Hydraulic system 4

Question 36

Alternate Landing Gear Extension speed limits

Answer 36

Do not exceed the gear EXTEND limit speed
(270K/.82)

*reduction of speed to below 0.60 Mach may be needed for the wing gear to lock down.

Question 37

What are the 3 conditions for the RTO to command Maximum braking pressure?

Answer 37

• Airplane on ground;
• Ground Speed > 85kt
• All Thrust Levers Closed.

Question 38

What are the 3 conditions for the AUTO BRAKE to begin brakes application?

Answer 38

• All Thrust Levers closed;
• Ground Mode sensd (tilted)
• Wheels have spun up.

Question 39

Auto brakes disarms when?

Answer 39

• Manual Brakes applied;
• Any Thrust Lever advanced;
• Speed Brake move forward;
• Disarm or Off selected;
• Fault on the system.