Landing Gear Flashcards

1
Q

Which landing gear systems are lost with a green hydraulic failure?

A

Nose wheel steering and auto brakes

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2
Q

The alternate brake system is activated

A

Automatically if green hydraulic pressure is insufficient.

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3
Q

What brake system is available if the A/SKID & N/W STRG switch is turned OFF?

A

Alternate brakes without antiskid or nose wheel steering

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4
Q

The ______ supplies at least _____ brake applications if both the green and yellow hydraulic systems fail?

A

Yellow brake accumulator, 7

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5
Q

The alternate brake system is powered by the

A

Yellow hydraulic system

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6
Q

Which hydraulic system provides brake pressure indications on the BRAKES and ACCU PRESS indicator?

A

Yellow

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7
Q

What pilot action is required on landing with a loss of normal braking and a failure of the antiskid system?

A

Monitor the brake pressure using the BRAKES and ACCU PRESS indicator

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8
Q

The antiskid system is deactivated when groundspeed is below_______ knots

A

20

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9
Q

Which system is not active if a takeoff is rejected below 72 knots?

A

Autobrakes

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10
Q

What systems do the BSCUs control?

A

Nose wheel steering, antiskid, auto brakes, normal brakes

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11
Q

What does the green NW STRG DISC ECAM memo indicate?

A

A lever on the towing electrical box is in the towing position and the nose wheel steering system is deactivated.

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12
Q

If the PEDALS DISC button is pushed and held, what happens?

A

Rudder pedal control of the nose wheel steering is disconnected

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13
Q

What does an amber NW STRG DISC ECAM memo indicate?

A

The nose wheel steering system is deactivated with an engine running

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14
Q

What happens to the nose wheel steering system when the gear is lowered using the gravity extension handle?

A

It is deactivated

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15
Q

Automatic braking is initiated by the

A

Ground spoiler extension command

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16
Q

The green DECEL light on the AUTO/BRK panel illuminates when

A

Airplane deceleration equals 80% of selected rate/

17
Q

the auto brake system can be disarmed by

A

applying sufficient brake pedal pressure to one pedal

18
Q

The Captain must verify that the parking brake is set with adequate pressure by

A

Ensuring that normal pressure is indicated on the BRAKES and ACC PRESS indicator.

19
Q

Maximum landing gear extension speed (UAL) is _______ Knots

A

240

20
Q

Maximum landing gear retraction speed is ______ knots

A

220

21
Q

Why are there two triangles for each gear on the ECAM WHEEL page?

A

Each triangle represents the gear position detected by one of the two LGCIUs

22
Q

The landing gear hydraulic safety valve is controlled by

A

The gear lever and ADIRUs 1 and/or 3

23
Q

The landing gear extension and retraction is controlled electrically by

A

LGCIU 1 or 2

24
Q

The gear lever is locked in the DOWN position by an interlock system to prevent unsafe retraction of the landing gear when

A

Either gear shock absorber is compressed with the airplane on the ground or the nose wheel is not centered

25
Q

With the gear NOT down and locked, which of the following causes the red landing gear down arrow to illuminate?

A

RA

26
Q

Which hydraulic system provides power for gear extension and retraction

A

Green System

27
Q

Which hydraulic system provides power for nose wheel steering

A

Green System

28
Q

Which hydraulic system provides power for normal brakes.

A

Green System

29
Q

Which Hydraulic system provides power for Alternate brakes

A

Yellow System

30
Q

What does BSCU stand for

A

Brake Steering Control Unit. (dual channel)

31
Q

What system is the brake accumulator on?

A

Yellow System

32
Q

The antiskid system is automatically deactivated when

A

Ground Speed is below 20 knots

A/SKID & NW STRG switch is selected off

33
Q

The auto brake system operates through the _______ brake system to maintain a selected _________ rate during landing to reduce stopping distance

A

Normal

Deceleration

34
Q

Auto brakes can be selected and armed when:

A

Green Hydraulic Pressure is available
Antiskid is powered
No failures exist in the braking system
At least one ADIRU is available

35
Q

Auto brakes are disarmed:

A

AUTO/BRK switch is deselected
When one or more arming conditions are lost
When ground spoilers are retracted
10 seconds after raising landing gear lever
When applying sufficient brake pedal deflection.

36
Q

If both Green and Yellow systems fail, alternate braking is supplied by the

A

Brake Accumulator

37
Q

How many brake applications will the brake accumulator provide

A

Seven