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CAL B747 Systems > Landing Gear > Flashcards

Landing Gear Flashcards

1
Q

Rudder pedals full deflection will turn the nose wheel up to___degrees.

A

7 degrees in either direction (FCOM 14.10.3)

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2
Q

The brake accumulator is normally powered by hydraulic system _____. True of False

A

True- The brake accumulator is pressurized by hydraulic system 4 (FCOM 14.20.6)

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3
Q

RTO will become active above

A

Groundspeed is above 85 knots, (FCOM 14.20.5)

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4
Q

Gear Position Indicator show the color___and then blanks when the gear is up and locked.

A

White - all landing gear up and locked (blanks after 10 seconds) (FCOM 14.10.6)

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5
Q

The brake temperature white range is____.

A

0 to 4 Normal range(FCOM 14.10.8)

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6
Q

The brake temperature amber to high range is___ .

A

5 or higher (FCOM 14.10.8)

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7
Q

Normal hydraulic brake system is powered from system

A

Hydraulic system 4 (FCOM 14.20.3)

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8
Q

Alternate brake system is powered by

A

Hydraulic system No.1 and System no.2 as a backup (FCOM 14.20.3)

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9
Q

Upon gear retraction the main gear is held up and locked with trapped hydraulic pressure when the gear handle is selected to the off position. True or False.

A

False- Positioning the Landing Gear lever to OFF depressurizes the landing gear system. (FCOM 14.20.2)

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10
Q

Nose wheel and main body gear steering is powered by hydraulic system _____

A

Hyd Sys 1. (FCOM 14.20.3)

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11
Q

During normal operation….choose the correct statement:

The wing gear is supplied by sys 1 nose and body sys 4

OR

The wing gear is supplied by sys 4 nose and body sys 1.

A

The wing gear is supplied by sys 4 nose and body sys 1

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12
Q

How can you open the hydrualically operated gear doors?

A

With the Ground door release handle

Bypasses Hydraulics

Releases door uplocks

Door opens free fall (from CBT)

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13
Q

Which HYD sys are necessary for pushback?

A

1 & 4

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14
Q

the automatic gear lever lock prevents landing gear retruction after liftoff of

A

gear needs to be centered and tilt

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15
Q

After gear retruction with the gear lever in off the tilt position is…

A

The tilt position maintained Hydrualiically (center) and mechanically (wing) check…

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16
Q

The alternate gear extention….

A

HYD demand pumps instead of EDP

electric actuators instead of hyd

electrically realeses door uplocks

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17
Q

After alternate gear extension, what sys won’t be available?

Autobreak, Antiskid, Parking Break

A

Autobreak inop

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18
Q

Is tilt garunteed after emergency gear extension?

A

No

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19
Q

After an emergency gear extension will the gear doors remain open?

and will I get EICAS msg about it

A

Yes, no

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20
Q

In what cases will Expanded gear position be displayed

A

For Gear disagree and for Inop gear position indication system

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21
Q

What does the GEAR disagree EICAS msg mean

A

A disagreement between the handle position and the actual gear position

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22
Q

Select correct statement:

  1. Nose wheel steering is powered by by hyd sys 1
  2. Tiller inputs move nose wheel and pedals
  3. Rudder pedal deflection don’t move the tiller
  4. If the nose wheel steering is lost the body gear steering is still available
A

1.Nose wheel steering is powered by by hyd sys 1

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23
Q

With full rudder deflection the body gear steering will move yes or no?

A

NO (Rudder max is 7, body needs 20 deg)

24
Q

When is Body gear steering is activated?

A

Nose wheel angle more than 20° speed Below 15kts. Deactivated and centered above 20 kts

25
Q

When will BODY GEAR STRG EICAS msg display?

A

When any body gear not centered when it should

26
Q

How will the breaking system remain pressuraized if you lose HYD sys 4?

A

Automatically

27
Q

If breaking accumulator displayes 800 psi will you have normal breaking?

A

No

28
Q

If Break source light is illuminated - what does it mean?

A

All breaking source is lost

29
Q

Parking break can only be set with HYD sys 4 pressurized. True or False?

A

FALSE

30
Q

With alternate break system pressurized, the parking break works on pairs of wheels. True or false?

A

False

31
Q

Can the body gear steer move with full rudder deflection?

A

NO

Rudder max is 7, body needs 20 deg

32
Q

If the normal break accumulator pressure indication shows 0’ (Zero) - Select the correct statement:

  1. the parking break function is lost.
  2. The parking break can be set with either the normal or alternate breaking system pressurized
A

The parking break can be set with either the normal or alternate breaking system pressurized

33
Q

When will the AUTOBREAK disengage after landing?

A

Manual breaking, thrust advanced, disarming the autobreak system

34
Q

The RTO mode is activated by:

A

Airplane on the ground

Groundspeed above 85 kts and

All thrust levers are closed (idle)

(FCOM 14.20.5)

35
Q

Reverse thurst after landing influences the break pressure provided by the autobreak system. True or false

A

True

36
Q

The Anti Skid system with normal or alternate breaking always protects each main wheel individually. True or False

A

FALSE

37
Q

If the Anti Skid system is lost, what other system will you lose?

A

Autobreak

38
Q

The ANTI SKID msg indicates the loss of

A

Lost the Anti skid system for one wheel or more

39
Q

The parking break accumulator stores enough pressure to set the parking break but is not designed to stop the airplane. True or false.

A

True

40
Q

What causes the gear to extend when the alternate gear extension switches are used?

A

Gravity, freefall and spring locks

41
Q

When is the EICAS msg BREAK TEMP displayed?

A

5 or higher (FCOM 14.10.8)

42
Q

After Takeoff how is the autobreak selector positioned to OFF?

A

Automatically

43
Q

If the antiskid system is lost…

A

ANTISKID displays on the gear synoptic adjacent to the affected wheels, Longer landing distances, Braking and autobrakes effectiveness reduced and, Tire blowout, Locked tire. (FCOM 14.20.4)

44
Q

The ANTISKID message indicates the loss of

A

Fault detected in antiskid system.(Protection) (FCOM 14.30.2)

45
Q

THE ACCUMULATOR STORES ENOUGH PRESSURE TO SET THE PARKING BRAKE BUT IS NOT DESIGNED TO STOP THE AIRPLANE. True of false

A

True.

The brake accumulator is not designed to stop the airplane. (FCOM 14.20.6)

46
Q

What causes the gear to extend when the alternate gear extension switches are use?

A

Gravity / freefall (FCOM 14.20.3)

47
Q

When is the eicas message BRAKE TEMP displayed?

A

One of the Brakes equal or greater than 5 units (FCOM 14.30.2)

48
Q

After takeoff, how is the autobrakes selector positioned to off?

A

Automatically

When the autobrake system disarms during takeoff, the Autobrakes selector remains in RTO position, but moves to OFF after takeoff. (FCOM 14.20.5 system logic )

49
Q

When does the eicas message ANTISKID OFF display?

A

Antiskid power off on all wheels, or parking brake lever released and parking brake valve not fully open, or brake system control unit power loss occurs. ()

50
Q

When is the EICAS msg CONFIG PARKING BRK displayed?

A

Parking brake set when airplane on the ground, airspeed less than V1, three or more Fuel Control switches in RUN, and engine 2 OR 3 thrust in takeoff range (FCOM 15.30.1)

51
Q

What happens when tiller and rudder pedals are operated simultaneously on the ground?

A

Tiller inputs override rudder pedal inputs. (FCOM 14.20.3)

52
Q

What holds the main landing gear in the retracted position with the gear off?

A

uplocks (FCOM 14.20.2)

53
Q

How long is the gear up indication displayed on eicas after all gears are up and locked?

A

10 seconds (FCOM 14.20.2)

54
Q

When the autobrake system is armed during landing, when are the brakes applied after touchdown?

A

all thrust levers are closed, ground mode is sensed, and the wheels have spun up (FCOM 14.20.5)

55
Q

To what speed will the autobrake system provide automatic braking?

A

to a complete stop. (FCOM 14.20.5)

56
Q

What disarms the autobrakes after landing?

A

DISARM or OFF position selected

pedal braking

any Thrust lever advanced after landing

Speedbrake lever moved to DN detent after speedbreaks deployed on the ground

(FCOM 14.20.5)……autobrake fault, normal antiskid system fault, loss of normal brake hydraulic pressure

CAL B747 Systems (18 decks)

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