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4. Systems > Landing Gear & Brakes > Flashcards

Landing Gear & Brakes Flashcards

1
Q

To prevent exceeding VFE, a safety valve isolates the GREEN hydraulic supply above what speed?

A

260 kts

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2
Q

What hydraulic system powers the main gear?

A

GREEN

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3
Q

What hydraulic system and computer powers the nose gear?

A

YELLOW and the Brake Steering Control Unit (BSCU)

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4
Q

What do the Landing Gear Control and Interface Units (LGCIU) do?

A

Control door and gear movement

Monitor gear and door positions through prox sensors

Gear info to ECAM

Sends gnd/flt signals to other aircraft

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5
Q

When do the Landing Gear Control and Interface Units (LGCIU) alternate control?

A

At the end of each cycle

OR

During failure

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6
Q

What are the 5 braking modes?

A

Normal

Alt with antiskid

Alt without antiskid

Accumulator only braking

Parking Brake

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7
Q

In the WHEELS pages what do the triangles represent?

A

LEFT = Landing Gear Control and Interface Units (LGCIU) 1 sensor

RIGHT = Landing Gear Control and Interface Units (LGCIU) 2 sensor

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8
Q

What is the action item when GEAR UPLOCK is displayed?

A

Do NOT raise the gear lever

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9
Q

What does a GREEN ARC on the BRAKES page represent?

A

Brake temp >100C

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10
Q

What does a AMBER ARC on the BRAKES page represent?

A

Brake temp >300C

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11
Q

What does the REL stand for?

A

Brakes Released

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12
Q

What does the N/W STEERING memo mean?

A

Failure of nosewheel steering system

Failure of both BSCUs

Low Yellow pressure

A/SKID and N/W STGR switch selected off

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13
Q

What does the ANTI SKID memo mean?

A

Both BSCU channels fail

A/SKID and N/W STGR switch selected off

Antiskid Failure

Low Yellow pressure

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14
Q

What does the NORM BRK memo mean?

A

GREEN = Auto and Alternate brakes failure

AMBER = Loss of Normal Braking from BSCU failure or low Green pressure

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15
Q

What does the ALTN BRK memo mean?

A

GREEN = Alternate braking available, normal and anti-skid failure

AMBER = Alternate braking failure

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16
Q

How are the Landing Gear Position indicators signaled?

A

LGCIU 1 ONLY

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17
Q

When and only when will MAX autobrakes be selected?

A

TO only

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18
Q

What does the A/SKID & N/W STRG switch do?

A

Provides power to both BSCUs

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19
Q

What system powers the parking brake?

A

YELLOW

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20
Q

What system powers the wheels brakes?

A

GREEN

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21
Q

When is NORMAL BRAKING available?

A

GREEN pressure available

At least one BSCU channel functioning

*Antiskid only works in Normal braking

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22
Q

When in the Green arc, how long can the parking brake provide pressure?

A

12 hours

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23
Q

How would you pressurize the YELLOW system for the parking brake?

A

Yellow Electric Pump

*get ground clearance first

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24
Q

What do Brake Pressure gauges represent?

A

Parking Brake (yellow) pressure

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25
Q

What 2 systems are essential for an aborted TO?

A

Auto Brakes and Spoilers

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26
Q

When will Auto Brakes engage during a rejected TO?

A

Spoilers activated

Thrust to IDLE

MAX auto brakes apply auto with spoiler activation

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27
Q

What is the steering limit of the rudder pedals?

A

6 degrees either direction

gradually reduced at 40 knots to 0 at 140

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28
Q

What does AUTO/BK LO do?

A

Activates 4 seconds after ground spoiler extension

1.7 m/sec deceleration

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29
Q

What does AUTO/BK MED do?

A

Activates 2 seconds after ground spoiler extension

3 m/sec deceleration

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30
Q

When will DECEL light activate?

A

80% target rate

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31
Q

How do you deactivate auto brakes?

A

Turn off AUTO/BRK pb

Apply pressure to at least one brake pedal (both for MAX)

Retract ground spoilers

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32
Q

When would you call mx for abnormal brake temp after landing?

A

>600C
<60C

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33
Q

When would Alternate Braking with AntiSkid be active?

A

Low Green Pressure

*no AutoBrakes

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34
Q

When would Alternate Braking withOUT AntiSkid be active?

A

Low Green Pressure

Loss of BSCU

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35
Q

When would Accumulator only braking be used?

A

Low GREEN and YELLOW Pressure

Accumulator provides 7 full brake applications on YELLOW system

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36
Q

When would the RED arrow illuminate next to the Gear Selector?

A

Gear not down and locked at 750 AGL

37
Q

Why would recycling the gear help a gear problem?

A

Recycling the gear switches to the other LGCIU

38
Q

What if only one Green gear indicator is present?

A

This is sufficiant to conclude that the gear is down

However, the doors will not close

39
Q

What other systems are unavailable with the loss of both LCGIUs?

A

Thrust Reversers

GPWS

40
Q

What other systems are unavailable with the loss of both BSCUs? Or turning off the A/SKID & N/W STRG switch.

A

Nosewheel Steering

Normal Braking

Antiskid

Autobrakes

41
Q
  1. (DSC-32-10) Landing gear can be extended by :
    (a) Green system or yellow in stand by.
    (b) Green system or mechanical gravity extension.
    (c) Green system for unlocking, gravity extension and green system for downlocking.
    (d) Blue system or mechanical gravity extension.
A

Tbn

42
Q
  1. (DSC-32-30) The braking modes are :
    (a) Green with anti skid, Yellow without anti skid, Parking brake.
    (b) Green or Yellow with anti skid, Yellow without anti skid, parking brake.
    (c) Green with or without anti skid, Yellow without anti skid, Parking brake.
    (d) Green with anti skid, Blue without anti skid.
A

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43
Q
  1. (DSC-32-30) The anti skid and Nose wheel switch is set to off :
    (a) Anti skid only is deactivated.
    (b) Nose wheel steering only is deactivated.
    (c) Anti skid and Nose wheel steering are deactivated.
    (d) Anti skid provides a fixed aircraft deceleration.
A

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44
Q
  1. (DSC-32-10) Landing Gear position is indicated by:
    (a) One panel on center instrument panel, One panel on overhead panel.
    (b) ECAM only.
    (c) One panel on center instrument panel & ECAM.
    (d) One panel on center instrument panel, ECAM , visual means on the wing.
A

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45
Q
  1. (DSC-32-30) When auto brake operates, it can be disarmed by :
    (a) decerating below 72 kts
    (b) Selecting flaps up.
    (c) Ground spoilers extension.
    (d) Pressing the push button or losing an arming condition, or by depressing one pedal enough when auto brake is operating in MAX, MED or LO, or by Ground spoilers retraction.
A

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46
Q
  1. (DSC-32-20) Maximum speed for landing gear retraction is :
    (a) 200 kts.
    (b) 220 kts.
    (c) 250 kts.
    (d) 280 kts.
A

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47
Q
  1. (DSC-32-20) The Nose wheel steering is powered by :
    (a) The Green hydraulic system.
    (b) An Electric actuator.
    (c) The Blue hydraulic system.
    (d) The yellow hydraulic system.
A

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48
Q
  1. (DSC-32-20) Nose wheel steering is available when :
    (a) Gear doors open.
    (b) Nose gear doors closed.
    (c) All gear doors closed
    (d) The Push button on either steering hand wheel is depressed.
A

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49
Q
  1. (DSC-32-20) Nose wheel steering is controlled by :
    (a) Lgciu 1.
    (b) BSCU.
    (c) Lgciu 2.
    (d) ADIR 1
A

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50
Q
  1. (DSC-32-20) When is pressure in the nose wheel steering system shut off :
    (a) With towing lever in towing position or both engines are shut down or the A/SKID & N/W STRG switch is OFF
    (b) During ground towing with one engine shut down or when aircraft speed is above 60 kts.
    (c) When the Nose landing gear doors are closed.
    (d) When the aircraft is on the ground.
A

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51
Q
  1. (DSC-32-20) The hand wheels in the cockpit provide a wheel steering angle of :
    (a) 85 deg.
    (b) 70 deg.
    (c) 75 deg.
    (d) 90 deg.
A

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52
Q
  1. (DSC-32-20) When both hand wheels are operated simultaneously, the signals :
    (a) From the first pilot acting on his hand wheel have priority.
    (b) Coming from the captain have priority.
    (c) Are algebraically added.
    (d) From the F/O have priority.
A

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53
Q
  1. (DSC-32-20) Nose wheel steering by rudder pedals is limited to :
    (a) +/- 6 deg. under all conditions.
    (b) Max. +/- 6 deg. depending on aircraft speed.
    (c) +/- 75 deg.
    (d) +/- 90 deg.
A

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54
Q
  1. (DSC-32-20) Hand wheel and pedals are operated simultaneously :
    (a) Hand wheel has priority.
    (b) Pedals have priority ( depending on speed ).
    (c) BSCU transforms these orders into nose wheel steering angle (Signals are mathematically added).
    (d) Hand wheel input will not be affected by pedals.
A

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55
Q
  1. (DSC-32-20) Nose wheel steering is available :
    (a) A/C speed below 70 kts, Both engs.(required to be) running, Towing lever normal position, A/C on ground.
    (b) A/C speed below 70 kts, Both engs. (required to be) running, Towing lever normal position, A/C on ground or in the air.
    (c) A/C speed below 70 kts, One eng. (required to be) running, Towing lever normal position, A/C on ground.
    (d) A/C speed below 170 kts, Both engines (required to be) running, A/C on ground.
A

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56
Q
  1. (DSC-32-10) Hydraulic pressure to the landing gear is supplied up to :
    (a) 280 kts.
    (b) Any speed.
    (c) 260 kts.
    (d) 300 kts.
A

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57
Q
  1. (DSC-32-10) After T/O the left main landing gear shock absorber is stuck in the compressed position (a/c on ground posn.) :
    (a) The gear can be retracted under all circumstances (safety).
    (b) The gear can be retracted provided the nose gear is centered.
    (c) The gear can not be retracted, gear lever is blocked (interlock mechanism).
    (d) The gear can be retracted once the nose wheel steering is centered.
A

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58
Q
  1. (DSC-32-10) Is it possible (system wise) to lower the gear by gravity above 260 kts
    (a) Yes.
    (b) No.
    (c) Yes, but only if green hydraulics are available.
    (d) Yes, but only if yellow hydraulics are available.
A

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59
Q
  1. (DSC-32-10) System page ‘Wheel’ ; L/G position indicators (triangles), First line shows green triangles, second line behind shows amber crosses, Is the landing gear down ?
    (a) Yes.
    (b) No.
    (c) Right hand gear only is down.
    (d) Left hand gear only is down.
A

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60
Q

20 (DSC-32-10) During an approach you get master warning and ECAM ; ‘Gear not down’, The reason is :

(a) L/g not down locked and flaps 3 or full and one rad alt failed
(b) L/g not down locked, flaps at 3 and radio height lower than 1000 ft.
(c) L/g not down locked and flaps 3 or full and both rad alts failed, or L/g not down locked, flaps at 3 and radio height lower than 750 ft.
(d) Both rad. alts. have failed.

A

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61
Q
  1. (DSC-32-30) The brakes are actuated by two independent systems, pressurised by the:
    (a) Blue and Green hydraulic systems.
    (b) Yellow and Green hydraulic systems.
    (c) Blue and Yellow hydraulic systems.
    (d) PTU and blue hydraulic systems.
A

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62
Q
  1. (DSC-32-30) The alternate brake system uses :
    (a) The PTU.
    (b) The Green hydraulic system.
    (c) The Yellow hydraulic system and the hydraulic accumulator.
    (d) The Blue electric pump.
A

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63
Q
  1. (DSC-32-30) Brake pressure from the hydraulic accumulator only is available ;
    (a) In Normal (with anti-skid).
    (b) In Alternate (with anti-skid).
    (c) In Alternate (without anti-skid).
    (d) Only when green hydraulic pressure is available.
A

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64
Q
  1. (DSC-32-30) The anti-skid system gets its reference speed from ;
    (a) The BSCU from the horizontal acceleration furnished by ADIRU 1, 2 or 3.
    (b) A wheel tachometer.
    (c) The LGCIUs.
    (d) The ECAM
A

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65
Q
  1. (DSC-32-30) The principle of the anti skid is ;
    (a) Comparing the speed difference between the four wheels.
    (b) Comparing wheel speed with aircraft reference speed.
    (c) Comparing wheel speeds between left and right landing gear.
    (d) Comparing left and right wheel speeds on the same main landing gear.
A

TBN

66
Q
  1. (DSC-32-30) Following failure of all 3 ADIRS is anti-skid still available;
    (a) Yes.
    (b) No.
    (c) Only with yellow hydraulics.
    (d) Only with green hydraulics.
A

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67
Q
  1. (DSC-32-30) Green hydraulic system available, you find the A/Skid and N/W steering switch in the OFF position;
    (a) Braking is normal, nosewheel steering is lost.
    (b) Braking is alternate, nosewheel steering is normal.
    (c) Braking is alternate, nosewheel steering is lost.
    (d) Braking is normal, nosewheel steering is normal.
A

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68
Q
  1. (DSC-32-30) Alternate braking using the yellow system, Autobrake is;
    (a) Still available with anti-skid.
    (b) Lost.
    (c) Still available without anti-skid.
    (d) Still available provided yellow system hydraulic pressure is available.
A

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69
Q
  1. (DSC-32-30) Setting the parking brake to on;
    (a) Deactivates all braking modes, except the anti-skid.
    (b) Autobrake can be armed.
    (c) Deactivates all braking modes.
    (d) Deactivates all braking modes, but only on yellow hydraulics.
A

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70
Q
  1. (DSC-32-30) Setting the parking brake to on;
    (a) Deactivates the autobrake
    (b) Requires yellow hydraulic system or accumulator
    (c) Requires application of toe brakes.
    (d) Is not possible when the aircraft is moving
A

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71
Q
  1. (DSC-32-30) Autobraking is initiated by;
    (a) Reverse thrust selection.
    (b) Ground spoilers extension.
    (c) Main gear oleo compression.
    (d) Nose gear oleo compression.
A

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72
Q
  1. (DSC-32-30) With AUTO BRK MED selected for landing;
    (a) Pressure is applied to the brakes 4 seconds after the ground spoilers deploy.
    (b) Pressure is applied to the brakes 2 seconds after the ground spoilers deploy
    (c) The green DECEL light comes on when deceleration is 20% of the selected rate
    (d) The speed must be below 72 kts for autobrake to activate.
A

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73
Q
  1. (DSC-32-30) The Brake & Accumulator pressure gauge shows pressure ;
    (a) From the Yellow hydraulic system.
    (b) From the Accumulator only.
    (c) From both Yellow brake system and the Brake Accumulator.
    (d) From the green hydraulic system.
A

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74
Q
  1. (DSC-32-30) Max braking has been selected; Take off being aborted, engines in reverse, you have forgotten to arm the ground spoilers, is autobrake activated ;
    (a) Yes, because spoilers will still deploy.
    (b) No, because spoilers will not deploy if not armed.
    (c) Yes, provided speed is less than 72 kts.
    (d) Yes, but only if yellow hydraulic pressure is available.
A

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75
Q
  1. (DSC-32-30) The Hot light on the brake fan pushbutton illuminates when brake temperature reaches;
    (a) 250 deg.c.
    (b) 300 deg.c.
    (c) 315 deg.c.
    (d) 725 deg.c.
A

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76
Q
  1. (DSC-32-30) On Wheel page of ECAM , Autobrake is flashing green ;
    (a) Autobrake is disengaged.
    (b) Autobrake failure.
    (c) Anti-skid failure.
    (d) Autobrake in operation.
A

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77
Q
  1. (DSC-32-30) On wheel page of ECAM, a green arc appears on one wheel indicator meaning the brake temperature is above ;
    (a) 300 deg.c.
    (b) 100 deg.c.
    (c) 50 deg.c.
    (d) 725 deg.c.
A

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78
Q
  1. (DSC-32-30) After lift off, is brakes hot warning on ECAM still available;
    (a) Yes, gear down or up.
    (b) Yes, gear down only.
    (c) Not available after lift off.
    (d) Only available in flight phases 4 & 8.
A

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79
Q
  1. (DSC-32-30) On the ramp with Apu running, park brake is set on, message on ECAM memo shows Park Brake ;
    (a) In Green.
    (b) Not at all.
    (c) message is displayed on pedestal
    (d) In yellow (because of accumulator pressure).
A

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80
Q
  1. (DSC-32-10) After a landing gear gravity extension, is it possible to restore normal landing gear operation if green hydraulic pressure is available ;
    (a) Yes.
    (b) No.
    (c) Yes, but only after landing.
    (d) No, it requires maintenance action.
A

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81
Q
  1. (DSC-32-10) The landing gear indicator panel receives the information from micro switches and proximity detectors connected to ;
    (a) LGCIU 1.
    (b) LGCIU 2.
    (c) Both.
    (d) BSCU.
A

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82
Q
  1. (DSC-32-10) The red arrow, near the landing gear lever illuminates when ;
    (a) Landing gear is not down locked in approach config.
    (b) Landing gear is not up locked after retraction.
    (c) Landing gear is in abnormal position.
    (d) Landing gear is in transit.
A

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83
Q
  1. (DSC-32-10) Landing gear indicator panel UNLK light illuminates red if ;
    (a) Gear is not locked in selected position.
    (b) Gear is extended by gravity and doors are not closed.
    (c) Gear is extended normally and doors are not closed.
    (d) Gear is not selected down by 1,000 ft. R.A..
A

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84
Q
  1. (LIM-13) The Max speed with landing gear extended (VLE) is ;
    (a) 300 kts. / M.70
    (b) 280 kts. / M.67
    (c) 260 kts. / M.60
    (d) 320 kts. / M.72
A

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85
Q
  1. (LIM-13) The Max speed at which the landing gear may be extended is ;
    (a) 260 kts.
    (b) 250 kts.
    (c) 240 kts.
    (d) 185 kts.
A

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86
Q
  1. (DSC-32-10) Which ADIRS close the safety valve of the green hydraulic supply when speed is > 260 kts.
    (a) ADIRS 1 & 2.
    (b) ADIRS 1 & 3.
    (c) ADIRS 2 & 3.
    (d) ADIRS 3 & 4.
A

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87
Q
  1. (LIM-13) What is the Max tyre speed ;
    (a) 205 kts.
    (b) 195 kts.
    (c) 185 kts.
    (d) 225 kts.
A

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88
Q
  1. (DSC-32-10) Are there any visual gear downlock indicators ;
    (a) Yes, under a panel in the flight deck floor.
    (b) No.
    (c) Yes, on the wing top surface.
    (d) Yes, under a panel in the aisle floor.
A

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89
Q
  1. (DSC-32-10) How many turns are necessary to extend the landing gear by gravity using the handcrank;
    (a) Ten turns clockwise.
    (b) Five turns clockwise.
    (c) Three turns clockwise.
    (d) Six turns anti-clockwise.
A

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