M11.5 Flashcards

1
Q

Basic T

A
  • air speed indicator
  • attitude director indicator
  • horizontal situational indicator
  • altimeter
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2
Q

What type of altitude does the altimeter give

A

Barometric altitude

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3
Q

What gyro is used for attitude director indicator

A

Vertical axis gyro

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4
Q

What gyro does the horizontal situation indicator use

A

Horizontal gyro

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5
Q

A basic EFIS system has how many screens

A

6

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6
Q

Explain basic EFIS from order

A
  • PFD
  • ND
  • ECAM/EICAS
  • ND
  • PFD
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7
Q

Advantages of EFIS system

A
  • redundancy
  • interchangeable
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8
Q

Disadvantage of EFIS SYSTEM

A

Higher electrical consumption

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9
Q

Radio altimeter is functional within what altitude

A
  • 0-2500 ft (<2500ft)
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10
Q

Explain transducers

A
  • analogue signal converts to analogue electrical signal
  • (AC TO DC)
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11
Q

What instruments are functional via static pressure system

A
  • altimeter
  • ASI
  • VSI
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12
Q

Where is the static pressure system located

A
  • area of smooth airflow (away from relative flow)
  • forward fuselage
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13
Q

Explain static source error

A
  • difference between real static and measured
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14
Q

Explain baffles in pitot tube

A
  • prevents FOD and water
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15
Q

If the aircraft is parked what must be done to the pitot tube

A
  • covered
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16
Q

Explain alternate static source selector valve

A

Allows pilot to use co-pilots static pressure system

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17
Q

When would you use perform a pitot static leak test

A
  • system disrupted/changed
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18
Q

Explain QNH

A

Height above sea level

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19
Q

Explain QFE

A
  • height of airfield level
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20
Q

Explain QNE

A

Height indicated when scale is 1013.25hpa

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21
Q

How many ADIRUUs are on a aircraft

A

3

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22
Q

Explain standby ADIRUU

A
  • 1 standby
  • ready functioning (automatic switching)
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23
Q

Explain standby horizon

A
  • has own gyro (vertical) (pitch and roll)
  • DC battery powered
  • 20mins run down
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24
Q

Explain rate gyro

A
  • rate of turn (yaw)
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25
Q

Gyro stability depends on

A
  • mass
  • rotational speed
  • distance between axis + centre of mass
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26
Q

How fast do gyros spin

A
  • 22000RPM
  • (20000-24000)
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27
Q

Freedom of earth type gyro

A

2 degrees

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28
Q

Explain rate gyros

A
  • 1 degree freedom
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29
Q

If rate gyros are held by a spring what is the freedom

A

1.5 freedom

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30
Q

Explain torque motors/levelling switches

A
  • keeping aircraft level
  • due to 15 degree change every hour
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31
Q

Explain laser gyros

A
  • 3 laser gyros x,y,z
  • beam of light split in 2 opposite directions
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32
Q

How often is the FMS updated

A

28 days

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33
Q

Explain deviation

A
  • difference between compass and magnetic
34
Q

Explain variation

A
  • difference between magnetic and true
35
Q

How does the turn indicator work

A
  • bubble stays middle for coordinated turn (steady turn)
36
Q

How do instruments dampen compass movements

A

Fluid

37
Q

Explain magnetic compass lighting

A
  • light cancels out magnetic field, so no interference
38
Q

Where are flux valves located

A
  • wing tip/vertical stab
  • further from any electrical appliances
39
Q

When does the STALL warning occur

A
  • before
40
Q

What happens when AOA exceeds alpha max

A
  • Stall
41
Q

How can the alpha max be changed

A

Depending on flaps, slats, LG etc

42
Q

What type of movement do stick shakers produce

A

Mechanical vibration

43
Q

Do the EFIS system get dimmer or brighter in the night

A

Dimmer

44
Q

What gyro is used for the NAV screen

A

Directional gyro (horizontal)

45
Q

What gyro does the PFD use

A

Vertical gyro

46
Q

What movements do vertical gyros produce

A

Pitch and roll

47
Q

Explain rose

A

360 degrees

48
Q

Explain arc

A

180 degrees

49
Q

Explain flight director

A
  • tells pilot where to fly (manually)
  • e.g. left / right
50
Q

Explain qualitive

A
  • colour
51
Q

Explain quantitative

A
  • number
52
Q

When is static air temp = total air temp

A

On ground

53
Q

Is pitch trim ON the entire flight

A
  • yes
54
Q

Explain yaw dumper

A
  • counteract dutch roll
  • rudder moves opposite direction
  • on during entire flight
55
Q

Explain flight envelope

A
  • autopilot fly within specific parameters
  • puts small manoeuvre, not harsh
56
Q

Explain inner loop (closed)?

A
  • change from selected flight path and returning to original altitude
57
Q

Explain outer loop

A
  • Controls inner loop (gives commands e.g. altitude, heading etc)
58
Q

How many autopilot systems are required as a minimum

A

2

59
Q

Explain fail operational

A
  • operational despite failure (auto land still possible)
60
Q

Explain fail passive

A
  • withstand failure without endangering safety (manual)
61
Q

Explain VHF

A
  • 30-300MHz
  • 108-118 -> NAV
  • 118-137 -> COMMS
  • BW used to be 25khz but now 8.33khz
62
Q

What is VHF 3 used for

A

ACARS

63
Q

Explain HF

A
  • 3-30MHz
  • long range (worldwide)
64
Q

What is used to overcome HF problems

A

SATCOM

65
Q

What would be used for sky wave
- HF
- VHF
- SATCOM

A

HF

66
Q

What would be used for space wave
- HF
- VHF
- SATCOM

A

SATCOM

67
Q

What would be used for surface/ground wave
- HF
- VHF
- SATCOM

A
  • VHF
68
Q

Function of ACARS

A

Reduce pilot work load

69
Q

Explain a antenna tuning unit

A
  • electrically changes the aerial length
70
Q

What does SELCAL simply do

A
  • Filters unwanted radio transmissions
  • used for both VHF and HF
71
Q

Explain steering beam

A
  • Antenna changes direction to lock onto SATCOM
  • if not it goes to the next available SATCOM
72
Q

If ACARS does not go through VHF, what can be alternatively used

A

SATCOM

73
Q

Is FDR and CVR connected together

A

Yes

74
Q

How many units of FDR and CVR is available on an aircraft

A

2

75
Q

How does the FDR know when to start and end recording of flight

A
  • engine oil pressure switch
  • airspeed indicator
76
Q

How many hours is stored on the FDR and CVR

A

25

77
Q

Where is the FDR + CVR located

A

Rear aft bulkhead

78
Q

How long does the underwater locator beacon transmit for

A

Continuous for at least 90 days

79
Q

What frequency does the pinger transmit at

A

37.5 KHz

80
Q

The underwater locator beacon and FdR can withstand water depths of

A

> 3000 metres