M11.5 Flashcards
(80 cards)
1
Q
Basic T
A
- air speed indicator
- attitude director indicator
- horizontal situational indicator
- altimeter
2
Q
What type of altitude does the altimeter give
A
Barometric altitude
3
Q
What gyro is used for attitude director indicator
A
Vertical axis gyro
4
Q
What gyro does the horizontal situation indicator use
A
Horizontal gyro
5
Q
A basic EFIS system has how many screens
A
6
6
Q
Explain basic EFIS from order
A
- PFD
- ND
- ECAM/EICAS
- ND
- PFD
7
Q
Advantages of EFIS system
A
- redundancy
- interchangeable
8
Q
Disadvantage of EFIS SYSTEM
A
Higher electrical consumption
9
Q
Radio altimeter is functional within what altitude
A
- 0-2500 ft (<2500ft)
10
Q
Explain transducers
A
- analogue signal converts to analogue electrical signal
- (AC TO DC)
11
Q
What instruments are functional via static pressure system
A
- altimeter
- ASI
- VSI
12
Q
Where is the static pressure system located
A
- area of smooth airflow (away from relative flow)
- forward fuselage
13
Q
Explain static source error
A
- difference between real static and measured
14
Q
Explain baffles in pitot tube
A
- prevents FOD and water
15
Q
If the aircraft is parked what must be done to the pitot tube
A
- covered
16
Q
Explain alternate static source selector valve
A
Allows pilot to use co-pilots static pressure system
17
Q
When would you use perform a pitot static leak test
A
- system disrupted/changed
18
Q
Explain QNH
A
Height above sea level
19
Q
Explain QFE
A
- height of airfield level
20
Q
Explain QNE
A
Height indicated when scale is 1013.25hpa
21
Q
How many ADIRUUs are on a aircraft
A
3
22
Q
Explain standby ADIRUU
A
- 1 standby
- ready functioning (automatic switching)
23
Q
Explain standby horizon
A
- has own gyro (vertical) (pitch and roll)
- DC battery powered
- 20mins run down
24
Q
Explain rate gyro
A
- rate of turn (yaw)
25
Gyro stability depends on
- mass
- rotational speed
- distance between axis + centre of mass
26
How fast do gyros spin
- 22000RPM
- (20000-24000)
27
Freedom of earth type gyro
2 degrees
28
Explain rate gyros
- 1 degree freedom
29
If rate gyros are held by a spring what is the freedom
1.5 freedom
30
Explain torque motors/levelling switches
- keeping aircraft level
- due to 15 degree change every hour
31
Explain laser gyros
- 3 laser gyros x,y,z
- beam of light split in 2 opposite directions
32
How often is the FMS updated
28 days
33
Explain deviation
- difference between compass and magnetic
34
Explain variation
- difference between magnetic and true
35
How does the turn indicator work
- bubble stays middle for coordinated turn (steady turn)
36
How do instruments dampen compass movements
Fluid
37
Explain magnetic compass lighting
- light cancels out magnetic field, so no interference
38
Where are flux valves located
- wing tip/vertical stab
- further from any electrical appliances
39
When does the STALL warning occur
- before
40
What happens when AOA exceeds alpha max
- Stall
41
How can the alpha max be changed
Depending on flaps, slats, LG etc
42
What type of movement do stick shakers produce
Mechanical vibration
43
Do the EFIS system get dimmer or brighter in the night
Dimmer
44
What gyro is used for the NAV screen
Directional gyro (horizontal)
45
What gyro does the PFD use
Vertical gyro
46
What movements do vertical gyros produce
Pitch and roll
47
Explain rose
360 degrees
48
Explain arc
180 degrees
49
Explain flight director
- tells pilot where to fly (manually)
- e.g. left / right
50
Explain qualitive
- colour
51
Explain quantitative
- number
52
When is static air temp = total air temp
On ground
53
Is pitch trim ON the entire flight
- yes
54
Explain yaw dumper
- counteract dutch roll
- rudder moves opposite direction
- on during entire flight
55
Explain flight envelope
- autopilot fly within specific parameters
- puts small manoeuvre, not harsh
56
Explain inner loop (closed)?
- change from selected flight path and returning to original altitude
57
Explain outer loop
- Controls inner loop (gives commands e.g. altitude, heading etc)
58
How many autopilot systems are required as a minimum
2
59
Explain fail operational
- operational despite failure (auto land still possible)
60
Explain fail passive
- withstand failure without endangering safety (manual)
61
Explain VHF
* 30-300MHz
* 108-118 -> NAV
* 118-137 -> COMMS
* BW used to be 25khz but now 8.33khz
62
What is VHF 3 used for
ACARS
63
Explain HF
* 3-30MHz
- long range (worldwide)
64
What is used to overcome HF problems
SATCOM
65
What would be used for sky wave
- HF
- VHF
- SATCOM
HF
66
What would be used for space wave
- HF
- VHF
- SATCOM
SATCOM
67
What would be used for surface/ground wave
- HF
- VHF
- SATCOM
- VHF
68
Function of ACARS
Reduce pilot work load
69
Explain a antenna tuning unit
- electrically changes the aerial length
70
What does SELCAL simply do
- Filters unwanted radio transmissions
- used for both VHF and HF
71
Explain steering beam
- Antenna changes direction to lock onto SATCOM
- if not it goes to the next available SATCOM
72
If ACARS does not go through VHF, what can be alternatively used
SATCOM
73
Is FDR and CVR connected together
Yes
74
How many units of FDR and CVR is available on an aircraft
2
75
How does the FDR know when to start and end recording of flight
- engine oil pressure switch
- airspeed indicator
76
How many hours is stored on the FDR and CVR
25
77
Where is the FDR + CVR located
Rear aft bulkhead
78
How long does the underwater locator beacon transmit for
Continuous for at least 90 days
79
What frequency does the pinger transmit at
37.5 KHz
80
The underwater locator beacon and FdR can withstand water depths of
> 3000 metres
