11.5.2 Specific

Question 1

What 3 communication systems can modern aircraft be divided into?

Answer 1

. Aircraft communications
. Radio communications
. Accident investigations

Question 2

What is the purpose of static discharge?

Answer 2

Continuously discharge static electricity to prevent build up of high voltages on fuselage

Question 3

How many VHF and HF systems does the aircraft have?

Answer 3

3 VHF
2 HF

Question 4

What does the flight interphone system do?

Answer 4

Communicates between the cockpit and crew members

Question 5

What is purpose of passenger address system?

Answer 5

Gives information to passengers

Question 6

What is the priority of the PA?

Answer 6

. Cockpit
. Cabin crew
. Pre recorded
. Boarding music

Question 7

What does a high chime attention getter mean?

Answer 7

Sounds when a passenger calls the cabin crew

Question 8

What does a high- low chime attention getter mean?

Answer 8

When one crew wants another crew

Question 9

What does a low chime attention getter mean?

Answer 9

Fasten seat belts and no smoking signs

Question 10

What does CVR stand for and why do we have one?

Answer 10

Cockpit voice recorder
Helps in accident investigations

Question 11

What are the two different voice recorders?

Answer 11

. Analogue tape recorder
. Digital solid state recorder

Question 12

How many separate in our channels does the CVR have?

Answer 12

4

Question 13

What is the VHF communication system used for?

Answer 13

For short distance voice and data communication with ground station or other aircraft’s

Question 14

What’s the HF communication system used to?

Answer 14

Long distance communication

Question 15

What’s the VHF frequency?

Answer 15

118 to 136.975mHZ

Question 16

What do modern aircraft rely on for long distance communications?

Answer 16

SATCOM system

Question 17

How many independent HF systems are on a long range aircraft?

Answer 17

2

Question 18

What are the 3 components of a HF system?

Answer 18

. Transceiver
. Antenna
. Antenna coupler

Question 19

Where is the transceiver located?

Answer 19

In avionics compartment

Question 20

Where is the antenna located?

Answer 20

In the leading edge of vertical stabiliser

Question 21

Where is the antenna couple installed?

Answer 21

Near the antenna

Question 22

What does ACARS do?

Answer 22

Data link communication system
Transfers messages and data between aircraft and ground

Question 23

Who starts manual reports?

Answer 23

Pilots, airline ground staff and ATC

Question 24

What does SATCOM provide?

Answer 24

Reliable worldwide digital data transfer

Question 25

What is SATCOMS 3 main components?

Answer 25

. Satelliates . Aircraft earth stations . Ground earth stations

Question 26

Why are emergency locator transmitters installed?

Answer 26

To help search and rescue find a crashed aircraft

Question 27

What 3 international emergency frequency’s are there? And which one is main?

Answer 27

. 12.1.5mHZ - main . 243mHZ . 406mHZ

Question 28

What 3 systems does a radio nav system have?

Answer 28

. ADF . VOR . ILS

Question 29

What is the function of ADF system?

Answer 29

Uses radio signals from ground stations to calculate the direction to the station

Question 30

How does VOR work?

Answer 30

The VOR receiver calculates the magnetic bearing from two signals transmitted by a ground station

Question 31

The VOR ground station transmits how many signals?

Answer 31

2

Question 32

What does ADF stand for?

Answer 32

Automatic direction finder

Question 33

VOR outputs are provided to what?

Answer 33

. Auto pilot . Flight director . FMS - flight mangment systems

Question 34

What does the glide slope ground station do?

Answer 34

Transmits 2 lobes to give a descent path to the touchdown point on runway

Question 35

What is purpose of ILS?

Answer 35

Provides lateral and vertical position data to line the aircraft up on approach to runway

Question 36

For CAT 1 what are the requirements?

Answer 36

800m of runway visibility at 200m of height

Question 37

What are the requirements for CAT 2?

Answer 37

400m of runways visibility of height of 100m

Question 38

What are the requirements for cat 3?

Answer 38

Less than 200m of visibility at height below 100m

Question 39

At what feet does the radio altimeter work at?

Answer 39

Below 2500ft

Question 40

What is function of radio altimeter?

Answer 40

Measure the vertical distance between the aircraft and ground

Question 41

What is purpose of ground proximity warning system GOWSP?

Answer 41

Warn flight crew when aircraft is too close too ground Auto set to less than 2500ft

Question 42

How does DME system measure the distance to the ground station?

Answer 42

Transmits a signal to the ground station called interrogation and by counting the time it takes to revive and reply signal

Question 43

What does the weather radar presents?

Answer 43

A map type display of weather conditions in front of aircraft 180 degree sweep

Question 44

What are the three identification codes?

Answer 44

7500 7600 7700

Question 45

What is the ident code for emergency?

Answer 45

7700

Question 46

What is ident code for hijacking?

Answer 46

7500

Question 47

What is ident code for radio faliure?

Answer 47

7600

Question 48

What does TCAS stand for?

Answer 48

Traffic alert and collision avoidance system

Question 49

What is the purpose of TCAS?

Answer 49

Protects the airspace around TCAS equipped aircraft’s

Question 50

What are the 2 TCAS alerts?

Answer 50

. Traffic advisor (traffic traffic) . Resolution advisory - corrective and preventative actions

Question 51

What do Gyros measure?

Answer 51

The rotation around the 3 axes: pitch roll and heading(yaw)

Question 52

What do accelerometers measure?

Answer 52

The movements along aircraft axes = x and y accelerations

Question 53

What is purpose of autopilot?

Answer 53

Reduces the pilots workload by controlling the flight automatically as well as landing in poor weather

Question 54

What system dampens the Dutch roll oscillations?

Answer 54

The yaw damper

Question 55

On older aircraft the autopilot controls are found on pedestal. Where is it found on modern aircraft?

Answer 55

On glare shield

Question 56

What is the important job of inner loop?

Answer 56

Controls the attitude of aircraft and is always active

Question 57

What does the outer loop do?

Answer 57

Controls aircraft automatically to capture and stabilise flight path

Question 58

What is purpose of servomotor?

Answer 58

Move the elevator directly or uses mechanical in out of hydraulic power unit

Question 59

What does the flight director do?

Answer 59

Shows the pilot how to fly the aircraft manually

Question 60

What is the function of auto throttle system?

Answer 60

Automatically control thrust if the engine to required value

Question 61

What is pitch trim system used for?

Answer 61

Maintain longitudinal stability without permanent elevator deflections

Question 62

What method is used to disconnect the auto throttle system?

Answer 62

Push auto throttle quick disconnect push button

Question 63

What does the auto pilot disengage warning consist of?

Answer 63

Red flashing light of PFD sometimes an aural