11.5.2 - Avionics Systems

Question 1

Which type of gyro can be canted: (titled off at 30^)

Answer 1

A Rate Gyro

Question 2

IRU = Inertial Reference Unit and depends upon which 3 things:

Answer 2

1. Accelerometer
2. Gyros
3. Strap-down

Question 3

Which type of gyro controls the yaw damper?

Answer 3

Rate gyro (horizontal gyro)

Question 4

What are the 4 automatic flight control subsystems?

and what is each done by (excl 1)

Answer 4

1. Command
2. Error-sensing (done by gyros)
3. Correction (servos)
4. Follow-up (displacement or rate pickput)

Question 5

Answer 5

Question 6

What is the range of the VHF>

Answer 6

up to 300km

Question 7

Static dischargers help to eliminate radio ______

Answer 7

interference

Question 8

HF communication requires what to tune the antennan to the frequency?

Answer 8

An antenna coupler

Question 9

What colour is the SELCAL light?

Answer 9

Blue

Question 10

Where is the SATCOM link on the aircraft?

Answer 10

Question 11

SATCOM consists of what 3 things and what is it?

Answer 11

1. Space segment (satellite)
2. Ground-Earth station (GEs)
3. Aircraft station

It is voice and data satellite communication

Question 12

ACARS stands for?

what frequences does it use?

Answer 12

ACARS = Aircraft Communication Addressing and Reporting System

VHF or SATCOM

Question 13

Differentiate between

Flight Interphone

Cabin Interphone

Service Interphone

Answer 13

Flight Interphone = between cockpit crew

Cabin Interphone = between flight attendants

Service Interphone = jacks throughout aircraft for service personnel to contact cockpit

Question 14

Multiplexing is to ____

Demultiplexing is to _____

Answer 14

Multiplexing is one to many

Demultiplexing is to many to one

Question 15

What is the frequency of the ULB ?

Answer 15

ULB = Underwater Locator Beacon

37 KHz

Question 16

The architecture of the system is composed of a constellation of ___ satellites

How many are always available?

Answer 16

25

21 always available