Aircraft Avionics System Review part 1

Question 1

Mounting two communications on an aircraft, how should they be placed in relation to each other?

Answer 1

Top and bottom of fuselage

Question 2

What is the purpose of a feedback signal in an autopilot system?

Answer 2

to adjust the aircraft’s position accurately

or

To provide position feedback and return the control surface to neutral.

Question 3

GPS is used only for long distance over water navigation?

Answer 3

False

Question 4

ADF receiver will utilize two antennas, a loop and a sense antenna?

Answer 4

True

Question 5

Which segment of the GPS system monitors satellite timing and position signal and transmits a correcting signal to correct a deviation on satellite if necessary?

Answer 5

Control Segment

Question 6

An Amplifier

Answer 6

Increase the strength of a signal

Question 7

Automatic Directional Finder (ADF) is a system that will tell the pilot the position of the aircraft on a radio from an AM broadcast station?

Answer 7

False

Question 8

Antenna Length is usually:

Answer 8

¼ & ½

Question 9

A DME system is always used in conjunction with VOR will tell you the distance from the VOR?

Answer 9

True

Question 10

A transfinder aids ATC in identifying aircraft on a radar?

Answer 10

True

Question 11

What are the mechanics responsibilities with aircraft radio systems?

Answer 11

Inspection and installation of radios and antennas only

Question 12

COAX Cable is referred to as a balanced transmission line?

Answer 12

False

Question 13

Skywave:

Answer 13

Moves in straight lines and bounces of the ionosphere

Question 14

What aircraft avionics system uses SHF?

Answer 14

Weather Radar

Question 15

When is an Emergency Landing Transmission (ELT) operational check performed?

Answer 15

Within 5 mins after the hour

Question 16

The VOR Receiver is primarily a?

Answer 16

Navigation

Question 17

A radio Altimeter sends altitude info to the transponder which relays to ATC?

Answer 17

True

Question 18

The weather Radar should not be turned on while on the ground unless special precautions are taken?

Answer 18

True

Question 19

Which part of the ILS tells distance to the runaway?

Answer 19

Marker Beacon

Question 20

Ground Waves

Answer 20

Follows the curvature of the earth

Question 21

What is a de-modular?

Answer 21

Separate Audio frequency from carrier wave

Question 22

A Stormscope system is a low cost severe weather transmission for aircraft that utilizes echo transmission to detect?

Answer 22

True

Question 23

If you increase frequency, the wavelength will?

Answer 23

Decrease

Question 24

What does the Distance Measuring Equipment (DME) do?

Answer 24

Gives Slant distance to VOR Station

Question 25

ADF uses loop antenna to sense radio signal direction?

Answer 25

True

Question 26

VHF cover the frequency range from?

Answer 26

30 to 300 Mhz

Question 27

What is modulation?

Answer 27

Alterating the form of carrier waves

Question 28

What is the minimum clearance between the sea bottom of a fully deflected sea and the radio installed beneath it?

Answer 28

1”

Question 29

Purpose of Doppler plate in an antenna installation?

Answer 29

To provide extra security for a rigid antenna

Question 30

When should the ELT battery be replaced?

Answer 30

As indicated by

Question 31

A BALUN Transformer is used to couple an unbalanced transmission line to a balanced antenna?

Answer 31

True

Question 32

A modulator:

Answer 32

Superimposed signal into carrier wave signal

Question 33

Installation Landing System (ILS) is used for?

Answer 33

Landing aircraft in poor visibility or low ceiling