Navigation

Question 1

VHF

Answer 1

Very High Frequency

Question 2

HF

Answer 2

High Frequency

Question 3

ACARS

Answer 3

Aircraft Communication Addressing and Reporting System

Question 4

ELT

Answer 4

Emergency Locator Transmitter

Question 5

ADF

Answer 5

Automatic Direction Finder

Question 6

VOR

Answer 6

VHF Omnidirectional Range

Question 7

DME

Answer 7

Distance Measuring Equipment

Question 8

ILS

Answer 8

Instrument Landing System

Question 9

GPS

Answer 9

Global Positioning System

Question 10

TCAS

Answer 10

Traffic Collision Avoidance System

Question 11

GPWS

Answer 11

Ground Proximity Warning System

Question 12

RA

Answer 12

Radio Altimeter

Question 13

ADS-B

Answer 13

Automatic Dependent Surveillance-Brodcast

Question 14

How does ADF operate?

Answer 14

Uses a ground signal transmitted from a NDB.

Question 15

Why does ADF use a loop and sense antenna?

Answer 15

To decipher the fields to indicate the direction of transmission

Question 16

How does an ADF move the needle?

Answer 16

It uses a rectified DC signal to drive a motor that moves the needle known as syncro

Question 17

VOR signal ground unit due north?

Answer 17

Signals in phase 0° magnetic radial

Question 18

VOR signal ground unit due south?

Answer 18

Signals out of phase 180° magnetic radial

Question 19

How does the DME signal differ between aircraft?

Answer 19

A string of integration pulses.

Question 20

What frequencies does a DME use?

Answer 20

UHF

Question 21

Why is ILS used?

Answer 21

Poor visibility landing

Question 22

How does a localizer work?

Answer 22

It sends out two different signals for left and right and the middle is a combination of the two.

Question 23

What frequency does a localizer use?

Answer 23

VHF

Question 24

What frequency does a glideslope use?

Answer 24

UHF

Question 25

How many GPS satellites do you need to determine altitude?

Answer 25

4

Question 26

How do you increase the accuracy of GPS?

Answer 26

With wide area augmentation system (WAAS)

Question 27

What doe Mode C in a transponder provide?

Answer 27

Pressure altitude of the aircraft.

Question 28

What is TCAS I?

Answer 28

A Traffic Advisory (TA) issued to assist the pilot with visual acquisition

Question 29

What is TCAS II?

Answer 29

A Resolution Advisory (RA) this tell each aircraft what action to take to avoid a collision.

Question 30

How is an ELT activated?

Answer 30

By excessive G-forces experienced during a crash

Question 31

What are the two types of ELTs?

Answer 31

Analog and digital, digital has a higher frequency and strong signal.

Question 32

How often should ELT batteries be inspected?

Answer 32

Within 12 months of the previous inspection

Question 33

What frequency does ADF use?

Answer 33

MF

Question 34

What frequency doe DME use?

Answer 34

UHF