Air Navigation

Question 1

What is frequency range of NBDs

Answer 1

190 to 1750 kHz

Question 2

Which is the only radio beacons that don’t transmit continuous 3 letter identification code except during voice transmissions

Answer 2

Compass locators

Question 3

What is a compass locator

Answer 3

Radio beacon used with the instrument landing system markers

Question 4

How do you know is a radio beacon does not have voice transmissions

Answer 4

The class designator has the Letter “W” (without voice)

Question 5

Why should you continuously monitor an NDBs identification

Answer 5

Because ADFs don’t have a warning flag to tell you erroneous information is being displayed

Question 6

What does VOR stand for

Answer 6

VHF omnidirectional range

Question 7

What is the frequency band for VOR

Answer 7

108 to 117.95 MHz

Question 8

What is only positive way to identify VOR

Answer 8

By its Morse code identifier or recorded voice automatic voice identification

Question 9

What is accuracy of VOR

Answer 9

+ or -1°

Question 10

How much can propeller or helicopter rotor speeds affect VOR

Answer 10

Plus or -6°

Question 11

What is the system that is replacing VOR’s

Answer 11

Performance based navigation or PBN

Question 12

What is GNSS

Answer 12

Global navigation satellite system

Question 13

The FAA is retaining a limited network of VORs called what

Answer 13

VOR MON

Question 14

VOR MON Will provide nearly continuous signal coverage at 5000 feet AGL across the nation except for where

Answer 14

The Western US Mountain is area WUSMA

Question 15

What is MON

Answer 15

New VOR Minimum operational network

Question 16

The VOR MON Ensures that aircraft are always within how many nautical miles of a MON airport

Answer 16

100 nautical miles

Question 17

Are WASS used flying under part 91 required to carry VOR avionics

Answer 17

No

Question 18

What is VOT and how do you use it

Answer 18

VOR test facility.
Tune in frequency usually in ground, with CDI centered Omni bearing selector should read zero and from or OBS will read 180 and to

Question 19

What are VOR accuracy requirements of ground and airborne checks

Answer 19

Plus or -4° on the ground or plus or -6° in the air

Question 20

Where can you find locations of airborne VOR checkpoints ,ground checkpoints and VOTs

Answer 20

Chart supplement US

Question 21

Is TACAN UHF or VHF

Answer 21

UHF

Question 22

What is range and accuracy of DME equipment

Answer 22

199 nautical miles at line of sight altitude with an accuracy of better than 1/2 mile or 3% of the distance which ever is greater

Question 23

Is DME actual horizontal distance

Answer 23

No it is slant range distance

Question 24

What is the operating frequency range of DME

Answer 24

960 MHz to 1215 MHz

Question 25

What is the difference between the VOR or localizer coded tone and the DME coded tone

Answer 25

The VOR localizer coded tone is modulated at 1020 Hz and the coded tone is modulated at 1350 Hz

Question 26

How do you know if DME is operative

Answer 26

A single coded identification with a repetition interval of approximately 30 seconds

Question 27

What is the frequency range of the ILS localizer transmitter

Answer 27

108.1 to 111.95 MHz

Question 28

What is the iOS course width at the runway threshold

Answer 28

700 feet

Question 29

What are the limits of localizer coverage

Answer 29

10° either side of the course along a radius of 18 nautical miles from the antenna and 10 to 35° either side of the course along a radius of 10 nautical miles

Question 30

What is LDA

Answer 30

Localizer type directional I’d

Question 31

When are straight in minimums versus circling minimum used with an LDA

Answer 31

Straight in minimums are used if alignment does not except 30° between the course and the runway circling minimums are used if 30° or greater

Question 32

What is the UHF I have is glideslope transmitter operating frequency

Answer 32

Between 329.15 MHz and 335 MHz

Question 33

Where is the glideslope transmitter located on the airfield

Answer 33

Between 750 feet and 1250 feet from the approach end of the runway and offset 250 to 650’ from the runway centerline

Question 34

Where does glidepath intersect the middle marker in the outer marker

Answer 34

 The ILS Glidepath intersects the middle marker at about 200 feet and the auto marker at about 1400 feet above the runway elevation

Question 35

How far out is the glidepath usable

Answer 35

10 nautical miles

Question 36

What is difference between inoperative localizer and inoperative glide-slope on ILS

Answer 36

If localizer fails ILS Not authorized | If glide slope fails approach reverts to non precision

Question 37

What is SDF

Answer 37

Simplified directional facility. | Similar to ILS with no glide slope. Signal can be off centerline by 35 degrees.

Question 38

How many satellites make up the GPS system

Answer 38

24 ensure that 5 are visible to a user at all times

Question 39

How many satellites are required to establish an accurate 3 dimensional picture

Answer 39

Minimum of 4 satellites

Question 40

What is RAIM

Answer 40

Receiver autonomous integrity monitoring which ensures GPS signal integrity

Question 41

What is required for RAIM

Answer 41

Five satellites or four satellites and a barometric input

Question 42

What is SA in relation to GPS

Answer 42

Selective availability is method by which accuracy of GPS is intentionally degraded. Discontinued in 2000.

Question 43

When is active monitoring of alternate means of navigation required during IFR GPS operations

Answer 43

When GPS RAIM capability is lost

Question 44

What is PBN

Answer 44

Performance based navigation

Question 45

Aircraft navigation by IFR approved GPS are considered what type of aircraft

Answer 45

Performance based navigation (PBN) and have special equipment suffixes

Question 46

What must you do if GIS avionics become inoperative

Answer 46

Advise ATC and amend equipment suffix for flight plan

Question 47

What is WAAS

Answer 47

Wide area augmentation system - it’s the US version of a satellite based augmentation system (SBAS)

Question 48

Is ground based navigation equipment required to be installed and operating for IFR enroute operations when using GPS/WAAS navigation system

Answer 48

No

Question 49

What is limitation to fly instrument approach/departure procedures with GPS

Answer 49

Limited to US airspace

Question 50

What is CDI sensitivity in order to fly published IFR charted departures

Answer 50

Set to terminal (plus or minus 1 NM)