IFR Navigation

Question 1

Types of NAVAIDs

Answer 1

Space-based

Ground-based

Question 2

GPS is composed of the three following major segments:

Answer 2

Space segment
Control segment
User segment

Question 3

How many satellites are need for GPS?

Answer 3

A minimum of four satellites is necessary.

Question 4

GPS status information is also available by means of:

Answer 4

Telephone

Internet

NOTAMs

Question 5

In addition to the NOTAMs, pilots are required to: (AR 95-1)

Answer 5

Check Database Currency

Enter appropriate suffix on flight plan

Question 6

VOR

Answer 6

Very High Frequency (VHF) Omnidirectional Range

Question 7

VOR accuracy

Answer 7

Accuracy of course alignment is generally +/- 1°

Question 8

VOR Operational Characteristics

Answer 8

Line-of-sight restriction

Most are equipped for voice transmission

Identified by its Morse Code identification

Radials

Question 9

The codes can be found in the IFR Supplement, Item 30, Radio Class Code:

Answer 9

T – Normal anticipated interference-free service 25 NM up to 12,000’ AGL
L – Normal anticipated interference-free service 40 NM up to 18,000’ AGL
HA – Normal anticipated interference-free service below 14,500’ AGL: 40 NM;
14,500’ – 60,000’ AGL: 100 NM (contiguous 48 states only); 18,000’ – 45,000’ AGL: 130 NM
U – Unknown

Question 10

VOR test facility (VOT) tolerances

Answer 10

Should an error in excess of ± 4 degrees be indicated through use of a ground check, or ± 6 degrees using the airborne check, IFR flight will not be attempted without first correcting the source of the error.