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Question 1

How many metres in a nautical mile?

Answer 1

1852m

Question 2

How to correct date if crossing the international date line:

Answer 2

If crossing westbound, add a day; if crossing eastbound, go back a day

Question 3

What is the effect of temperature on Mach#?

Answer 3

Increase in temperature will decrease Mach#, vice versa

Question 4

What is the effect of density on Mach#?

Answer 4

Increase in density will decrease Mach#, vice versa

Question 5

What is the consequence of wind on PNR?

Answer 5

PNR moves closer to the departure point with any wind.

Question 6

Examples of great and small circles on earth:

Answer 6

Great Circles: Equator, all meridians of longitude; Small Circles: All parallels of attitude except the equator

Question 7

Factors that affect twilight (How?)

Answer 7

Latitude (main one - increase in latitude=increase in twilight); Season (Greater in summer); Height of observer (Higher = less)

Question 8

Formula for calculating chart scale:

Answer 8

Scale = Earth distance/Chart Distance

Question 9

What is a magnetic pole on earth?

Answer 9

Where earth’s magnetic fields point downwards.

Question 10

Earth tilt axis in degrees:

Answer 10

23.5 degrees

Question 11

Convert 1 degree/1 minute of latitude at the equator to nautical miles:

Answer 11

1 degree latitude = 60nm; 1 minute latitude = 1nm

Question 12

What is a rhumb line?

Answer 12

A line that crosses all meridians of longitude at the same angle.

Question 13

Rhumb lines/Great circles on Lambert Chart

Answer 13

Great circles are straight, rhumb lines are concave to the nearest pole.

Question 14

In the Northern/Southern Hemisphere, a great circle will always lie North/South of rhumb line.

Answer 14

In the Northern Hemisphere, a great circle will always lie North of rhumb line. In the Southern Hemisphere, a great circle will always lie South of rhumb line.

Question 15

Equivalent Still Air Distance formula:

Answer 15

ESAD=(Distance/Groundspeed)xTAS

Question 16

What is the consequence of wind on ETP?

Answer 16

ETP moves into the wind. (Tailwind on outbound - moves closer to departure point; Headwind on outbound - moves closer to destination)

Question 17

Definition of MCT/ECT

Answer 17

When the centre of the rising/setting sun’s disc is 6 degrees below the horizon

Question 18

Rhumb lines/Great circles on Mercator Chart

Answer 18

Rhumb lines are straight; Great circles are convert to the nearest pole (MRS. G Convex Pole/Mercator likes his rhumb straight)

Question 19

When is a chart orthomorphic?

Answer 19

Orthomorphism is regarding ideal properties of a chart. All parallels of latitudes and meridians of longitude must intersect at 90 degrees. Scale of the chart must be correct.

Question 20

What sort of projections are used for mid latitude charts/maps?

Answer 20

Lambert conformal projection

Question 21

No. of satellites required for: 2D fix; 3D fix; RAIM; RAIM with FDE; RAIM with Barometric aiding

Answer 21

2D fix: 3; 3D fix 4; RAIM: 5; RAIM+FDE: 6; RAIM Alerting with Barometric Aiding: 4

Question 22

Convert 1 foot to metre:

Answer 22

1 foot = .3048m

Question 23

What is RVR?

Answer 23

Horizontal visibility along the runway as seen from a point 5m above the touchdown point.

Question 24

Difference between visibility and visibility range

Answer 24

Visibility is only affected by the transparency of air (pollutants etc.); Visibility range is affected by colour/sun/moon/whiteout