NAV

Question 1

1 km = ft?

Answer 1

3300 ft

Question 2

What is a true heading?

Answer 2

The angle measured clockwise between the true north and where the nose of the aircraft is pointing to

Question 3

Types of projections

Answer 3

• Conical projections (simple and Lambert’s)
• Cylindrical projections
• Polar stereographic projections (azimuthal projections)

Question 4

1 km = NM?

Answer 4

0.5 NM

Question 5

What is WGS84

Answer 5

World Geodetic Reference System

Question 6

What is the mean Earth diameter?

Answer 6

12 753 km (6 876 NM)

Question 7

What is the mean Earth circumference?

Answer 7

40 000 km (21 000 NM)

Question 8

What is true bearing?

Answer 8

The angle between the true north and the direction from the aircraft and a certain point

Question 9

1 m = ft?

Answer 9

3.3 ft

Question 11

1 L = GAL?

Answer 11

0.3 GAL

Question 12

What is a rhumb line?

Answer 12

• Loxodrome

- Line on the surface of the earth which cuts all meridians at the right angles

Question 13

What is the rotational speed at the Equator?

Answer 13

1 670 km/h (900 kt) - 15 degrees/hour

Question 14

1 km/h = kt?

Answer 14

0.5 kt

Question 15

What is the mean Earth radius?

Answer 15

6 367 km (3 438 NM)

Question 17

1 lb = kg?

Answer 17

0.5 kg

Question 18

What is a parallel?

Answer 18

A parallel is a small circle which is parallel to the equator and perpendicular to the polar axis

Question 19

What is a variation?

Answer 19

Variation is the angle between the true north and the magnetic north measured in degrees East or West

Question 19

What is a deviation?

Answer 19

Deviation is the angle between the magnetic north and the compass north measured in degrees East or West

Question 20

What is a true track?

Answer 20

The angle between the true north and the direction of the aircraft trajectory

Question 21

1 NM = ft?

Answer 21

6000 ft

Question 21

1 kg = lb?

Answer 21

2 lb

Question 22

1 kt = km/h?

Answer 22

1.8 km/h

Question 23

1 NM = km?

Answer 23

1.8 km

Question 24

What is a metre?

Answer 24

The metre is an fundamental unit of length in the International System of Unites

Question 27

1 kt = ft/min?

Answer 27

100 ft/min

Question 28

Difference between a Great Circle and a Rhumb line

Answer 28

…is caused by convergence of the meridians to the poles, therefore, we find the greatest difference between them in higher latitudes where the convergence is the greatest, along the equator there is no difference between rhumb line and a great circle.

Question 29

What are the two concepts of navigation?

Answer 29

Positioning and guidance

Question 30

1 ft = m?

Answer 30

0.3 m

Question 30

What is a kilometre?

Answer 30

The kilometre is a common unit for distances in all countries which use the metric system

Question 30

What is a relative baring?

Answer 30

Relative bearing is the angle between the longitudinal axis of the aircraft and the bearing

Question 32

What is a twilight?

Answer 32

Twilight is a period of the day, after sunset or before sunrise, when an observer receives sunlight reflected from the atmosphere

Question 33

1 GAL = L?

Answer 33

4 L

Question 33

What is a great circle

Answer 33

• Orthodrome
• A circle on a surface of a sphere whose plane passes trough the centre of a sphere
• the shortest distance between two points on the earths sphere

Question 35

Types of charts

Answer 35

• Conformal charts
• Equidistant charts
• Great circle charts
• Rhumb line charts

Question 35

What is a meridian?

Answer 35

Meridian is a semi-great circle joining the north and the south poles