Exam quiz Navigation - BPL Gas Balloon Pilot Licence

Question 1

Where does the inclination reach its lowest value?

Accepted Answer

At the magnetic equator

Answer

At the geographic equator

Answer

At the magnetic poles

Answer

At the geographic poles

Question 2

Given: TC: 183°; WCA: +011°; MH: 198°; CH: 200° What are the VAR and the DEV?

Accepted Answer

VAR: 004° W. DEV: -002°

Answer

VAR: 004° E. DEV: -002°

Answer

VAR: 004° W. DEV: +002°

Answer

VAR: 004° E. DEV: +002°

Question 3

The term 'civil twilight' is defined as...

Accepted Answer

The period of time before sunrise or after sunset where the midpoint of the sun disk is 6 degrees or less below the true horizon

Answer

The period of time before sunrise or after sunset where the midpoint of the sun disk is 12 degrees or less below the true horizon

Answer

The period of time before sunrise or after sunset where the midpoint of the sun disk is 6 degrees or less below the apparent horizon

Answer

The period of time before sunrise or after sunset where the midpoint of the sun disk is 12 degrees or less below the apparent horizon

Question 4

1000 ft equal...

Accepted Answer

300 m

Answer

3000 m

Answer

30 km

Answer

30 m

Question 5

With Central European Time (CET) given as UTC+1, what UTC time corresponds to 1700 CET?

Accepted Answer

1600 UTC

Answer

1800 UTC

Answer

1500 UTC

Answer

1700 UTC

Question 6

A distance of 7.5 cm on an aeronautical chart represents a distance of 60.745 NM in reality. What is the chart scale?

Accepted Answer

1 : 1500000

Answer

1 : 500000

Answer

1 : 1000000

Answer

1 : 150000

Question 7

Which are the official basic units for horizontal distances used in aeronautical navigation and their abbreviations?

Accepted Answer

Nautical miles (NM), kilometers (km)

Answer

Feet (ft), inches (in)

Answer

Yards (yd), meters (m)

Answer

Land miles (SM), sea miles (NM)

Question 8

The term 'isogonal' or 'isogonic line' is defined as a line on an aeronautical chart, connecting all points with the same value of...

Accepted Answer

Variation

Answer

Inclination

Answer

Heading

Answer

Deviation

Question 9

What is the distance between the two parallels of longitude 150°E and 151°E along the equator?

Accepted Answer

60 NM

Answer

60 km

Answer

1 NM

Answer

111 NM

Question 10

The term 'agonic line' is defined as a line on Earth or an aeronautical chart, connecting all points with the...

Accepted Answer

Variation of 0°

Answer

Deviation of 0°

Answer

Inclination of 0°

Answer

Heading of 0°

Question 11

What is the difference in time when the sun moves 20° of longitude?

Accepted Answer

1:20 h

Answer

1:00 h

Answer

0:20 h

Answer

0:40 h

Question 12

An aircraft travels 100 km in 56 minutes. The ground speed (GS) equals...

Accepted Answer

107 km/h

Answer

93 kt

Answer

198 kt

Answer

58 km/h

Question 13

Given: TC: 183°; WCA: +011°; MH: 198°; CH: 200° What are TH and VAR?

Accepted Answer

TH: 194°. VAR: 004° W

Answer

TH: 172°. VAR: 004° E

Answer

TH: 194°. VAR: 004° E

Answer

TH: 172°. VAR: 004° W

Question 14

With Central European Summer Time (CEST) given as UTC+2, what UTC time corresponds to 1600 CEST?

Accepted Answer

1400 UTC

Answer

1700 UTC

Answer

1600 UTC

Answer

1500 UTC

Question 15

The distance between two airports is 220 NM. On an aeronautical navigation chart the pilot measures 40.7 cm for this distance. The chart scale is...

Accepted Answer

1 : 1000000

Answer

1 : 2000000

Answer

1 : 500000

Answer

1 : 250000

Question 16

Where are the two polar circles?

Accepted Answer

23.5° north and south of the poles

Answer

23.5° north and south of the equator

Answer

At a latitude of 20.5°S and 20.5°N

Answer

20.5° south of the poles

Question 17

How many suitably positioned GPS satellites are needed for a basic three-dimensional position solution, without a separate RAIM integrity check?

Accepted Answer

Four

Answer

Five

Answer

Two

Answer

Three

Question 18

What distance corresponds to one degree difference in latitude along any degree of longitude?

Accepted Answer

60 NM

Answer

60 km

Answer

30 NM

Answer

1 NM

Question 19

The circumference of the Earth at the equator is approximately... See figure (NAV-002)

Accepted Answer

21600 NM

Answer

40000 NM

Answer

12800 km

Answer

10800 km

Question 20

What is meant by the term "terrestrial navigation"?

Accepted Answer

Orientation by ground features during visual flight

Answer

Orientation by instrument readings during visual flight

Answer

Orientation by GPS during visual flight

Answer

Orientation by ground celestial object during visual flight

Question 21

Assume two arbitrary points A and B on the same parallel of latitude, but not on the equator. Point A is located on 010°E and point B on 020°E. The rhumb line distance between A and B is always...

Accepted Answer

Less than 600 NM

Answer

More than 300 NM

Answer

Less than 300 NM

Answer

More than 600 NM

Question 22

Which are the properties of a Mercator chart?

Accepted Answer

The scale increases with latitude, great circles are depicted as curved lines, rhumb lines are depicted as straight lines

Answer

The scale is constant, great circles are depicted as curved lines, rhumb lines are depicted as straight lines

Answer

The scale increases with latitude, great circles are depicted as straight lines, rhumb lines are depicted as curved lines

Answer

The scale is constant, great circles are depicted as straight lines, rhumb lines are depicted as curved lines

Question 23

What is the distance between the parallels of latitude 48°N and 49°N along a meridian line?

Accepted Answer

60 NM

Answer

10 NM

Answer

111 NM

Answer

1 NM

Question 24

What ground features should preferably be used for orientation during visual flight?

Accepted Answer

Rivers, railroads, highways

Answer

Power lines

Answer

Border lines

Answer

Farm tracks and creeks

Question 25

Electronic devices on board of an aeroplane have influence on the...

Accepted Answer

Direct reading compass

Answer

Artificial horizon

Answer

Airspeed indicator

Answer

Turn coordinator

Question 26

UTC is...

Accepted Answer

An obligatory time used in aviation

Answer

A local time in Central Europe

Answer

A zonal time

Answer

Local mean time at a specific point on Earth

Question 27

Which are the properties of a Lambert conformal chart?

Accepted Answer

The chart is conformal and nearly true to scale

Answer

Great circles are depicted as straight lines and the chart is an equal-area projection

Answer

Rhumb lines are depicted as straight lines and the chart is conformal

Answer

The chart is conformal and an equal-area projection

Question 28

The term ‚magnetic course' (MC) is defined as...

Accepted Answer

The angle between magnetic north and the course line

Answer

The angle between true north and the course line

Answer

The direction from an arbitrary point on Earth to the magnetic north pole

Answer

The direction from an arbitrary point on Earth to the geographic North Pole

Question 29

When using a GPS for tracking to the next waypoint, a deviation indication is shown by a vertical bar and dots to the left and to the right of the bar. What statement describes the correct interpretation of the display?

Accepted Answer

The deviation of the bar from the center indicates the track error as absolute distance in NM; the scale for full deflection depends on the operating mode of the GPS

Answer

The deviation of the bar from the center indicates the track error as absolute distance in NM; the scale for full deflection is +-10 NM

Answer

The deviation of the bar from the center indicates the track error as angular distance in degrees; the scale for full deflection depends on the operating mode of the GPS

Answer

The deviation of the bar from the center indicates the track error as angular distance in degrees; the scale for full deflection is +-10°

Question 30

What is the difference in time when the sun moves 10° of longitude?

Accepted Answer

0:40 h

Answer

0:04 h

Answer

0:30 h

Answer

1:00 h

Question 31

5500 m equal...

Accepted Answer

18000 ft

Answer

7500 ft

Answer

10000 ft

Answer

30000 ft

Question 32

Point A on the Earth's surface lies exactly on the parallel of latitude of 47°50'27''N. Which point is exactly 240 NM north of A?

Accepted Answer

51°50'27''N

Answer

53°50'27''N

Answer

49°50'27''N

Answer

43°50'27''N

Question 33

Which statement is correct with regard to the polar axis of the Earth?

Accepted Answer

The polar axis of the Earth crosses the geographic South Pole and the geographic North Pole and is perpendicular to the plane of the equator

Answer

The polar axis of the Earth crosses the geographic South Pole and the geographic North Pole and is at an angle of 23.5° to the plane of the equator

Answer

The polar axis of the Earth crosses the magnetic south pole and the magnetic north pole and is perpendicular to the plane of the equator

Answer

The polar axis of the Earth crosses the magnetic south pole and the magnetic north pole and is at an angle of 66.5° to the plane of the equator

Question 34

Given: TC: 179°; WCA: -12°; VAR: 004° E; DEV: +002° What are MH and MC?

Accepted Answer

MH: 163°. MC: 175°

Answer

MH: 167°. MC: 175°

Answer

MH: 167°. MC: 161°

Answer

MH: 163°. MC: 161°

Question 35

The term 'True Course' (TC) is defined as...

Accepted Answer

The angle between true north and the course line

Answer

The direction from an arbitrary point on Earth to the geographic North Pole

Answer

The angle between magnetic north and the course line

Answer

The direction from an arbitrary point on Earth to the magnetic north pole

Question 36

Given: TC: 183°; WCA: +011°; MH: 198°; CH: 200° What are the TH and the DEV?

Accepted Answer

TH: 194°. DEV: -002°

Answer

TH: 194°. DEV: +002°

Answer

TH: 172°. DEV: +002°

Answer

TH: 172°. DEV: -002°

Question 37

What is the difference in latitude between A (12°53'30''N) and B (07°34'30''S)?

Accepted Answer

20°28'00''

Answer

05°19'00''

Answer

20.28°

Answer

05.19°

Question 38

What is the great circle distance between two points A and B on the equator when the difference between the two associated meridians is exactly one degree of longitude?

Accepted Answer

60 NM

Answer

216 NM

Answer

400 NM

Answer

120 NM

Question 39

The rotational axis of the Earth runs through the...

Accepted Answer

Geographic North Pole and on the geographic South Pole

Answer

Magnetic north pole and on the magnetic south pole

Answer

Geographic North Pole and on the magnetic south pole

Answer

Magnetic north pole and on the geographic South Pole

Question 40

The shortest distance between two points on Earth is represented by a part of...

Accepted Answer

A great circle

Answer

A small circle

Answer

A rhumb line

Answer

A parallel of latitude

Question 41

Which approximate, geometrical form describes the shape of the Earth best for navigation systems?

Accepted Answer

Ellipsoid

Answer

Sphere of ecliptical shape

Answer

Flat plate

Answer

Perfect sphere

Question 42

Which direction corresponds to 'compass north' (CN)?

Accepted Answer

The direction to which the direct reading compass aligns due to earth's and aircraft's magnetic fields

Answer

The most northerly part of the magnetic compass in the aircraft, where the reading takes place

Answer

The direction from an arbitrary point on Earth to the geographical North Pole

Answer

The angle between the aircraft heading and magnetic north

Question 43

The angle between compass north and magnetic north is called...

Accepted Answer

Deviation

Answer

Inclination

Answer

WCA

Answer

Variation

Question 44

London (EGLL) is located at 000° 10'W, Cardiff (EGFF) at 003° 44'W. The latitude of both positions can be considered as equal. What is the difference of sunrise and sunset times, expressed in UTC, between London and Cardiff?

Accepted Answer

In London the sunrise and sunset are about 14 minutes earlier than in Cardiff

Answer

In London the sunrise and sunset are about 4 minutes later than in Cardiff

Answer

In London the sunrise is 4 minutes later and sunset is 4 minutes earlier than in Cardiff

Answer

In London the sunrise is 14 minutes earlier and sunset is 14 minutes later than in Cardiff

Exam simulation Navigation - BPL Gas Balloon Pilot Licence

Exam simulation EASA BPL Gas Balloon Theory in English Navigation 120 questions on 120 minutes

Exam simulation Navigation - BPL Gas Balloon Pilot Licence

Exam simulation EASA BPL Gas Balloon Theory in English Navigation 120 questions on 120 minutes

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