General navigation

01-BASIC NAVIGATION

Question 1 of 181

Number: 16529

Question: The maximum difference in distance when proceeding along the great circle between two

positions, in stead of the rhumb line, will occur

1. on East-West tracks at high latitudes. 2. on North-South tracks at low latitudes. 3. on North-South tracks at high latitudes. 4. on East-West tracks at low latitudes.

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Question 2 of 181

Question: An observer is situated on the parallel of 23.5°S. Which statement about the passage of the

apparent sun in relation to this position is correct?

1. It passes through the zenith once a year around March 21st.

2. It passes through the zenith once a year around December 22nd.

3. It passes through the zenith twice a year around March 21st and September 23rd. 4. It passes through the zenith twice a year around June 21st and December 22nd.

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Question 3 of 181

Question: The Directive Force

1. equals the vertical component of the Earth's magnetic field.

2. is the component of the Earth's magnetic field which aligns the compass needle. 3. is about twice as strong on 60°N/S as on the Equator.

4. is zero over the geographical poles.

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Question 4 of 181

Question: At (54°N, 020°W) the sun rises on November 28th at 09:01 UTC. At (44°N, 020°W) the sun will

rise

1. also at 09:01 UTC since both positions are situated on the same meridian. 2. later since the latter position lies further South.

3. at 07:41 LMT.

4. earlier since the latter position lies further South.

Question 5 of 181

Question: What is the correct definition of latitude of a position on the earth?

1. Latitude is the angle between the plane of the ecliptic and the parallel of the position.

2. Latitude is the angle between the plane of the Prime Meridian and the plane of the meridian of the position.

3. Latitude is the angle between the plane of the equator and the line from the centre of the earth to the

position.

4. Latitude is the angle between the earth's rotational axis and the line from the centre of the earth to the position.

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Question 6 of 181

Question: When proceeding, on a given date, along a parallel towards the East, the moment of sunrise will

occur one hour earlier every 15° difference in longitude when it is expressed in

1. LAT (local apparent time)

2. UTC

3. Standard Time 4. LMT

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Question 7 of 181

Question: Geodetic latitude and geocentric latitude coincide

1. at the Poles and on the equator. 2. only at the Poles.

3. at 45ºN/S.

4. only on the equator.

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Question 8 of 181

Question: The time difference in Local Mean Time between sunset at positions A (50°N, 120°E) and B

(50°S, 120°E) on the 21st of November is:

1. some hours and the sun rises earlier in B than in A.

2. negligible small because A and B are located symmetrically to the equator. 3. some hours and the sun rises earlier in A than in B.

4. negligible small because A and B are located at the same meridian.

Question 9 of 181

Question: Deviation on the standby compass is

1. dependent on the heading of the aircraft.

2. positive if the Compass North is to the west of Magnetic North. 3. independent of the latitude of the aircraft's position.

4. zero on the magnetic equator.

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Question 10 of 181

Question: The long term periodic change in the Earth's Magnetic Field 1. is caused by sunspot activity.

2. is reflected in the slow movement of the magnetic poles. 3. affects mainly the compass deviation.

4. is caused by the westerly movement of the geographic North Pole.

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Question 11 of 181

Question: The horizontal component of the earth's magnetic field 1. is minimum at the magnetic equator.

2. is maximum at the magnetic poles.s

3. increases with an increase of the magnetic latitude.

4. is very small close to the magnetic poles.

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Question 12 of 181

Question: Which statement about ST is true?

1. In all cases the standard times at Western longitudes are slow on and at Eastern longitudes fast on UTC. 2. The standard time at 125° W is UTC - 8h20m

3. Standard time is the time that is determined by division of the longitude by 15 and rounding off the answer to the nearest integer.

4. Standard time is determined by the government of the appropriate state and does not necessarily follow

the borders of 15° wide longitude zones.

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Question 13 of 181

1. The duration of the apparent solar day is constant throughout a year due to the constant velocity of the earth in its orbit around the sun.

2. The duration of the apparent solar day is constant throughout a year due to the constant rotational speed of the earth around its axis.

3. The apparent solar day is the period between two successive transits of the mean sun through the same meridian.

4. The apparent solar day is the period between two successive transits of the true sun through the same

meridian.

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Question 14 of 181

Question: Which statement regarding the apparent sun and the mean sun is correct?

1. The apparent sun is not important for navigation as difference in time with the mean sun is maximal 4 seconds.

2. The apparent sun is the visible sun, the mean sun is a fictitious sun.

3. The mean sun moves along the ecliptic, the apparent sun along the celestial equator.

4. The apparent sun is a fictitious sun coupled to UTC, the mean sun is related to the local mean time.

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Question 15 of 181

Question: The declination of the sun is defined as:

1. The arc from the celestial horizon to the sun measured along a vertical line perpendicular on the horizon.

2. The angular distance of the sun north or south of the Celestial equator. 3. The arc along the celestial sphere from zenith to the sun.

4. The arc of the meridian of the sun measured from the nearest pole to the sun.

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Question 16 of 181

Question: The time interval between sunrise and sunset is dependent on: 1. The latitude and the longitude of the observer.

2. The date and the longitude of the observer.

3. The inclination of the axis of the earth and the longitude of the observer.

4. The declination of the sun and the latitude of the observer.

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Question 17 of 181

Question: The definition of True North for any observer is

1. the direction of the observer's meridian to the North Pole.

2. the direction of the observer's Magnetic North corrected for local variation. 3. the reading of the observer's compass corrected for deviation and local variation. 4. the direction of the Greenwich meridian to the North Pole.

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Question 18 of 181

Question: A definition of a Magnetic Track angle is:

1. The direction of the longitudinal axis of an aircraft referenced to Compass North.

2. The direction of a line referenced to the isogonic line to the Magnetic North pole. Compass North.

3. The direction of a line referenced to Magnetic North.

4. The direction of the longitudinal axis of an aircraft referenced to Magnetic North.

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Question 19 of 181

Question: The main reason for the occurrence of seasons on earth is 1. the distance between the sun and the earth.

2. the elliptical form of the orbit of the earth around the sun. 3. the length of the day as stated by the second law of Kepler.

4. the inclination of the earth axis with regard to the plane of the ecliptic.

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Question 20 of 181

Question: Which statement is true?

1. The duration of the civil twilight on 21st of March and on 23rd of September is equal at all places on Earth independent of latitude.

2. Only the declination of the sun will affect the duration of civil twilight.

3. Civil twilight at the equator lasts longer than at 60°N or 60°S because the radius of the equator is larger than the radius of the 60°parallel.

4. The declination of the sun and the latitude of the observer will affect the duration of civil twilight.

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Question 21 of 181

Question: The length of the apparent solar day varies continuously throughout a year. This is caused by: 1. the fact that the earth is closest to the sun around the 1st of January.

2. the tilt of the earth's axis and the elliptical orbit of the earth around the sun. 3. the fact that the earth is closest to the sun around the 1st of July.

4. the equation of time.

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Question 22 of 181

Question: Which definition of the equator is correct?

1. The equator is a small circle, the plane is parallel to the earth rotational axis.

2. The equator is a small circle with its plane perpendicular to the earth rotational axis. 3. The equator is a greatcircle with its plane parallel to the earth rotational axis.

4. The equator is a greatcircle with its plane perpendicular to the earth rotational axis.

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Question 23 of 181

Question: Standard time for some areas is listed in the Air Almanac as UTC +13 instead of UTC -11. The

reason for this is

1. the sense of earth rotation.

2. the setup of the sunrise/sunset tables.

3. the fact that they are keeping daylight saving time.

4. keeping the same date as the political and or economical entity to which they belong.

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Question 24 of 181

Question: The direction "magnetic north" at a position on the earth is: 1. the isogonal to the magnetic North pole.

2. the direction of the horizontal component of the of the earth's magnetic field at that position. 3. the compass North at that position corrected for variation.

4. the great circle between the position and the magnetic north pole.

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Question 25 of 181

Question: In which statement is the "Mean Sun" best described?

1. The mean sun is a fictitious sun coinciding each year with the apparent sun at the Spring Equinox and travelling along the ecliptic at uniform speed.

2. The mean sun is a fictitious sun the orbit of which coincides with that of the apparent sun, but is corrected for the mean difference in hour angle.

3. The mean sun is a fictitious sun the orbit of which coincides with that of the apparent sun, but is corrected for mean astronomical and atmospheric refraction.

4. The mean sun is a fictitious sun coinciding each year with the apparent sun at the Spring Equinox and

travelling along the celestial equator at uniform speed.

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Question 26 of 181

Question: Which statement about the orbit of the earth is correct?

1. The orbit of the Earth is a circle with the sun at a point next to its centre.

2. The orbit of the earth around the sun is an ellipse with the sun at one of the foci. 3. The orbit of the earth around the sun is a circle with the sun at its centre.

4. The orbit of the earth around the sun is an ellipse with the sun at a point halfway between the two foci.

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Question 27 of 181

Question: The reason that the solar day lasts longer than the sidereal day is that 1. the orbital speed of the earth around its axis diminishes slowly.

2. the sun has an own movement through the universe opposite to the movement of the earth due to the gravitational forces of celestial bodies.

3. the orbital track of the earth around the sun is an ellipse.

4. both the direction of rotation of the Earth around its axis and its orbital rotation around the sun are the

same.

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Question 28 of 181

Question: Position A is located on the equator at longitude 130°00E. Position B is located 100 NM from A

on a bearing of 225°(T). The coordinates of position B are:

1. 01°11'N 131°11'E 2. 01°11'N 128°49'E

3. 01°11'S 128°49'E 4. 01°11'S 131°11'E

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Question 29 of 181

Question: In order to fly from position A (10°00'N, 030°00'W) to position B (30°00'N, 050°00'W),

maintaining a constant true course, it is necessary to fly:

2. a rhumb line track 3. the great-circle route

4. the constant average drift route

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Question 30 of 181

Question: The rhumb line track between position A (45°00'N, 010°00'W) and position B (48°30'N,

015°00'W) is approximately:

1. 300 2. 345 3. 330

4. 315

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Question 31 of 181

Question: The diameter of the Earth is approximately: 1. 40 000 km

2. 12 700 km 3. 6 350 km 4. 18 500 km

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Question 32 of 181

Question: The maximum difference between geocentric and geodetic latitude occurs at about: 1. 60° North and South

2. 0° North and South (equator)

3. 45° North and South 4. 90° North and South

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Question 33 of 181

Question: If an aeroplane was to circle around the Earth following parallel 60°N at a ground speed of 480

kt. In order to circle around the Earth along the equator in the same amount of time, it should fly at a ground speed of:

1. 550 kt 2. 480 kt

3. 960 kt 4. 240 kt

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Question 34 of 181

Question: An aircraft passes position A (60°00'N 120°00'W) on route to position B (60°00'N 140°30'W).

What is the great circle track on departure from A?

1. 270° 2. 288°

3. 279° 4. 261°

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Question 35 of 181

Question: A great circle track joins position A (59°S 141°W) and B (61°S 148°W). What is the difference

between the great circle track at A and B?

1. It increases by 6° 2. It decreases by 3° 3. It increases by 3° 4. It decreases by 6°

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Question 36 of 181

Question: What is the longitude of a position 6 NM to the east of 58°42'N 094°00'W? 1. 093°54.0'W

2. 094°12.0'W 3. 093°53.1'W

4. 093°48.5'W

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Question 37 of 181

Question: An aircraft departs from position A (04°10' S 178°22'W) and flies northward following the

meridian for 2950 NM. It then flies westward along the parallel of latitude for 382 NM to position B. The coordinates of position B are?

1. 53°20'N 172°38'E 2. 45°00'N 169°22W 3. 53°20'N 169°22W

4. 45°00'N 172°38'E

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Question 38 of 181

Question: The angle between the true great-circle track and the true rhumb-line track joining the following

points: A (60° S 165° W) B (60° S 177° E), at the place of departure A, is:

1. 9° 2. 15.6° 3. 5.2°

4. 7.8°

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Question 39 of 181

Question: Given: Waypoint 1. 60°S 030°W, Waypoint 2. 60°S 020°W. What will be the approximate

latitude shown on the display unit of an inertial navigation system at longitude 025°W?

1. 060°11'S 2. 060°00'S 3. 059°49'S

4. 060°06'S

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Question 40 of 181

Question: What is the time required to travel along the parallel of latitude 60° N between meridians 010° E

and 030° W at a groundspeed of 480 kt?

1. 2 HR 30 MIN 2. 1 HR 15 MIN 3. 5 HR 00 MIN 4. 1 HR 45 MIN

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Question 41 of 181

Question: The angle between the plane of the ecliptic and the plane of equator is approximately: 1. 25.3°

3. 66.5° 4. 27.5°

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Question 42 of 181

Question: The duration of civil twilight is the time:

1. between sunset and when the centre of the sun is 6° below the celestial horizon 2. between sunset and when the centre of the sun is 12° below the celestial horizon 3. needed by the sun to move from the apparent height of 0° to the apparent height of 6° 4. agreed by the international aeronautical authorities which is 12 minutes

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Question 43 of 181

Question: On the 27th of February, at 52°S and 040°E, the sunrise is at 0243 UTC. On the same day, at

52°S and 035°W, the sunrise is at:

1. 0523 UTC 2. 2143 UTC 3. 0243 UTC

4. 0743 UTC

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Question 44 of 181

Question: An aeroplane flies from A (59°S 142°W) to B (61°S 148°W) with a TAS of 480 kt. The autopilot

is engaged and coupled with an Inertial Navigation System in which AB track is active. On route AB, the true track:

1. decreases by 6° 2. varies by 10° 3. varies by 4°

4. increases by 5°

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Question 45 of 181

Question: The rhumb-line distance between points A (60°00'N 002°30'E) and B (60°00'N 007°30'W) is: 1. 450 NM

2. 150 NM 3. 600 NM

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Question 46 of 181

Question: An aircraft is over position HO (55°30'N 060°15'W), where YYR VOR (53°30'N 060°15'W) can

be received. The magnetic variation is 31°W at HO and 28°W at YYR. What is the radial from YYR?

1. 208° 2. 332° 3. 031°

4. 028°

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Question 47 of 181

Question: The great circle distance between position A (59°34.1'N 008°08.4'E) and B (30°25.9'N

171°51.6'W) is:

1. 5 400 NM 2. 10 800 NM 3. 2 700 NM 4. 10 800 km

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Question 48 of 181

Question: Given: Position A 45°N, ?°E, Position B 45°N, 45°15'E, Distance A-B = 280 NM, B is to the

East of A. Required: longitude of position A?

1. 40°33'E

2. 38°39'E 3. 51°51'E 4. 49°57'E

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Question 49 of 181

Question: When is the magnetic compass most effective? 1. On the geographic equator

2. In the region of the magnetic North Pole.

3. About midway between the magnetic poles 4. In the region of the magnetic South Pole.

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Question 50 of 181

Question: An aircraft flies a great circle track from 56° N 070° W to 62° N 110° E. The total distance

travelled is?

1. 2040 NM 2. 1788 NM

3. 3720 NM 4. 5420 NM

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Question 51 of 181

Question: Isogrives are lines that connect positions that have: 1. O° magnetic dip

2. the same variation

3. the same horizontal magnetic field strength

4. the same grivation

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Question 52 of 181

Question: What is the meaning of the term "standard time" ? 1. It is another term for UTC

2. It is the time zone system applicable only in the USA

3. It is the time set by the legal authorities for a country or part of a country 4. It is an expression for local mean time

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Question 53 of 181

Question: What is the local mean time, position 65°25'N 123°45'W at 2200 UTC? 1. 2200

2. 0615 3. 0815

4. 1345

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Question 54 of 181

Question: An Agonic line is a line that connects: 1. points of equal magnetic horizontal field strength

2. positions that have 0° variation 3. positions that have the same variation 4. points of equal magnetic dip

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Question 55 of 181

Question: The main reason that day and night, throughout the year, have different duration, is due to the:

1. inclination of the ecliptic to the equator

2. gravitational effect of the sun and moon on the speed of rotation of the earth 3. earth's rotation

4. relative speed of the sun along the ecliptic

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Question 56 of 181

Question: The lines on the earth's surface that join points of equal magnetic variation are called: 1. isotachs

2. isogrives 3. isoclines

4. isogonals

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Question 57 of 181

Question: An aircraft departing A(N40º 00´ E080º 00´) flies a constant true track of 270º at a ground speed

of 120 kt. What are the coordinates of the position reached in 6 HR?

1. N40º 00´ E068º 10´

2. N40º 00´ E064º 20´ 3. N40º 00´ E060º 00´ 4. N40º 00´ E070º 30´

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Question 58 of 181

Question: Compass deviation is defined as the angle between: 1. the horizontal and the total intensity of the earth's magnetic field 2. True North and Magnetic North

4. Magnetic North and Compass North

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Question 59 of 181

Question: The angle between True North and Magnetic North is called: 1. drift

2. variation 3. compass error 4. deviation

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Question 60 of 181

Question: Deviation applied to magnetic heading gives: 1. magnetic track

2. magnetic course

3. compass heading 4. true heading

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Question 61 of 181

Question: A nautical mile is equivalent to: 1. 1012 m

2. 1500 m 3. 1609 m

4. 1852 m

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Question 62 of 181

Question: An aircraft flies the following rhumb line tracks and distances from position 04°00'N 030°00'W:

600 NM South, then 600 NM East, then 600 NM North, then 600 NM West. The final position of the aircraft is:

1. 04°00'N 030°02'W 2. 03°58'N 030°02'W 3. 04°00'N 030°00'W

4. 04°00'N 029°58'W

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Question 63 of 181

Question: What is the final position after the following rhumb line tracks and distances have been followed

from position 60°00'N 030°00'W? South for 3600 NM, East for 3600 NM, North for 3600 NM, West for 3600 NM. The final position of the aircraft is:

1. 59°00'N 060°00'W

2. 60°00'N 090°00'W 3. 59°00'N 090°00'W 4. 60°00'N 030°00'E

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Question 64 of 181

Question: How many small circles can be drawn between any two points on a sphere? 1. None.

2. One. 3. Two.

4. An unlimited number.

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Question 65 of 181

Question: An island is observed to be 30° to the right of the nose of the aircraft. The aircraft heading is

290°(M), variation 10°(E). The bearing °(T) from the aircraft to the island is:

1. 250

2. 330 3. 310 4. 270

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Question 66 of 181

Question: An aircraft was over 'Q' at 1320 hours flying direct to 'R'. Given: Distance 'Q' to 'R' 3016 NM

True airspeed 480 kt Mean wind component 'out' -90 kt Mean wind component 'back' +75 kt. Safe endurance 10:00 HR. The distance from 'Q' to the Point of Safe Return (PSR) 'Q' is:

2. 2290 NM 3. 2370 NM 4. 1310 NM

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Question 67 of 181

Question: An aircraft is following the 45°N parallel of latitude. The track followed is a: 1. constant-drift track

2. rhumb line 3. great circle

4. constant-heading track

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Question 68 of 181

Question: A great circle on the Earth running from the North Pole to the South Pole is called: 1. a longitude.

2. a meridian.

3. a difference of longitude. 4. a parallel of latitude.

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Question 69 of 181

Question: If you are flying along a parallel of latitude, you are flying: 1. on a track which is constantly changing direction.

2. on a north - south track. 3. a great circle track.

4. a rhumb line track.

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Question 70 of 181

Question: If the Compass Heading is 265°, variation is 33° W and deviation is 3°E, what is the True

Heading?

1. 229° 2. 295°

3. 235° 4. 301°

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Question 71 of 181

Question: What is the length of one degree of longitude at latitude 60° South? 1. 60 NM

2. 30 NM 3. 90 NM 4. 52 NM

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Question 72 of 181

Question: The north and south magnetic poles are the only positions on the earth's surface where:

1. a freely suspended compass needle would stand vertical 2. the value of magnetic variation equals 90°

3. a freely suspended compass needle will stand horizontal

4. a position where the horizontal component of the earth's magnetic field is a maximum

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Question 73 of 181

Question: The initial great circle track from A to B is 080° and the rhumb line track is 083°. What is the

initial great circle track from B to A and in which Hemisphere are the two positions located?

1. 266° and in the southern hemisphere. 2. 260° and in the southern hemisphere. 3. 260° and in the northern hemisphere.

4. 266° and in the northern hemisphere.

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Question 74 of 181

Question: When the time is 2000 UTC, it is: 1. 1200 LMT at 60° East.

2. 1400 LMT at 90° West.

4. 2400 LMT at 120° West.

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Question 75 of 181

Question: The distance along a meridian between 63°55'N and 13°47'S is: 1. 7702 NM

2. 3008 NM

3. 4662 NM 4. 5008 NM

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Question 76 of 181

Question: In which occasions does the rhumb line track and the great circle track coincide on the surface of

the Earth?

1. On East - West tracks in the northern hemisphere north of the magnetic equator. 2. On high latitude tracks directly East - West.

3. On East - West tracks in polar areas.

4. On tracks directly North - South and on East - West tracks along the Equator.

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Question 77 of 181

Question: In the Northern Hemisphere the rhumb line track from position A to B is 230°, the covergency is

6° and the difference in longitude is 10°. What is the initial rhumb line track from B to A?

1. 050° 2. 056° 3. 047° 4. 053°

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Question 78 of 181

Question: How many degrees has the mean sun moved along the celestial equator in 8 hours and 8 minutes?

1. 122° 2. 56° 3. 18° 4. 148°

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Question 79 of 181

Question: The great circle bearing of position B from position A in the Northern Hemisphere is 040°. If the

Conversion Angle is 4°, what is the great circle bearing of A from B?

1. 228° 2. 212° 3. 224° 4. 220°

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Question 80 of 181

Question: How does the convergency of any two meridians on the Earth change with varying latitude? 1. It is of constant value and does not change with latitude.

2. It changes as sine of latitude.

3. It increases with decrease of latitude. 4. It changes as cosine of latitude.

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Question 81 of 181

Question: When flying on a westerly great circle track in the Southern Hemisphere you will: 1. always have the rhumb line track between the departure point and the destination to the left of your

great circle track.

2. experience an increase in the value of true track. 3. experience a decrease in the value of true track. 4. fly a spiral and finally end up at the south pole.

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Question 82 of 181

Question: Given: True Track 245° Drift 5° right Variation 3° E Compass Hdg 242° Calculate the deviation.

1. 5° W 2. 1° E 3. 11° E 4. 5° E

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Number: 12933

Question: When the time is 1400 LMT at 90° West, it is: 1. 0600 LMT at the Prime meridian.

2. 1400 LMT at 90° East. 3. 1000 LMT at 60° West.

4. 1200 LMT at 120° West.

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Question 84 of 181

Question: Which of the following alternatives is correct when you cross the international date line? 1. If you are crossing from westerly longitude to easterly longitude the date will remain the same.

2. The date will increase if you are crossing on a westerly heading. 3. The date will always be the same.

4. The date will increase if you are crossing on a easterly heading.

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Question 85 of 181

Question: Which is the highest latitude listed below at which the sun will rise above the horizon and set

every day?

1. 66° 2. 68°

3. 62° 4. 72°

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Question 86 of 181

Question: Given: True Track 245° Drift 5° right Variation 3° E Compass Hdg 242° Calculate the Magnetic

Heading.

1. 253° 2. 247°

3. 237° 4. 243°

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Question 87 of 181

Question: Which figure in the Appendix represents the geocentric latitude of position P, which is situated

1. figure A 2. figure D

3. figure B 4. figure C

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Question 88 of 181

Question: Which figure in the Appendix represents the geographic latitude of position P, which is situated

above the surface of the ellipsoid?

1. figure B

2. figure A 3. figure D 4. figure C

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Question 89 of 181

Question: An aircraft is in the position (86ºN, 020ºE). When following a rhumb line track of 085º(T) it will: 1. fly to the north via an arbitrary line.

2. follow a line which lies at first to the North of the parallel of 86ºN but after having passed a DL of 180º to the South of it.

3. follow a small circle which lies to the North of the parallel of 86ºN.

4. fly via a spiral to the North Pole.

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Question 90 of 181

Question: Which statement about the duration of daylight is true?

1. In summer the length of the period of daylight decreases with increasing latitude.

2. On September 10th the duration of daylight is longer on the Southern Hemisphere than on the Northern Hemisphere.

3. Close to the solstices the influence of latitude on the duration of daylight is at its smallest.

4. Close to the equinoxes the influence of latitude on the duration of daylight is at its smallest.

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Question 91 of 181

Question: With an increase in magnetic latitude there will be a decrease in the 1. total magnetic force of the Earth's magnetic field.

3. directive force.

4. vertical component of the Earth's magnetic field.

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Question 92 of 181

Question: On the earth's ellipsoid one degree of latitude near the equator is 1. more than 60 NM but less than 61 NM

2. less than 60 NM 3. more than 60 NM 4. 60 NM

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Question 93 of 181

Question: Two places on the parallel of 47ºS lie 757.8 km apart. Calculate the difference in longitude. 1. 4º51'

2. 9º19'

3. 10º00' 4. 4º39'

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Question 94 of 181

Question: In a sunrise/sunset table given for the 28th of June at a certain latitude, sunrise is gven as 0239

and sunset is given as 2127. What is the latitude?

1. 80°N 2. 55°S 3. 00° N/S

4. 60°N

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Question 95 of 181

Question: A VOR is situated at position (74ºN, 094ºW); local variation is 50ºW. A Polar Stereographic

chart supplied with a Greenwich grid is used for navigation. To proceed along (magnetic) radial 238 inbound an aircraft has to follow a Grid Track of:

2. 193º 3. 013º 4. 283º

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Question 96 of 181

Question: Thule VOR is located at (76°32'N, 68°15'W). A Polar Stereographic chart with the grid aligned

with the Greenwich meridian is to be used. The local variation is 75°W. Which grid track must be maintained to track radial 210(M) inbound?

1. 323°(G) 2. 203°(G) 3. 285°(G)

4. 023°(G)

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Question 97 of 181

Question: A route is drawn from (75°00'N, 060°00'E) to (75°00'N, 030°00'W) on a Polar Stereographic

chart with the grid aligned with the Greenwich meridian. The Grid Track (GT) is:

1. 255º(G) 2. 285º(G) 3. 225º(G) 4. 315º(G)

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Question 98 of 181

Question: A route is flown from (80°S, 100°W) to (80°S, 140°E). At 160°W the Grid Track (GT) and True

Track (TT) on a Polar Stereographic chart with a grid orientated on the 180º meridian are respectively:

1. 290°(G) and 270°(T) 2. 270°(G) and 110°(T) 3. 110°(G) and 270°(T) 4. 270°(G) and 290°(T)

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Question 99 of 181

Question: Route A - B is drawn on a Southern Polar Stereographic chart whose grid is aligned with the

Greenwich meridian. The true track of the straight line at A is 120°. When passing the meridian of 100°E the true track is 090°. The grid track of this route on the chart is:

1. 030º(G) 2. 120º(G)

3. 190º(G) 4. 350º(G)

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Question 100 of 181

Question: Which definition describes best the notion "Poles"?

1. The poles are the points on the surface of the earth where gravity acts under an angle of exactly 90º. 2. The Poles are the points on the surface of the earth which have the same distance to all points of the

ecliptic.

3. The Poles are the points of intersection between the earth's axis and the surface of the earth.

4. The Poles are the points of intersection between the surface of the earth and the extended line joining the star Polaris with the centre of the earth.

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Question 101 of 181

Question: The outer marker of an ILS with a 3° glide slope is located 4.6 NM from the threshold. Assuming

a glide slope height of 50 FT above the threshold, the approximate height of an aircraft passing the outer marker is:

1. 1450 FT 2. 1350 FT 3. 1300 FT 4. 1400 FT

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Question 102 of 181

Question: Use the Air Almanac Tables. The UTC of sunrise on 6 December at WINNIPEG (Canada)

(49°50'N 097°30'W) is:

1. 2230

2. 1413 3. 0113 4. 0930

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Question 103 of 181

Question: Use the Air Almanac Tables. When it is 1000 Standard Time in Kuwait, the Standard Time in

Algeria is:

2. 0800 3. 1200 4. 1300

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Question 104 of 181

Question: The value of magnetic variation: 1. must be 0° at the magnetic equator

2. has a maximum of 180° 3. cannot exceed 90°

4. varies between a maximum of 45° East and 45° West

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Question 105 of 181

Question: The Great Circle bearing from A (70°S 030°W) to B (70°S 060°E) is approximately: 1. 312°(T)

2. 132°(T) 3. 090°(T) 4. 048°(T)

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Question 106 of 181

Question: The horizontal component of the earth's magnetic field: 1. weakens with increasing distance from the nearer magnetic pole 2. is approximately the same at all magnetic latitudes less than 60°

3. is stronger closer to the magnetic equator

4. weakens with increasing distance from the magnetic poles

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Question 107 of 181

Question: Use the Air Almanac Tables. When it is 0600 Standard Time in Queensland (Australia) the

Standard Time in Hawaii (USA) is:

1. 0200 2. 1200 3. 0600

4. 1000

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Question 108 of 181

Question: Given: true track is 348°, drift 17° left, variation 32° W, deviation 4°E. What is the compass

heading?

1. 033° 2. 337° 3. 359° 4. 007°

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Question 109 of 181

Question: The circumference of the earth is approximately:

1. 21600 NM 2. 10800 NM 3. 43200 NM 4. 5400 NM

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Question 110 of 181

Question: Isogonic lines connect positions that have: 1. the same angle of magnetic dip

2. 0° variation 3. the same elevation

4. the same variation

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Question 111 of 181

Question: The Local Mean Time at longitude 095°20'W, at 0000 UTC, is: 1. 0621:20 same day

2. 1738:40 previous day 3. 1738:40 same day 4. 0621:20 previous day

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Question 112 of 181

Question: 5 HR 20 MIN 20 SEC corresponds to a longitude difference of: 1. 78°45'

2. 75°00'

3. 80°05' 4. 81°10'

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Question 113 of 181

Question: What is the value of the magnetic dip at the magnetic south pole ? 1. 0°

2. 90° 3. 60° 4. 45°

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Question 114 of 181

Question: A Rhumb line is:

1. any straight line on a Lambert projection

2. a line on the surface of the earth cutting all meridians at the same angle 3. a line convex to the nearest pole on a Mercator projection

4. the shortest distance between two points on a Polyconic projection

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Question 115 of 181

Question: In which two months of the year is the difference between the transit of the Apparent Sun and

Mean Sun across the Greenwich Meridian the greatest?

1. February and November 2. June and December 3. April and August 4. March and September

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Number: 4296

Question: What is the highest latitude listed below at which the sun will reach an altitude of 90° above the

horizon at some time during the year?

1. 0° 2. 45°

3. 23.5° 4. 66°

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Question 117 of 181

Question: Assuming mid-latitudes (40° to 50°N/S). At which time of year is the relationship between the

length of day and night, as well as the rate of change of declination of the sun, changing at the greatest rate?

1. Winter solstice and autumn equinox

2. Spring equinox and autumn equinox 3. summer solstice and winter solstice 4. Summer solstice and spring equinox

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Question 118 of 181

Question: At what approximate date is the earth closest to the sun (perihelion)? 1. End of June

2. Beginning of July

3. Beginning of January 4. End of March

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Question 119 of 181

Question: At what approximate date is the earth furthest from the sun (aphelion)? 1. End of September

2. Beginning of July 3. End of December 4. Beginning of January

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Question 120 of 181

Question: A flight is to be made from 'A' 49°S 180°E/W to 'B' 58°S, 180°E/W. The distance in kilometres

1. 540 2. 804 3. 1222

4. 1000

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Question 121 of 181

Question: An aircraft at position 60°N 005°W tracks 090°(T) for 315 km. On completion of the flight the

longitude will be:

1. 000°15'E 2. 002°10'W

3. 000°40'E 4. 005°15'E

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Question 122 of 181

Question: The 'departure' between positions 60°N 160°E and 60°N 'x' is 900 NM. What is the longitude of

'x'?

1. 175°E 2. 140°W 3. 145°E

4. 170°W

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Question 123 of 181

Question: An aircraft at latitude 02°20'N tracks 180°(T) for 685 km. On completion of the flight the latitude

will be:

1. 09°05'S 2. 04°30'S

3. 03°50'S 4. 04°10'S

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Question 124 of 181

Question: An aircraft at latitude 10° South flies north at a GS of 890 km/HR. What will its latitude be after

1.5 HR?

2. 02°00'N 3. 03°50'N 4. 22°00'N

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Question 125 of 181

Question: An aircraft at latitude 10°North flies south at a groundspeed of 445 km/HR. What will be its

latitude after 3 HR?

1. 03°50'S 2. 12°15'S 3. 22°00'S

4. 02°00'S

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Question 126 of 181

Question: The circumference of the parallel of latitude at 60°N is approximately: 1. 34 641 NM

2. 10 800 NM 3. 18 706 NM 4. 20 000 NM

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Question 127 of 181

Question: Seasons are due to the: 1. Earth's rotation on its polar axis 2. Earth's elliptical orbit around the Sun 3. variable distance between Earth and Sun

4. inclination of the polar axis with the ecliptic plane

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Question 128 of 181

Question: Given: Position 'A' N60 W020, Position 'B' N60 W021, Position 'C' N59 W020. What are,

respectively, the distances from A to B and from A to C?

1. 60 NM and 30 NM 2. 60 NM and 52 NM 3. 52 NM and 60 NM

4. 30 NM and 60 NM

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Question 129 of 181

Question: A negative (westerly) magnetic variation signifies that: 1. Compass North is East of Magnetic North

2. True North is East of Magnetic North 3. Compass North is West of Magnetic North 4. True North is West of Magnetic North

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Question 130 of 181

Question: Given: The coordinates of the heliport at Issy les Moulineaux are N48°50' E002°16.5'. What are

the coordinates of the position directly on the opposite side of the earth?

1. S41°10' E177°43.5' 2. S41°10' W177°43.5' 3. S48°50' E177°43.5'

4. S48°50' W177°43.5'

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Question 131 of 181

Question: Isogonals are lines of equal: 1. wind velocity.

2. pressure.

3. compass deviation.

4. magnetic variation.

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Question 132 of 181

Question: Given : A is N55° 000°, B is N54° E010°, The average true course of the great circle is 100°. The

true course of the rhumbline at point A is:

1. 100° 2. 107° 3. 096°

4. 104°

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Question 133 of 181

Question: Given: Position 'A' is N00° E100°, Position 'B' is 240°(T), 200 NM from 'A'. What is the position

of 'B'?

1. S01°40' E101°40' 2. N01°40' E097°07' 3. N01°40' E101°40'

4. S01°40' E097°07'

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Question 134 of 181

Question: At the magnetic equator, when accelerating after take off on heading West, a direct reading pivot

suspended compass:

1. overreads the heading

2. indicates the correct heading 3. indicates a turn to the south 4. underreads the heading

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Question 135 of 181

Question: The angle between Magnetic North and Compass North is called: 1. magnetic variation

2. alignment error 3. compass error

4. compass deviation

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Question 136 of 181

Question: The north and south magnetic poles are the only positions on the earth's surface where: 1. a position where the horizontal component of the earth's magnetic field is a maximum

2. the value of magnetic variation equals 90°

3. a freely suspended compass needle would stand vertical 4. a freely suspended compass needle will stand horizontal

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Question 137 of 181

Question: A nautical mile is:

1. 1852 metres 2. 1500metres 3. 1609 metres 4. 1012 metres

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Question 138 of 181

Question: Morning Civil twilight begins when:

1. the centre of the sun is 12° below the celestial horizon 2. the sun's upper edge is tangential to the celestial horizon

3. the centre of the sun is 6° below the celestial horizon 4. the centre of the sun is 18° below the celestial horizon

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Question 139 of 181

Question: Given: value for the flattening of the Earth is 1/298. Earth's semi-major axis, as measured at the

equator, equals 6378.4 km. What is the semi-minor axis (km) of the earth at the axis of the poles?

1. 6 378.4 2. 6 399.9 3. 6 367.0

4. 6 357.0

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Question 140 of 181

Question: Given: Variation is 6°W. Isogonic lines Jan 2002. Average annual increase 10'. Calculate:

Variation in 2005.

1. 6.3°W

2. 6.5°W 3. 5.5°W 4. 5.5°E

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Number: 14256

Question: Position A = (56°00.0''S, 163°57.2''E) Position B = (56°00.0''S, 171°47.4''W) For the route from

A to B the

1. rhumb line distance is 1206.6 NM.

2. great circle direction at B is 080.7° 3. great circle direction at B is 100.1°. 4. rhumb line distance is 1455.4 NM.

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Question 142 of 181

Question: The first law of Kepler states:

1. Planets move around the sun in a circular orbit.

2. The angular speed of the planet in the orbit around the sun is constant.

3. Planets move in elliptic orbits with the sun in one of the foci. 4. All planets orbit around the sun at the same speed.

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Question 143 of 181

Question: What is meant by "Aphelion"?

1. The point of the sun''s orbit closest to the earth.

2. The point of the earth''s orbit furthest away from the sun. 3. The point of the sun''s orbit furthest away from the earth. 4. The point of the earth''s orbit closest to the sun.

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Question 144 of 181

Question: Which statement about meridians is correct? 1. The plane of a meridian is parallel to the equator. 2. All meridians are parallel to the Meridian of Greenwich. 3. A meridian is a complete great circle of 360°.

4. A meridian and its anti-meridian form a complete great circle.

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Question 145 of 181

Question: Keplar's second law states:

2. each planet revolves so that the radius vector, sun to earth, sweeps out equal area in equal intervals of

time

3. the area swept out by the radius vector of each planet, sun to earth, per hour, increasing with increasing length of the radius vector

4. the length of the radius vector, sun to earth, is proportional to the square root of its angular speed

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Question 146 of 181

Question: The local hour angle of the mean sun at 1200 LMT is: 1. 090

2. 270

3. 000 4. 180

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Question 147 of 181

Question: Location A is at 50ºN 030ºW and location B is at 50ºS 030ºW. On 27th November it is noted

that:

1. Sunrise will be earlier at A than it is at B and sunset will be later at A than it is at B.

2. Sunrise will be later at A than it is at B and sunset will be earlier at A than it is at B. 3. Sunrise will be earlier at A than it is at B and sunset will be earlier at A than it is at B 4. Sunrise and sunset will be at the same time at A and B.

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Question 148 of 181

Question: A rhumb line from a position 86°N 30°W has an initial track of 085°T is it:

1. a spiral to the North pole 2. a small circle north of 86°N

3. a random northerly track to the pole

4. initially North 86°N and 180° later South of 86°N

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Question 149 of 181

Question: When crossing the International Date Line, which of the following statements can be considered

correct?

1. when crossing from a west to east longitude the date will stay the same 2. the date will increase crossing on an easterly heading

3. the date will increase crossing on a westerly heading 4. there will be no change to the date

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Question 150 of 181

Question: The direction of Magnetic North at a certain position coincides with the direction of: 1. the great circle to the magnetic North pole.

2. the isoclinic line to the Magnetic North pole. 3. the isogonic line to the Magnetic North pole.

4. the horizontal component of the Earth''s magnetic field.

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Question 151 of 181

Question: Which statement is true?

1. Civil twilight at the equator lasts longer than at 60°N or 60°S because the radius of the equator is larger than the radius of the 60°parallel.

2. The declination of the sun and the latitude of the observer will affect the duration of civil twilight.

3. Only the declination of the sun will affect the duration of civil twilight.

4. The duration of the civil twilight on 21st of March and on 23rd of September is equal at all places on Earth independent of latitude.

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Question 152 of 181

Question: The reason that the solar day lasts longer than the sidereal day is that

1. the sun has an own movement through the universe opposite to the movement of the earth due to the gravitational forces of celestial bodies.

2. the orbital track of the earth around the sun is an ellipse. 3. the orbital speed of the earth around its axis diminishes slowly.

4. both the direction of rotation of the Earth around its axis and its orbital rotation around the sun are the

same.

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Question 153 of 181

Question: Which statement about ST is true?

2. Standard time is determined by the government of the appropriate state and does not necessarily follow

the borders of 15° wide longitude zones. 3. The standard time at 125° W is UTC - 8h20m

4. Standard time is the time that is determined by division of the longitude by 15 and rounding off the answer to the nearest integer.

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Question 154 of 181

Question: An aircraft departs from Schiphol airport (where ST = UT+1) and flies to Santa Cruz in Bolivia

(South America) via Miami in Florida. The departure time (off blocks) is 07:45 ST at the 10th of November, taxi time before take off at Schiphol is 25 minutes. The flight time to Miami over the Atlantic Ocean is 09h20m. The total taxi time in Miami to and from the gate is 25 minutes. The time spend at the gate is 02h40m. From Miami to Santa Cruz the airborne time is 06h30m. Calculate the time and date of touch down in Santa Cruz in ST Bolivia if the difference between ST and UTC is 5 hours. (Note: use the information given, not ST tables)

1. 09:05 11th Nov. 2. 21:05 10th Nov. 3. 22:05 10th Nov. 4. 07:05 11th Nov.

Question 155 of 181

Question: Given: Compass Heading = 233° True Track = 256° Drift Angle = 10°R Deviation = -3° What is

the variation?

1. 16°E 2. 20°W 3. 10°W 4. 36°E

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Question 156 of 181

Question: Route A - B is drawn on a Polar Stereographic chart with the grid aligned with the Greenwich

meridian. The true track of the straight line at A (75°S, 010°W) is 080°. What is the Grid Track when passing the meridian of 050°E?

1. 090º(G) 2. 330º(G)

3. 070º(G) 4. 110º(G)

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Number: 15248

Question: Route A - B is drawn on a Polar Stereographic chart with the grid aligned with the Greenwich

meridian. The True Track of the straight line at A (75°N, 010°W) is 080°. What is the Grid Track when passing the meridian 050°E?

1. 150º(G)

2. 090º(G) 3. 070º(G) 4. 110º(G)

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Question 158 of 181

Question: Position A is (31º00'S, 176º17'W) Rhumb line track (T) from A to B is 270º. Initial great circle

track (T) from A to B is 266.2º. The Approximate position of B is:

1. (31º00'S, 173º24'E) 2. (31º00'S, 161º32'W)

3. (31º00'S, 168º58'E) 4. (31º00'S, 173º24'W)

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Question 159 of 181

Question: A great circle intersects the equator in 030°W with a great circle direction of 035°(T). An aircraft

tracking the great circle will reach the maximum Northern/Southern latitude in position

1. (35°N, 120°W) 2. (35°S, 120°W) 3. (55°S, 060°E)

4. (55°N, 060°E)

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Question 160 of 181

Question: At 0000 Local Mean Time of an observer:

1. the apparent sun is in transit with the observer's anti-meridian. 2. the apparent sun is in transit with the observer's meridian.

3. the mean sun is in transit with the observer's anti-meridian. 4. the mean sun is in transit with the observer's meridian.

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Question 161 of 181

Question: Route A - B is drawn on a Polar Stereographic chart with the grid aligned with the Greenwich

meridian. The true track of the straight line at A is 060°. When passing the meridian 100°E, the true track is 090°. The grid track of this route on the chart is

1. 060º(G) 2. 010º(G) 3. 130º(G)

4. 350º(G)

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Question 162 of 181

Question: Consider the positions (00ºN/S, 000ºE/W) and (00ºN/S, 180ºE/W) on the ellipsoid. Which

statement about the distances between these positions is correct?

1. The route via the South pole is shorter than the route via the North Pole.

2. The route via the North Pole is shorter than the route along the equator. 3. The route via the equator is shorter than the route via the South Pole. 4. The route via either pole and the route via the equator are of equal length.

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Question 163 of 181

Question: Kepler's second law states that

1. the area swept out by the radius vector sun-earth per hour increases with increasing length of the radius vector.

2. the radius vector sun-earth moves at constant angular speed.

3. the radius vector sun-earth sweeps out equal areas in equal time.

4. the length of the radius vector sun-earth is directly proportional to the square root of its angular speed.

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Question 164 of 181

Question: Which statement is correct?

1. The earth is one of the planets which are all moving in elliptical orbit around the sun. 2. The planets move around the sun like all stars of the Solar System.

3. The sun moves in an elliptical orbit around the Earth. 4. The Solar System consists of the sun, planets and stars.

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Question 165 of 181

Question: The SR/SS table for the 23rd of February at latitude 40ºN gives: SR = 06:44 SS = 17:44 At 12:00

Central European Time (UTC+1) at 40ºN:

1. the sun sets at 86ºE. 2. the sun sets at 116ºE. 3. the sun rises at 79ºW.

4. the sun rises at 64ºW.

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Question 166 of 181

Question: Near the magnetic pole

1. the vertical component of the earth's magnetic field is too small to permit the use of a magnetic compass.

2. the angle of dip is maximal whereby a freely suspended compass needle will be almost fully horizontally aligned.

3. the angle of dip is minimal whereby a freely suspended compass needle will be almost fully vertically aligned.

4. the horizontal component of the earth's magnetic field is too small to permit the use of a magnetic

compass.

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Question 167 of 181

Question: An aircraft follows a great circle in the Northern Hemisphere. At a certain moment the aircraft is

in the position on the great circle where the great circle direction is 270°(T). Continuing on the great circle the

1. track angle will increase and the latitude will increase. 2. track angle will decrease and the latitude will increase.

3. track angle will decrease and the latitude will decrease. 4. track angle will increase and the latitude will decrease.

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Question 168 of 181

Question: Given: A (56°N , 145°E) B (57°N , 165°W) What is the difference in longitude between A and

B?

1. 001° 2. 020°

3. 050° 4. 130°

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Question 169 of 181

Question: Mu'a, Tonga Islands, is situated at (21°11'S, 175°07'W) In the Air Almanac the standard time of

Tonga Islands is listed as UTC +13. For August 21st the sunrise table in the Air Almanac shows: 20°S: 06:18 30°S: 06:28 What is the Standard Time of sunrise at Mu'a?

1. 07:39 on August 22nd. 2. 06:59 on August 21st. 3. 07:39 on August 21st.

4. 06:59 on August 22nd.

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Question 170 of 181

Question: A route is flown from (80°S, 100°W) to (80°S, 140°E). At 180°E/W the Grid Track (GT) and

True Track (TT) on a Polar Stereographic chart, whose grid is aligned with the Greenwich meridian, are respectively:

1. 250°(G) and 070°(T) 2. 290°(G) and 110°(T)

3. 110°(G) and 290°(T) 4. 070°(G) and 250°(T)

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Question 171 of 181

Question: A route is flown from (85°S, 100°E) to (85°S, 140°W). At 180°E/W the Grid Track (GT) and

True Track (TT) on a Polar Stereographic chart, whose grid is aligned with the Greenwich meridian, are respectively:

1. 250°(G) and 070°(T) 2. 070°(G) and 250°(T) 3. 110°(G) and 290°(T) 4. 290°(G) and 110°(T)

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Question 172 of 181

Question: Position "Elephant Point" is situated at (58°00'N, 135°30'W). Standard time for this location is

listed in the Air Almanac as UTC -8. If sunset occurs at 00:57 UTC on 21st January, what is the time of Sunset in LMT?

1. 16:57 on January 20th. 2. 09:59 on January 21st.

3. 15:55 on January 20th. 4. 08:57 on January 21st.

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Question 173 of 181

Question: What is the duration of morning Civil Twilight at (66º48'N, 095º26'W) on 27th of January? 1. 01h 02m

2. 01h 13m 3. 08h 14m 4. 09h 27m

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Question 174 of 181

Question: The great circle track measured at A (45 00'N 010 00'W) from A to B (45 00'N 019 00'W) is

approximately:

1. 090° 2. 270° 3. 093°

4. 273°

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Question 175 of 181

Question: A route is flown from (85°S, 100°E) to (85°S, 140°W). At 160°E the Grid Track (GT) and True

track (TT) on a Polar Stereographic chart with a grid orientated on the 180º meridian are respectively:

1. 090°(G) and 250°(T) 2. 090°(G) and 070°(T)

3. 070°(G) and 090°(T) 4. 250°(G) and 090°(T)

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Question 176 of 181

Question: The GMT of Morning Civil Twilight at (66º48'N, 095º26'W) on 27th of January is? 1. 0927 GMT

2. 0814 GMT 3. 1541 GMT

4. 1436 GMT

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Question 177 of 181

Question: The GMT of Sunrise at (66º48'N, 095º26'W) on 27th of January is? 1. 0927 GMT

2. 0814 GMT 3. 1541 GMT

4. 1549 GMT

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Question 178 of 181

Question: On an oblate spheroid representing the earth's shape

1. 1 minute of arc along the meridian at low latitudes measures a greater distance than 1 minute of arc along the meridian at high latitudes.

2. 1 minute of arc along the equator measures the same distance as 1 minute of arc along the meridian at a latitude of 45ºN/S.

3. 1 minute of arc along the meridian at 0ºN/S measures the same distance as 1 minute of arc at 90ºN/S. 4. 1 minute of arc along the equator measures a greater distance than 1 minute of arc along the meridian at

a latitude of 45ºN/S.

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Question 179 of 181

Question: Which of the following variables affect deviation? 1. magnetic latitude 2. aircraft heading 3.

aircraft altitude 4. aircraft electronic equipment

1. 1, 2 and 3.

2. 1, 2 and 4 3. 3 and 4. 4. 2 and 3.

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Question 180 of 181

Question: "A" latitude is 00°N/S "B" is located at 33°N, 101°E. True track (great circle) from "A" to "B", at

"B", is 090°. The initial true track of the great circle at "A" is:

2. 057° 3. 237° 4. 123°

Question 181 of 181

Question: The horizontal component of the earth's magnetic field:

1. Is approximately the same at magnetic latitudes 50°N and 50°S. 2. Weakens with increasing distance from the nearer magnetic pole. 3. Weakens with increasing distance from the magnetic poles. 4. Is approximately the same at all magnetic latitudes lass than 60°.

02-MANYETIZM AND COMPASSES

Question 1 of 28

Question: The annunciator of a remote indicating compass system is used when: 1. setting the 'heading' pointer

2. setting local magnetic variation 3. compensating for deviation

4. synchronising the magnetic and gyro compass elements

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Question 2 of 28

Question: An aircraft in the northern hemisphere is making an accurate rate one turn to the right. If the

initial heading was 135°, after 30 seconds the direct reading magnetic compass should read:

1. less than 225°

2. more or less than 225° depending on the pendulous suspension used 3. 225°

4. more than 225°

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Question 3 of 28

Question: When accelerating on a westerly heading in the northern hemisphere, the compass card of a direct

reading magnetic compass will turn:

1. anti-clockwise giving an apparent turn towards the south 2. clockwise giving an apparent turn towards the south

3. anti-clockwise giving an apparent turn towards the north 4. clockwise giving an apparent turn towards the north

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Question 4 of 28

Question: When an aircraft on a westerly heading on the northern hemisphere accelerates, the effect of the

acceleration error causes the magnetic compass to:

1. indicate a turn towards the north

2. to turn faster than the actual turning rate of the aircraft 3. lag behind the turning rate of the aircraft

4. indicate a turn towards the south

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Question 5 of 28

Question: In a remote indicating compass system the amount of deviation caused by aircraft magnetism and

electrical circuits may be minimised by:

1. using a vertically mounted gyroscope instead of a horizontally mounted one. 2. mounting the flux valve in the cockpit.

3. mounting the detector unit (flux valve) in the wingtip. 4. positioning the gyroscope in the centre of the aircraft.

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Question 6 of 28

Question: When decelerating on a westerly heading in the Northern hemisphere, the compass card of a

direct reading magnetic compass will turn:

1. clockwise giving an apparent turn towards the north

2. clockwise giving an apparent turn toward the south 3. anti-clockwise giving an apparent turn towards the north 4. anti-clockwise giving an apparent turn towards the south

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Question 7 of 28

Question: A line drawn on a chart which joins all points where the value of magnetic variation is zero is

called an:

1. agonic line 2. aclinic line 3. isotach 4. isogonal

Question 8 of 28

Question: An aircraft in the northern hemisphere makes an accurate rate one turn to the right/starboard. If

the initial heading was 330°, after 30 seconds of the turn the direct reading magnetic compass should read:

1. less than 060° 2. more than 060°

3. more or less than 060° depending on the pendulous suspension used 4. 060°

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Question 9 of 28

Question: When turning right from 330°(C) to 040°(C) in the northern hemisphere, the reading of a direct

reading magnetic compass will:

1. under-indicate the turn and liquid swirl will increase the effect 2. over-indicate the turn and liquid swirl will increase the effect 3. over-indicate the turn and liquid swirl will decrease the effect 4. under-indicate the turn and liquid swirl will decrease the effect

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Question 10 of 28

Question: When accelerating on an easterly heading in the Northern hemisphere, the compass card of a

direct reading magnetic compass will turn:

1. anti-clockwise giving an apparent turn toward the north

2. clockwise giving an apparent turn toward the north 3. anti-clockwise giving an apparent turn toward the south 4. clockwise giving an apparent turn toward the south

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Question 11 of 28

Question: A direct reading compass should be swung when: 1. there is a large change in magnetic longitude

2. the aircraft is stored for a long period and is frequently moved 3. the aircraft has made more than a stated number of landings

4. there is a large, and permanent, change in magnetic latitude

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Question 12 of 28