GNAV 01

[GNAV-PT01 #1] 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? A) 0° B) 23.5° C) 66° D) 45°

[GNAV-PT01 #2] The main reason for the occurrence of seasons on earth is A) the elliptical form of the orbit of the earth around the sun. B) the distance between the sun and the earth. C) the length of the day as stated by the second law of Kepler. D) the inclination of the earth axis with regard to the plane of the ecliptic.

[GNAV-PT01 #3] An aircraft is following the 45°N parallel of latitude. The track followed is a: A) rhumb line B) constant-drift track C) great circle D) constant-heading track

[GNAV-PT01 #4] The maximum difference between geocentric and geodetic latitude occurs at about: A) 0° North and South (equator) B) 45° North and South C) 90° North and South D) 60° North and South

[GNAV-PT01 #5] What is the length of one degree of longitude at latitude 60° South? A) 30 NM B) 90 NM C) 52 NM D) 60 NM

[GNAV-PT01 #6] What is the meaning of the term "standard time" ? A) It is another term for UTC B) It is an expression for local mean time C) It is the time zone system applicable only in the USA D) It is the time set by the legal authorities for a country or part of a country

[GNAV-PT01 #7] 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: A) negligible small because A and B are located symmetrically to the equator. B) some hours and the sun rises earlier in A than in B. C) some hours and the sun rises earlier in B than in A. D) negligible small because A and B are located at the same meridian.

[GNAV-PT01 #8] The angle between True North and Magnetic North is called: A) variation B) drift C) deviation D) compass error

[GNAV-PT01 #9] Deviation applied to magnetic heading gives: A) compass heading B) true heading C) magnetic course D) magnetic track

[GNAV-PT01 #10] The maximum difference in distance when proceeding along the great circle between two positions, instead of the rhumb line, will occur A) on North-South tracks at low latitudes. B) on East-West tracks at high latitudes. C) on North-South tracks at high latitudes. D) on East-West tracks at low latitudes.

[GNAV-PT01 #11] The nominal scale of a Lambert conformal conic chart is the: A) scale at the equator B) scale at the standard parallels C) mean scale between the parallels of the secant cone D) mean scale between pole and equator

[GNAV-PT01 #12] What is the constant of the cone for a Lambert conic projection whose standard parallels are at 50°N and 70°N?

[GNAV-PT01 #13] Given: Chart scale is 1: 1 850 000. The chart distance between two points is 4 centimetres. Earth distance is approximately: A) 100 NM B) 74 NM C) 4 NM D) 40 NM

[GNAV-PT01 #14] On a Mercator chart, at latitude 60°N, the distance measured between W002° and E008° is 20 cm. The scale of this chart at latitude 60°N is approximately: A) 1: 278 000 B) 1: 5 560 000 C) 1: 2 780 000 D) 1: 556 000

[GNAV-PT01 #15] Where on a Direct Mercator projection is the chart convergency correct compared to the earth convergency? A) At the poles. B) All over the chart. C) At the two parallels of tangency. D) At the equator.

[GNAV-PT01 #16] On a chart a straight line is drawn between two points and has a length of 4.63 cm. What is the chart scale if the line represents 150 NM? A) 1 : 6 000 000 B) 1 : 3 000 000 C) 1 : 1 000 000 D) 1 : 5 000 000

[GNAV-PT01 #17] A straight line on a Lambert Conformal Projection chart for normal flight planning purposes: A) is approximately a Great Circle B) is a Loxodromic line C) is a Rhumb line D) can only be a parallel of latitude

[GNAV-PT01 #18] On a Direct Mercator chart, meridians are: A) parallel, equally spaced, vertical straight lines B) parallel, unequally spaced, vertical straight lines C) inclined, equally spaced, straight lines that meet at the nearer pole D) inclined, unequally spaced, curved lines that meet at the nearer pole

[GNAV-PT01 #19] Two places are situated on the same parallel in the Southern Hemisphere. The great circle, rhumb line and the straight line between these places are drawn on a Polar Stereographic Projection. Which statement is correct? A) The correct sequence from North to South is: Great circle, straight line, rhumb line. B) The great circle is situated between the parallel and the straight line, because the concave side of the great circle is always pointed towards the equator. C) The great circle is situated between the parallel and the straight line, because the concave side of the great circle is always pointed towards the pole. D) The rhumb line is situated between the great circle and the straight line because the shortest distance between to places on Earth is the great circle.

[GNAV-PT01 #20] On a Polar Stereographic chart, the initial great circle course from A 70°N 060°W to B 70°N 060°E is approximately: A) 210° (T) B) 150° (T) C) 330° (T) D) 030° (T)

[GNAV-PT01 #21] Given: GS = 480 kts. Distance from A to B = 5360 NM. What is the time from A to B? A) 11 HR 06 MIN B) 11 HR 10 MIN C) 11 HR 15 MIN D) 11 HR 07 MIN

[GNAV-PT01 #22] Given: GS = 95 kts. Distance from A to B = 480 NM. What is the time from A to B? A) 5 HR 03 MIN B) 5 HR 08 MIN C) 4 HR 59 MIN D) 5 HR 00 MIN

[GNAV-PT01 #23] Given: TAS = 485 kt, OAT = ISA +10°C, FL 410. Calculate the Mach Number?

[GNAV-PT01 #24] 265 US-GAL equals? (Specific gravity 0.80) A) 940 kg B) 895 kg C) 803 kg D) 862 kg

[GNAV-PT01 #25] Given: TAS = 155 kt, HDG (T) = 216°, W/V = 090/60kt. Calculate the Track (°T) and GS. A) 231 - 196 kt B) 224 - 175 kt C) 222 - 181 kt D) 226 - 186 kt

[GNAV-PT01 #26] Which of the following are imperial units of weight? Mark all correct answers. A) Grams (g) B) Milligrams (mg) C) Pounds (lb) D) Ounces (oz) E) Kilograms (kg)

[GNAV-PT01 #27] Which of the following are metric units of weight? Mark all correct answers. A) Grams (g) B) Kilograms (kg) C) Ounces (oz) D) Milligrams (mg) E) Tonnes (t) F) Pounds (lb)

[GNAV-PT01 #28] Which of the following are imperial units of volume? Mark all correct answers. A) Imperial Gallon (Imp.Gal) B) US Gallon (US.Gal.) C) Pint D) Litre (l or ltr) E) Millilitre (ml)

[GNAV-PT01 #29] Which of the following are metric units of volume? Mark all correct answers. A) Imperial Gallon (Imp.Gal) B) Millilitre (ml) C) Pint D) Litre (l or ltr) E) US Gallon (US.Gal.)

[GNAV-PT01 #30] Which of the following are metric units of distance? Mark all correct answers. A) Millimetre (mm) B) Statute mile (sm) C) Nautical Mile (nm) D) Centimetre (cm) E) Kilometre (km) F) Metre (m) G) Inch (in) H) Foot (ft) I) Yard (yd)

[GNAV-PT01 #31] Which of the following are imperial units of distance? Mark all correct answers. A) Foot (ft) B) Centimetre (cm) C) Metre (m) D) Nautical Mile (nm) E) Yard (yd) F) Statute mile (sm) G) Inch (in) H) Millimetre (mm) I) Kilometre (km)

[GNAV-PT01 #32] A train is travelling at a constant 120 mph. Using a mechanical flight computer, approximately how far would it have travelled after 22 minutes? A) 40 sm B) 44 sm C) 48 sm D) 36 sm

[GNAV-PT01 #33] An aircraft is flying at a constant 240 knots. Using a mechanical flight computer, approximately how far would it have travelled after 45 minutes? A) 240 nm B) 300 nm C) 120 nm D) 180 nm

[GNAV-PT01 #34] A car is driving at a constant 96 km/hr. Using a mechanical flight computer, approximately how far would it have travelled after 1 hr 30 min? A) 89.5 sm B) 144 sm C) 240 km D) 93 sm

[GNAV-PT01 #35] A train is travelling at a constant 120 mph. Using a mechanical flight computer, approximately how long does it take to travel 40 sm? A) 48 min B) 40 min C) 15 min D) 20 min

[GNAV-PT01 #36] An aircraft is flying at a constant 240 knots. Using a mechanical flight computer, approximately how long does it take to travel 380 nm? A) 1 hr 35 min B) 9 hr 30 min C) 1 hr 52 min D) 1 hr 31 min

[GNAV-PT01 #37] A car is driving along a motorway at a constant 135 km/hr. Using a mechanical flight computer, approximately how long does it take to travel 56 sm? A) 25 min B) 2 hr 6 min C) 1 hr 16 min D) 40 min

[GNAV-PT01 #38] A train is travelling at a constant 150 mph. Using a mechanical flight computer, approximately how far would it have travelled after 22 minutes? A) 40 sm B) 50 sm C) 55 sm D) 27 sm

[GNAV-PT01 #39] An aircraft is flying at a constant 300 knots. Using a mechanical flight computer, approximately how far would it have travelled after 45 minutes? A) 200 nm B) 250 nm C) 225 nm D) 185 nm

[GNAV-PT01 #40] A racing car is driving at a constant 360 km/hr. Using a mechanical flight computer, approximately how far would it have travelled after 1 hr 30 min? A) 285 sm B) 300 sm C) 315 sm D) 335 sm

[GNAV-PT01 #41] A bicycle is travelling at a constant 8 mph. Using a mechanical flight computer, approximately how long does it take to travel 56 sm? A) 7 hrs B) 7.5 hrs C) 6.5 hrs D) 8 hrs

[GNAV-PT01 #42] Distance = A) Speed x Time. B) Speed ÷ Time. C) Time ÷ Speed

[GNAV-PT01 #43] Speed = A) Distance ÷ Time B) Time ÷ Speed. C) Distance x Time.

[GNAV-PT01 #44] Time = A) Speed ÷ Distance B) Distance ÷ Speed C) Distance x Speed

[GNAV-PT01 #45] What is the name given to the irregular shape of the Earth, which is based on the surface of the oceans, and influenced only by gravity and centrifugal force? A) Geoid B) WGS-84 ellipsoid C) Oblate spheroid D) Ellipsoid

[GNAV-PT01 #46] What is the name given to the mathematical shape, which defines the Earth? A) Oblate spheroid B) Ellipsoid C) WGS-84 ellipsoid D) Geoid

[GNAV-PT01 #47] What is the international standard ellipsoid, used to reference geographical coordinates? A) Oblate spheroid B) Ellipsoid C) WGS-84 ellipsoid D) Geoid

[GNAV-PT01 #48] What is the approximate circumference of the Earth at the Equator? A) 21 600 km B) 21 600 nm C) 40 000 sm D) 40 000 nm

[GNAV-PT01 #49] In which direction does the Earth rotate around its vertical axis? A) Easterly B) Southerly C) Northerly D) Westerly

[GNAV-PT01 #50] What is the name given to the orbital path taken by the Earth around the Sun? A) Ellipsoid B) Elliptical C) Eclipse D) Ecliptic

[GNAV-PT01 #51] In relation to the easterly rotational direction of the Earth on its vertical axis, which direction does the Earth orbit the Sun? A) Easterly B) Westerly C) Northerly D) Southerly

[GNAV-PT01 #52] What is the angle of inclination between the Earth’s horizontal, equatorial axis and the Ecliptic? A) 90° B) 23½° C) 66½° D) 00°

[GNAV-PT01 #53] The circumference of the Earth is approximately __________ km. A) 21 600 B) 40 000 C) 26 100

[GNAV-PT01 #54] The Earth rotates around a __________ axis, located between the South and North Poles, in an __________ direction. A) vertical; easterly B) horizontal; westerly C) horizontal; easterly D) vertical; westerly

[GNAV-PT01 #55] The Earth orbits the Sun along the plane of the __________ (orbital path) in the same direction that it rotates on its __________ axis. A) ecliptic; horizonal B) insolation; horizontal C) insolation; vertical D) ecliptic; vertical

[GNAV-PT01 #56] The Earth’s equatorial axis is inclined at an angle of __________ from the ecliptic. A) 45½° B) 25½ C) 23½° D) 22½°

[GNAV-PT01 #57] The inclination of the Earth from the ecliptic results in: Mark 3 correct answers. A) Fixed durations of daylight at different latitudes at different times of the year. B) Changing seasonal patterns across the surface of the Earth. C) Changing insolation over the surface of the Earth throughout the solar year. D) Changing durations of daylight at different latitudes at different times of the year. E) Constant insolation over the surface of the Earth throughout the solar year.

[GNAV-PT01 #58] Changing insolation throughout the year is the cumulative result of: The __________ of the Earth from the ecliptic. A) deviation B) inclination C) declination D) variation

[GNAV-PT01 #59] The changing insolation of the surface of the Earth results from: A) Constant position of the Sun over the surface of the Earth throughout the solar year B) Changing position of the Sun over the surface of the Earth throughout the solar year. C) Inclination of the Earth relative to the Ecliptic. D) Fixed durations of daylight at different latitudes at different times of the year. E) Inclination of the Sun relative to the Earth. F) Changing distance of the Earth from the Sun throughout the year.

[GNAV-PT01 #60] Changing insolation throughout the year is the cumulative result of: The __________ position of the Sun, relative to the surface of the Earth. A) inclination B) deviation C) variation D) changing

[GNAV-PT01 #61] Changing insolation throughout the year is partly due to: The changing distance of the Earth from the Sun, owing to the __________ orbit of the Earth around the Sun. A) declination B) deviation C) variation D) elliptical

[GNAV-PT01 #62] How are positions on the surface of the Earth defined? A) Latitude and longitude coordinates. B) East and west coordinates. C) Equatorial and polar distances. D) North and south coordinates.

[GNAV-PT01 #63] What units are used to define coordinates on the surface of the Earth? A) Positive and negative declination. B) Hours, minutes and seconds. C) Degrees, minutes and seconds. D) Radians and Mils.

[GNAV-PT01 #64] Coordinates are defined as the point of intersection between...? A) A meridian of latitude and a parallel of longitude. B) A meridian of longitude and its anti-meridian. C) A meridian of longitude and a co-latitude. D) A meridian of longitude and a parallel of latitude.

[GNAV-PT01 #65] What name is given to lines on the surface of the Earth, north and south of the Equator, which join points of equal geodetic latitude? A) A parallel of latitude. B) A meridian of longitude. C) A co-latitude. D) A meridian of latitude.

[GNAV-PT01 #66] What is the name given to the angle between the plane of the Greenwich Meridian and a line joining the centre of the Earth’s vertical axis to a specified point on the Earth's surface. A) Co-latitude. B) Longitude. C) Meridian. D) Latitude.

[GNAV-PT01 #67] What is the name given to a line joining points of equal longitude? A) A meridian of longitude. B) A co-latitude. C) A meridian of latitude. D) A parallel of latitude.

[GNAV-PT01 #68] What is the general direction of a meridian of longitude? A) South, from the South Pole to the North Pole. B) South, from the North Pole to the South Pole. C) North, from the North Pole to the South Pole. D) North, from the South Pole to the North Pole.

[GNAV-PT01 #69] Positions on the surface of the Earth and the WGS-84 ellipsoid are defined as the point of intersection of a geodetic __________ and a geodetic __________. A) latitude; longitude. B) longitude; latitude. C) meridian; parallel. D) parallel; meridian.

[GNAV-PT01 #70] Geodetic latitude is the angle between the plane of the Earth's Equator and a line, __________ to the surface of the Earth at a specified point on the Earth's surface, joining that point to the __________ of the Equator. A) perpendicular; plane. B) meridian; parallel. C) plane; perpendicular. D) parallel; meridian.

[GNAV-PT01 #71] Parallels of latitude are __________ lines on the surface of the Earth, north and south of the Equator, which join points of equal geographic latitude. A) variable B) vertical. C) imaginary. D) physical.

[GNAV-PT01 #72] Geodetic __________ is the angle between the plane of the Greenwich Meridian and a line joining the centre of the Earth’s __________ axis to a specified point on the Earth's surface. A) latitude; horizontal. B) latitude; vertical. C) longitude; vertical. D) longitude; horizontal.

[GNAV-PT01 #73] Meridians of longitude are imaginary lines on the surface of the Earth, west and east of the __________ Meridian, which join points of equal geodetic __________. A) Equator; latitude. B) Equator; longitude. C) Greenwich; longitude. D) Greenwich; latitude.

[GNAV-PT01 #74] The __________ is the complementary angle to the latitude measured from the polar axis to the latitude. A) longitude B) co-longitude C) Equator D) co-latitude

[GNAV-PT01 #75] The antipodal geodetic latitude of any position has the __________ numerical value as the original position, but in the opposite hemisphere. A) same B) equal

[GNAV-PT01 #76] The antipodal geodetic longitude is calculated by __________ the original longitude __________, but in the opposite hemisphere. A) subtracting; to 180°. B) adding; to 180°. C) adding; :from 180°. D) subtracting; from 180°.

[GNAV-PT01 #77] The change of latitude between N72°00’ E035°00’ and N54°00’ E035°00’ is __________. A) 17°60' B) 20°00' C) 16°00' D) 18°00'

[GNAV-PT01 #78] The change of latitude between S38°00’ E120°00’ and N41°00’ E120°00’ is __________. A) 81°00' B) 78°60' C) 78°00' D) 79°00'

[GNAV-PT01 #79] What is the distance between N28°30’ W020°00’ and N15°00’ W020°00’? A) 2610 nm B) 810 km C) 810 nm D) 810 sm

[GNAV-PT01 #80] What is the distance between S57°45’ W077°30’ and N36°30’ W077°30’? A) 5655 sm B) 5655 km C) 10 473 km D) 10 473 nm

[GNAV-PT01 #81] An aircraft travels due north from N33°25’ W107°30’ for 660 nm. What is its final position? A) S22°25’ W107°30’ B) N22°25’ W107°30’ C) N39°20’ W107°30’ D) N44°25’ W107°30’

[GNAV-PT01 #82] An aircraft travels due south from N03°30’ W045°30’ for 1666.8 km. What is its final position? A) N11°30’ W045°30’ B) S24°18’ W045°30’ C) N18°30’ W045°30’ D) S11°30’ W045°30’

[GNAV-PT01 #83] The change of longitude between N60°00’ E082°30’ and N30°00’ W031°00’ is __________. A) 112°30’ B) 113°30’ C) 114°30’ D) 113°00’

[GNAV-PT01 #84] The change of longitude between S45°00’ E030°00’ and N60°00’ E015°00’ is __________. A) 16°00' B) 15°00' C) 05°00' D) 25°00'

[GNAV-PT01 #85] What is the shortest change of longitude between N36°00’ E155°00’ and N42°00’ W148°00’? A) 303°00’ B) 151°30’ C) 39°00’ D) 57°00’

[GNAV-PT01 #86] What is the distance between N60°00’ E075°00’ and N60°00’ E015°00’? A) 2910 km B) 3118 nm C) 3600 nm D) 1800 nm

[GNAV-PT01 #87] What is the distance between S30°00’ W142°00’ and S30°00’ E115°00’? A) 1620 nm B) 5352 nm C) 11 280 km D) 6155 nm

[GNAV-PT01 #88] What is the distance between S60°00’ W092°00’ and S60°00’ E089°00’? A) 5370 km B) 5370 sm C) 9301 nm D) 5370 nm

[GNAV-PT01 #89] What is the shortest distance between S70°00’ W075°00’ and S80°00’ E105°00’? A) 2910 nm B) 466 nm C) 1800 nm D) 1739 nm

[GNAV-PT01 #90] What is the shortest distance between N65°00’ E142°00’ and N58°00’ W038°00’? A) 5566 km B) 1632 nm C) 3420 nm D) 3005 nm

[GNAV-PT01 #91] What is the distance, via the North Pole, between N49°20’ E005°00’ and N59°20’ W170°00’? A) 4280 sm B) 4280 nm C) 2480 nm D) 6920 km

[GNAV-PT01 #92] To calculate new latitude and or longitude:Opposite hemispheres (east/west or north/south) = __________.Same hemisphere, e.g. east/east, = __________. A) SUBTRACT; SUBTRACT B) SUBTRACT; ADD C) ADD; ADD D) ADD; SUBTRACT

[GNAV-PT01 #93] The distance, expressed in nautical miles, between positions on the same meridian of longitude is calculated as a change of __________, measured in minutes of __________. A) latitude; arc. B) longitude; arc. C) longitude; latitude. D) latitude; latitude.

[GNAV-PT01 #94] 1° Change of Latitude = __________ nm and 1’ Change of Latitude = __________ nm. A) 60; 10 B) 60; 1 C) 1; 60 D) 360; 1

[GNAV-PT01 #95] Departure (nm) = Change of __________ (min) x __________ latitude A) latitude; cosine B) longitude; cosine C) latitude; sine D) longitude; sine

[GNAV-PT01 #96] Across Pole:Change of latitude = __________° - (Latitude 1 + Latitude 2)

[GNAV-PT01 #97] 1’ change of latitude along a meridian of longitude = __________ nm.Change of latitude (degrees) = Distance (nm) ÷ __________. A) 1; 60 B) 1; 30 C) 360; 1 D) 60; 1

[GNAV-PT01 #98] 1’ change of longitude, along a parallel of latitude = __________ nm along a parallel of latitude ÷ __________ of the latitude. A) 60; sine B) 60; cosine C) 1; sine D) 1; cosine

[GNAV-PT01 #99] For a constant change of longitude:Departure __________ with increasing latitude.Departure __________ with decreasing latitude. A) decreases; decreases. B) decreases; increases. C) increases; decreases. D) increases; increases.

[GNAV-PT01 #100] For a constant east-west distance:Change of longitude __________ with increasing latitudeChange of longitude __________ with decreasing latitude A) decreases; decreases. B) decreases; increases. C) increases; increases. D) increases; decreases.

[GNAV-PT01 #101] The Earth’s equatorial axis is inclined at an angle of __________ from the ecliptic.

[GNAV-PT01 #102] An aircraft travels due north from N33°25’ W107°30’ for 660 nm. What is its final position?

[GNAV-PT01 #103] What is the shortest distance between N65°00’ E142°00’ and N58°00’ W038°00’?

[GNAV-PT01 #104] The change of longitude between S45°00’ E030°00’ and N60°00’ E015°00’ is __________.

[GNAV-PT01 #105] What are the antipodes of a position on the surface of the Earth?

[GNAV-PT01 #106] What is the correct formula for solving speed?

[GNAV-PT01 #107] A train is travelling at a constant 120 mph. Using a mechanical flight computer, approximately how far would it have travelled after 22 minutes?

[GNAV-PT01 #108] An aircraft is flying at a constant 110 knots. Using a mechanical flight computer, approximately how long does it take to travel 145 sm?

[GNAV-PT01 #109] An aircraft must fly a distance of 225 nm in no more than 1 hr 55 min. Using a mechanical flight computer, what is the minimum speed it must maintain?

[GNAV-PT01 #110] Changing insolation throughout the year is the cumulative result of: The __________ position of the Sun, relative to the surface of the Earth.

[GNAV-PT01 #111] In relation to the easterly rotational direction of the Earth on its vertical axis, which direction does the Earth orbit the Sun?

[GNAV-PT01 #112] Changing insolation throughout the year is partly due to: The changing distance of the Earth from the Sun, owing to the __________ orbit of the Earth around the Sun.

[GNAV-PT01 #113] Changing insolation throughout the year is the cumulative result of: The __________ of the Earth from the ecliptic.

[GNAV-PT01 #114] What name is given to lines on the surface of the Earth, north and south of the Equator, which join points of equal geodetic latitude?

[GNAV-PT01 #115] Parallels of latitude are __________ lines on the surface of the Earth, north and south of the Equator, which join points of equal geographic latitude.

[GNAV-PT01 #116] The distance, expressed in nautical miles, between positions on the same meridian of longitude is calculated as a change of __________, measured in minutes of __________.

[GNAV-PT01 #117] 1’ change of latitude along a meridian of longitude = __________ nm. Change of latitude (degrees) = Distance (nm) ÷ __________.

[GNAV-PT01 #118] The antipodal geodetic longitude is calculated by __________ the original longitude __________, but in the opposite hemisphere.

[GNAV-PT01 #119] What is the name given to the angle between the plane of the Greenwich Meridian and a line joining the centre of the Earth’s vertical axis to a specified point on the Earth's surface.

[GNAV-PT01 #120] What are the antipodes of S72 42' E115° 37'?

[GNAV-PT01 #121] Geodetic latitude is the angle between the plane of the Earth's Equator and a line, __________ to the surface of the Earth at a specified point on the Earth's surface, joining that point to the __________ of the Equator.