WorksheetsGNAV MOCK 1
Total questions: 60
Worksheet time: 2hrs 51mins
Two places on the parallel of 47ºS lie 757.8 km apart. Calculate the difference in longitude.
10º00'
4º51'
9º19'
4º39'
Kepler's second law states:
Each planet's radius vector, sun to earth, moves at a constant angular speed
Each planet revolves so that the radius vector, sun to earth, sweeps out equal area in equal intervals of time
The length of the radius vector, sun to earth, is proportional to the square root of its angular speed
The area swept out by the radius vector of each planet, sun to earth, per hour, increasing with increasing length of the radius vector
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
Track angle will increase and the latitude will decrease.
Track angle will decrease and the latitude will decrease.
Track angle will decrease and the latitude will increase.
Track angle will increase and the latitude will increase.
How many degrees has the mean sun moved along the celestial equator in 8 hours and 8 minutes?
148°
56°
122°
18°
The direction "Magnetic North" at a position on the earth is:
The great circle between the position and the Magnetic North pole.
The direction of the horizontal component of the of the earth's magnetic field at that position.
The Compass North at that position corrected for variation.
The isogonal to the Magnetic North pole.
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?
Summer solstice and winter solstice
Summer solstice and spring equinox
Spring equinox and autumn equinox
Winter solstice and autumn equinox
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:
A Rhumb Line Track
The constant average drift route
The great-circle route
A straight line plotted on a Lambert chart
Which statement is true?
Only the declination of the sun will affect the duration of civil twilight.
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.
The declination of the sun and the latitude of the observer will affect the duration of civil twilight.
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.
Which of these statements best defines the term " True North"?
The direction along the surface of the earth towards the geographic North Pole along the meridian on which you are located
The heading of the aircraft at the time
The direction related to Polaris, the North Star
The datum from which the aircraft heading is measured
Which definition of the equator is correct?
The equator is a small circle, the plane is parallel to the earth rotational axis.
The equator is a great circle with its plane parallel to the earth rotational axis.
The equator is a great circle with its plane perpendicular to the earth rotational axis.
The equator is a small circle with its plane perpendicular to the earth rotational axis.
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?
260° and in the Northern Hemisphere.
266° and in the Northern Hemisphere.
266° and in the Southern Hemisphere.
260° and in the Southern Hemisphere.
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?
15:55 on January 20th.
09:59 on January 21st.
08:57 on January 21st.
16:57 on January 20th.
The following points are entered into an inertial navigation system (INS): WPT 1: 60°N 30°W; WPT 2: 60°N 20°W; WPT 3: 60°N 10°W. The inertial navigation system is connected to the automatic pilot on route (1-2-3). The great circle track change when passing WPT 2 will be approximately:
A 9° decrease
A 9° increase
Zero
A 4° decrease
The horizontal component of the earth's magnetic field:
Weakens with increasing distance from the magnetic poles
Is approximately the same at magnetic latitudes 50°N and 50°S
Weakens with increasing distance from the nearer magnetic pole
Is approximately the same at all magnetic latitudes less than 60°
On which of the following chart projections is it NOT possible to represent the north or South Poles?
Transverse Mercator
Lambert's conformal
Direct Mercator
Polar stereographic
A straight line from A (53ºS, 155ºE) to B (53ºS, 170ºW) is drawn on a Lambert Conformal conical chart with Standard Parallels at 50ºS and 56ºS. When passing 175ºW, the True Track is:
078.0º
282.0º
258.0º
102.0º
The total length of the 53°N parallel of latitude on a direct Mercator chart is 133 cm. What is the approximate scale of the chart at latitude 30°S?
1: 18 000 000
1: 21 000 000
1: 30 000 000
1: 26 000 000
Which one of the following, concerning great circles on a Direct Mercator chart, is correct?
They are all curves convex to the equator
They are all curves concave to the equator
With the exception of meridians and the equator, they are curves concave to the equator
They approximate to straight lines between the Standard Parallels
Refer to Jeppesen GSPRM chart E(LO)2. You are 55 NM from HON VOR/DME (52°21.4'N 001°39.8'W) and 42 NM from POL VOR/DME (53°44.6'N 002°06.2'W), both distances increasing, with a heading of 086°M. What is your current position?
53°15'N 001°13'W
53°13'N 001°06'W
53°10'N 001°23'W
53°10'N 002°30'W
On a Polar Stereographic projection chart showing the South Pole, a straight line joins position A (70°S 065°E) to position B (70°S 025°W). The True Course on departure from position A is approximately:
135°
315°
250°
225°
(Refer to image)
Which aeronautical chart symbol indicates a lighted obstacle?
11
9
10
12
An aircraft is flying from SALCO to BERRY HEAD on Magnetic Track 007°, TAS 445 kt. The wind is 050°(T)/40 kt. Variation 5°W, deviation +2° At 1000 UTC the RB of locator PY is 311°. At 1003 UTC the RB of locator PY is 266°. Calculate the distance of the aircraft from locator PY at 1003 UTC.
21 NM
22 NM
23 NM
24 NM
What is the constant of the cone for a Lambert conic projection whose Standard Parallels are at 50°N and 70°N?
0.500
0.941
0.766
0.866
An aeronautical chart is conformal when:
The map is an equidistant normal projection
Every great circle is represented by a straight line in the map.
At any point the scale over a short distance in the direction of the parallel is equal to the scale in the direction of the meridian and the meridians are perpendicular to the parallels.
The meridians and parallels are perpendicular to each other.
The constant of cone of a Lambert conformal conic chart is quoted as 0.3955. At what latitude on the chart is earth convergency correctly represented?
23°18'
68°25'
21°35'
66°42'
Given: Airport elevation is 1000 ft. QNH is 988 hPa. What is the approximate airport pressure altitude?
(Assume 1 hPa = 27 ft)
- 320 FT
320 FT
1750 FT
680 FT
Given: TAS = 485 kt, HDG (T) = 168°, W/V = 130/75kt. Calculate the Track (°T) and GS?
173 - 424 kt
174 - 428 kt
175 - 432 kt
175 - 420 kt
Fuel flow per HR is 22 US-GAL, total fuel on board is 83 IMP GAL. What is the endurance?
2 HR 15 MIN
3 HR 12 MIN
4 HR 32 MIN
3 HR 53 MIN
Given: True Track 245° Drift 5° right Variation 3° E Compass Hdg 242° Calculate the deviation.
1° E
2° W
3° E
5° W
Given: TAS = 472 kt, True HDG = 005°, W/V = 110°(T)/50kt. Calculate the drift angle and GS?
6°L/402 kt
6°R/490 kt
6°R/462 kt
6°L/490 kt
Given: TAS = 95 kt, HDG (T) = 075°, W/V = 310/20kt. Calculate the drift and GS?
9R - 108 kt
8R - 104 kt
9L - 105 kt
10L - 104 kt
Given: Aircraft at FL 150 overhead an airport. Elevation of airport 720 FT. QNH is 1003 hPa. OAT at FL150 -5°C. What is the true altitude of the aircraft? (Assume 1 hPa = 27 FT)
15 840 FT
14 160 FT
14 720 FT
15 300 FT
Given: TAS = 485 kt, True HDG = 226°, W/V = 110°(T)/95kt. Calculate the drift angle and GS?
8°L - 435 kt
9°R - 533 kt
7°R - 531 kt
9°R - 433 kt
Given: TAS 487kt, FL 330, Temperature ISA + 15. Calculate the MACH Number?
0.78
0.76
0.84
0.81
An aircraft is following a True Track of 048° at a constant TAS of 210 kt. The wind velocity is 350° / 30 kt.
The GS and drift angle are:
200 kt, 3.5° right
225 kt, 7° left
192 kt, 7° left
192 kt, 7° right
An aircraft passes point A at 14.37 UTC and point B at 14.49 UTC. The distance between A and B on the chart is 11.4 cm and the scale of the chart is such that 1cm equals 3.2 NM.
What is the Ground speed?
177
182
185
190
Given: CAS 120 kt, FL 80, OAT +20°C. What is the TAS?
132 kt
120 kt
141 kt
102 kt
The reported surface wind from the Control Tower is 240°/35 kt. Runway 30 (300°). What is the cross-wind component?
27 kt
30 kt
24 kt
21 kt
Given Altitude 5500', Temp +33 Calculate the Density Altitude.
9000
5800
6000
6500
Given: True HDG = 133°, TAS = 225 kt, Track (T) = 144°, GS = 206 kt. Calculate the W/V?
075/50kt
070/40kt
075/45kt
070/45kt
Given: TAS = 485 kt, OAT = ISA +10°C, FL 410. Calculate the Mach Number?
0.85
0.87
0.825
0.90
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:
1350 FT
1450 FT
1300 FT
1400 FT
A ground feature was observed on a relative bearing of 315° and 3 MIN later on a relative bearing of 270°. The W/V is calm; aircraft GS 180 kt. What is the minimum distance between the aircraft and the ground feature?
9 NM
3 NM
6 NM
12 NM
Given: ETA to cross a Meridian is 2100 UTC, GS is 441 kt, TAS is 491 kts. At 2010 UTC, ATC requests a speed reduction to cross the Meridian at 2105 UTC. The reduction to TAS will be approximately:
40 kt
60 kt
90 kt
75 kt
Given: ILS GP angle = 3.5 DEG, GS = 150 kt. What is the approximate Rate of Descent?
700 FT/MIN
900 FT/MIN
1000 FT/MIN
800 FT/MIN
(Refer to Annex 061-600385)
After 15 minutes of flying with the planned TAS and TH the aircraft is 3 NM South of the intended track and 2.5 NM ahead of the dead reckoning position. To reach destination B from this position, the TH should be:
292º
287º
280º
258º
You are departing from an airport which has an elevation of 1500 ft. The QNH is 1003 hPa. 15 NM away there is a waypoint you are required to pass at an altitude of 7500 ft. Given a Ground Speed of 120 kt, what is the minimum rate of climb?
530 ft/min
730 ft/min
800 ft/min
870 ft/min
Your on an airfield elevation 2000ft, QNH 1003. You want to climb to FL50, your rate of climb is 1000ft/min, your TAS is 100 and you have a headwind of 20. What is the distance it takes to get to FL50?
4.0 NM
4.4 NM
3.6 NM
4.8 NM
An aircraft is planned to fly from position 'A' to position 'B', distance 250 NM at an average GS of 115 kt. It departs 'A' at 0900 UTC. After flying 75 NM along track from 'A', the aircraft is 1.5 MIN behind planned time. Using the actual GS experienced, what is the revised ETA at 'B'?
1050 UTC
1044 UTC
1110 UTC
1115 UTC
A ground feature appears 30° to the left of the centre line of the CRT of an airborne weather radar. If the heading of the aircraft is 355° (M) and the Magnetic Variation is 15° East, the true bearing of the aircraft from the feature is:
220°
160°
130°
310°
Assuming zero wind, what distance will be covered by an aircraft descending 15000 FT with a TAS of 320 kt and maintaining a Rate of Descent of 3000 FT/MIN?
26.7 NM
16.0 NM
19.2 NM
38.4 NM
Given:
Distance 'A' to 'B' is 100 NM,
Fix obtained 40 NM along and 6 NM to the left of course.
What heading alteration must be made to reach 'B'?
18° Right
15° Right
6° Right
9° Right
An island appears 45° to the right of the centre line on an airborne weather radar display. What is the true bearing of the aircraft from the island if at the time of observation the aircraft was on a Magnetic Heading (MH) of 215° with the Magnetic Variation 21ºW?
101°
059°
329°
239°
An aircraft at FL350 is required to descend to cross a DME facility at FL80. Maximum Rate of Descent is 1800 FT/MIN and mean GS for descent is 276 kt. The minimum range from the DME at which descent should start is:
69 NM
79 NM
49 NM
59 NM
An aircraft at FL290 is required to commence descent when 50 NM from a VOR and to cross that VOR at FL80. Mean GS during descent is 271kt. What is the minimum Rate of Descent required?
1900 FT/MIN
1700 FT/MIN
2000 FT/MIN
1800 FT/MIN
265 US-GAL equals? (Specific gravity 0.80)
940 kg
862 kg
803 kg
895 kg
Assume a Mercator chart. The distance between positions A and B, located on the same parallel and 10° longitude apart, is 6 cm. The scale at the parallel is 1: 9 260 000. What is the latitude of A and B?
60° N or S
0°
30° N or S
45° N or S
The lines on the earth's surface that join points of equal Magnetic Variation are called:
Isotachs
Isogonals
Isogrives
Isoclines
What is the value of the magnetic dip at the magnetic South Pole?
90°
60°
45°
0°
How are Parallels of Latitude displayed on a Polar Stereographic Chart?
Concentric circles around the poles
Straight lines cutting the meridians at 90º
Curved lines concave to the Equator
Straight lines parallel to the equator
