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Atpl bristolgs general navigation exam 3 2023/2024 Update
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Atpl bristolgs general navigation exam 32023/2024 Update
CONTAINS MARKING SCHEME ON THE LAST PAGE
Exam 3, 54 questions; 77 marks; time allowed 2 hours
1. The Earth may be described as:
(a) a sphere which has a larger polar circumference than equatorial
circumference
(b) a sphere whose centre is equidistant from the Poles and the
Equator
(c) always considered to be a perfect sphere for the purposes of
navigation
(d) none of the above statements is correct
(1)
2. If an aircraft flew around the world at latitude 60°N it would cover a
distance of:
(a) 5,400 nm
(b) 18,700 nm
(c) 10,800 nm
(d) 21,600 nm
(1)
3. How would you define standard time in relation to Greenwich Mean
Time?
(a) it is local mean time
(b) it is local mean time adjusted to standard time
(c) it is local mean time adjusted for latitude
(d) it is another term for UTC
(1)
4. An aircraft is positioned on the Equator at 130°E. If it travels on a
heading of 252°T for 100 nm its position will be:
(a) 00°32’S 128°28’E
(b) 00°30’S 131°32’E
(c) 00°28’N 128°30’E
(d) 00°28’S 131°29’E
(2)
5. What does 5 hours 50 minutes and 20 seconds change of longitude
represent ?
(a) 81° 25’
(b) 35° 15’
(c) 80° 05’
Bristol Groundschool General Navigation Exam 3.1
, (d) 87° 35’
(2)
Bristol Groundschool General Navigation Exam 3.2
,6. What is the approximate circumference of the Earth ?
(a) 40000 km
(b) 21600 km
(c) 6600 km
(d) 13200 km
(1)
7. Sun rise at 50°N 072°E is at 0254 UTC on 25th January. What time
will the sun rise at 50°N 007°E on that day ?
(a) 0254 UTC
(b) 2154 UTC
(c) 0714 UTC
(d) 0514 UTC
(2)
8. The length of daylight changes with the declination of the sun. In mid-
latitudes (e.g. 45°N/S) the rate of change will be greatest at:
(a) the solstices
(b) perihelion
(c) the equinoxes
(d) aphelion
(1)
9. Permanent magnetism in aircraft arises chiefly from:
(a) the effect of internal wiring and exposure to electrical storms
(b) exposure to the earth's magnetic field during normal operation
(c) the combined effect of aircraft electrical equipment and the earth's
magnetic field
(d) hammering, and the effect of the earth's magnetic field, whilst
under construction
(1)
10. An aircraft is at 50°S 134°E heading 100°M. When the aircraft
accelerates the direct reading compass will:
(a) be deflected clockwise and indicate a turn to port
(b) be deflected clockwise and indicate a turn to starboard
(c) be deflected anticlockwise and indicate a turn to port
(d) be deflected anticlockwise and indicate a turn to starboard
(1)
11. What is the main use of an Oblique Mercator chart ?
(a) topographical maps in equatorial areas
(b) route charts for selected great circle routes
(c) route charts for trans-polar routes
(d) accurate depiction of rhumb line tracks
(1)
Bristol Groundschool General Navigation Exam 3.3
, 12 On a Mercator chart the scale at the Equator is 1:3,704,000. What is
the scale of the chart at 60°S ?
(a) 1:3,207,664
(b) 1:3,704,000
(c) 1:1,852,000
(d) 1:7,408,000
(2)
13. The convergence factor (n) of a Lamberts chart is given as 0.78535. At
what latitude (to the nearest degree) is chart convergence correct ?
(a) 25°
(b) 38°
(c) 52°
(d) 78°
(1)
14. What is the convergence factor of a Polar Stereographic chart?
(a) sine of the Standard Parallel
(b) n=1
(c) sine of the parallel of origin
(d) zero
(1)
15. On a chart with a scale of 1:600,000 the distance between two point is
42 mm. What is the distance on the Earth between these two points ?
(a) 2.52 km
(b) 25.2 km
(c) 252 km
(d) 2,520 km
(2)
16. Where, on a Lamberts chart, is a great circle an exact straight line ?
(a) the Equator only
(b) all great circle tracks are depicted as straight lines
(c) meridians of longitude
(d) any parallel of latitude including the Equator
(1)
17. Where is the scale correct on a Transverse Mercator chart ?
(a) at the Standard Parallels
(b) along the central meridian and its anti-meridian
(c) at the Parallel of Origin
(d) scale is constant over the entire chart
(1)
Bristol Groundschool General Navigation Exam 3.4
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