Vayudoot Aviation

1. On a Direct Mercator chart at latitude of 85°N, a certain length represents a distance of 60 NM on the earth. The same length on the chart will represent on the earth, at latitude 30°N, a distance of?

596 nm.

605 nm.

580 nm.

620 nm.

2. What is the chart distance between longitudes 179°E and 175°W on a direct Mercator chart with a scale of 1 : 2 000 000 at the equator?

313 cm.

300 mm.

325 mm.

333 mm.

3. What is the distance between longitudes 175°E and 175°W on direct Mercator chart with a scale of 1 : 7 000 000 at the equator?

176 mm.

159 mm.

163 cm.

145 mm.

4. The total length of the 45°N parallel of latitude on a direct Mercator chart is 85 cm. What is the approximate scale of the chart at latitude 60°S?

1 : 23 500 000.

1 : 26 500 000.

1 : 16 500 000.

1 : 12 500 000.

5. In a navigation chart a distance of 49 NM is equal to 7 cm. The scale of the chart is approximately?

1 : 2 000 000.

1 : 1 600 000.

1 : 2 300 000.

1 : 1 300 000.

6. Given: Chart scale 1 : 2 000 000. The chart distance between two points is 4 centimetres. Earth distance is approximately?

50 nm.

43 nm.

30 nm.

55 nm.

7. Approximately how many nautical miles correspond to 35 cm on a map with a scale of 1 : 500 000?

94.5 nm.

85.5 nm.

80 nm.

90 nm.

8. On a direct Mercator projection, at latitude 45° North, a certain length represents 70 NM. At latitude 30° North, the same length represents approximately?

75 nm.

90 nm.

86 nm.

45 nm.

9. On a Direct Mercator chart at latitude of 70°N, a certain length represents a distance of 90 NM on the earth. The same length on the chart will represent on the earth, at latitude 10°N, a distance of?

265 nm.

220 nm.

259 nm.

210 nm.

10. On a direct Mercator projection, at latitude 45° North, a certain length represents 70 NM. At latitude 40° North, the same length represents approximately?

86 nm.

45 nm.

90 nm.

76 nm.

11. On a Direct Mercator chart at latitude 15°C, a certain length represents a distance of 130 NM on the earth. The same length on the chart will represent on the earth, at latitude 10°N, a distance of?

135.4 nm.

132.5 nm.

125.2 nm.

146.5 nm.

12. On a direct Mercator projection, at latitude 45° North, a certain length represents 79 NM. At latitude 30° North, the same length represents approximately?

97 nm.

65 nm.

78 nm.

93 nm.

13. On a Direct Mercartor chart at latitude of 45°N, a certain length represents a distance of 90 NM on the earth. The same length on the chart will represent on the earth, at latitude 30°N, a distance of?

110 nm.

120 nm.

125 nm.

100 nm.

14. In a navigation chart a distance of 55 NM is equal to 7 cm. The scale of the chart is approximately?

1 : 1 500 000.

1 : 1 600 000.

1 : 2 700 000.

1 : 2 300 000.

15. What is the chart distance between longitudes 179°E and 175°W on a direct Mercator chart with a scale 1 : 5 000 000 at the equator?

133 mm.

113 cm.

100 mm.

125 mm.

16. The nominal scale of a Lambert conformal conic chart is the?

Scale at the standard parallels.

Constant at all points on the chart.

Scale at the parallel of origin.

Scale at the poles.

17. At 47° North the chart distance between meridians 10° apart is 5 inches. The scale of the chart at 47° North approximates?

1 : 5 000 000.

1 : 12 000 000.

1 : 600 000.

1 : 6 000 000.

18. The total length of the 70°N parallel of latitude on a direct Mercator chart is 120 cm. What is the approximate scale of the chart at latitude 40°S?

1 : 25 500 000.

1 : 2 600 000.

1 : 7 250 000.

1 : 16 050 000.

19. A straight line on a chart 4.89 long represents 100 NM. The scale of this chart is approximately?

1 : 3 500 000.

1 : 4 000 000.

1 : 2 000 000.

1 : 5 500 000.

20. Given: Direct Mercator chart with a scale of 1 : 200 000 at equator; Chart length from 'A' to 'B', in the vicinity of the equator, 11 cm. What is the approximate distance from 'A' to 'B'?

15 nm.

22 nm.

10 nm.

12 nm.

21. On a Direct Mercator chart at latitude of 75°N, a certain length represents a distance of 75 NM on the earth. The same length on the chart will represent on the earth, at latitude 30°N, a distance of?

125 nm.

210 nm.

251 nm.

200 nm.

22. Approximately how many nautical miles correspond to 7 cm on a map with a scale of 1 : 500 000?

19 nm.

22 nm.

29 nm.

17 nm.

23. On a chart, the distance along a meridian between latitudes 45°N and 46°N is 6 cm. The scale of the chart is approximately?

1 : 2 000 000.

1 : 1 850 000.

1 : 1 650 000.

1 : 1 500 000.

24. At 60°N the scale of a direct Mercator chart is 1 : 4 000 000. What is the scale at the equator?

1 : 4 500 000.

1 : 8 000 000.

1 : 12 000 000.

1 : 6 000 000.

25. A straight line on a chart 4.89 cm long represents 185 NM. The scale of this chart is approximately?

1 : 6 500 000.

1 : 5 500 000.

1 : 7 000 000.

1 : 6 000 000.

26. Given: Direct Mercator chart with a scale of 1 : 200 000 at equator; Chart length from 'A' to 'B' in the vicinity of the equator, 27 cm. What is the approximate distance from 'A' to 'B'?

22 nm.

29 nm.

20 nm.

25 nm.

27. At 60° N the scale of a direct Mercator chart is 1: 3 500 000. What is the scale at the equator?

1 : 4 500 000.

1 : 3 500 000.

1 : 500 000.

1 : 7 000 000.

28. What is the distance between longitudes 170°E and 170°W on direct Mercator chart with a scale of 1 : 20 000 000 at the equator?

125 cm.

133 mm.

111 mm.

100 mm.

29. Approximately how many nautical miles correspond to 20 cm on a map with a scale of 1 : 2 000 000?

200 nm.

240 nm.

130 nm.

216 nm.

30. On a Direct Mercator chart at latitude of 45°N, a certain length represents a distance of 25 NM on the earth. The same length on the chart will represent on the earth, at latitude 30°N, a distance of?

25 nm.

45 nm.

31 nm.

20 nm.

31. On a direct Mercator projection, the distance measured between two meridians spaced 5° apart at latitude 60°N is 8 cm. The scale of this chart at latitude 60°N is approxiately?

1 : 2 000 000.

1 : 5 000 000.

1 : 4 500 000.

1 : 3 500 000.

32. On a direct Mercator projection, the distance measured between two meridians spaced 5° apart at latitude 60°N is 12 cm. The scale of this chart at latitude 60°N is approximately?

1 : 2 300 000.

1 : 3 200 000.

1 : 2 000 000.

1 : 1 500 000.

33. What is the distance between longitudes 179°E and 179°W on direct Mercator chart with a scale of 1 : 500 000 at the equator?

467 mm.

333 mm.

159 mm.

444 cm.

34. At 60°N the scale of a direct Mercator charts is 1 : 2 750 000. What is the scale at the equator?

1 : 5 500 000

1 : 2 500 000.

1 : 3 500 000.

1 : 1 500 000.

35. On a direct Mercator projection, at latitude 45° North, a certain length represents 98 NM. At latitude 30° North, the same length represents approximately?

99 nm.

115 nm.

120 nm.

128 nm.

36. Approximately how many nautical miles correspond to 13 cm on a map with a scale of 1 : 2 000 000?

130 nm.

140 nm.

150 nm.

100 nm.

37. Approximately how many nautical miles correspond to 12 cm on a map with a scale of 1 : 2 000 000?

130 nm.

130 cm.

240 nm.

200 nm.

38. 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 : 2 600 000.

1 : 26 000 000.

1 : 125 000.

1 : 6 000 000.

39. Approximately how many nautical miles correspond to 25 cm on a map with a scale of 1 : 3 000 000?

450 nm.

400 nm.

405 nm.

430 nm.

40. On a Direct Mercator chart at latitude of 45°N, a certain length represents a distance of 39 NM on the earth. The same length on the chart will represent on the earth, at latitude 30°N, a distance of?

40 nm.

37 nm.

45 nm.

48 nm.

41. The scale on Lambert's conformal conic chart?

Is contstant.

Is constant along a meridian of longtitude.

Is constant along a parallel of latitude.

Varies slightly as a function of longitude and latitude.

42. The scale is correct on a Transverse Mercator chart?

Along the datum meridian and meridians at 90° to it.90

Along the great circle of tangency.

At the prime meridian.

At the poles and the equator.

43. Given: Chart scale is 1 : 1 850 000. The chart distance between two points is 4 centimetres. Earth distance is approximately?

35 nm.

40 nm.

55 nm.

50 nm.

44. Given: Chart scale 1 : 3 000 000. The chart distance between two points is 24 centimetres. Earth distance is approximately?

839 nm.

389 nm.

38.9 nm.

3.89 nm.

45. On a Lambert Conformal chart the distance between meridians 5° apart along latitude 37° North is 11cm. The scale of the chart at that parallel approximates?

1 : 4 000 000.

1 : 4 500 000.

1 : 5 000 000.

1 : 3 500 000.

46. On a Direct Mercator chart at latitude of 70°N, a certain length represents a distance of 120 NM on the earth. The same length on the chart will represent on the earth, at latitude 10°N, a distance of?

320 nm.

346 nm.

259 nm.

365 nm.

47. At 47° North the chart distance between meridians 10° apart is 6 inches. The scale of the chart at 47° North approximates?

1 : 5 000 000.

1 : 600 000.

1 : 12 000 000.

1 : 6 000 000.

48. Approximately how many nautical miles correspond to 9 cm on a map with a scale of 1 : 5 000 000?

240 nm.

256 nm.

243 nm.

49. Assume a Mercator chart. The distance between potistions 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?

45° N or S.

60° N or S.

30° N or S.

75° N or S.

50. A Mercator chart has a scale at the equator = 1: 3 704 000. What is the scale at latitude 60 °S?

1 : 1 500 000.

1 : 2 000 000.

1 : 1 408 000.

1 : 1 852 000.

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