Vayudoot Aviation

1. 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 : 3 500 000.

1 : 4 500 000.

1 : 5 000 000.

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

115 nm.

120 nm.

128 nm.

99 nm.

3. 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 : 1 850 000.

1 : 1 500 000.

1 : 2 000 000.

1 : 1 650 000.

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

86 nm.

75 nm.

45 nm.

90 nm.

5. A straight line drawn on a chart measures 4.63 cm and represents 125 NM. The chart scale is?

1 : 6 500 000.

1 : 6 000 000.

1 : 5 000 000.

1 : 4 500 000.

6. The total length of the 75°N parallel of latitude on a direct Mercator chart is 140 cm. What is the approximate scale of the chart at latitude 30°S?

1 : 6 000 000.

1 : 25 000 000.

1 : 2 900 000.

1 : 125 000.

7. 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?

1 : 2 780 000.

1 : 278 000.

1 : 27 800 000.

1 : 788 000.

8. The total length of the 53°N parallel of latitude on a direct Mercator chart is 127 cm. What is the approximate scale of the chart at latitude 30°S?

1 : 27 300 000.

1 : 12 500 000.

1 : 6 000 000.

1 : 2 600 000.

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

55 nm.

50 nm.

30 nm.

43 nm.

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

1 : 12 000 000.

1 : 600 000.

1 : 5 000 000.

1 : 6 000 000.

11. Approximately how many nautical miles correspond to 15 cm on a map with a scale of 1 : 3 000 000?

130 nm.

200 nm.

243 nm.

250 nm.

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

1 : 1 300 000.

1 : 2 000 000.

1 : 1 600 000.

1 : 2 300 000.

13. On a Direct Mercator 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 60°N, a distance of?

68 nm.

78 nm.

100 nm.

65 nm.

14. On a Direct Mercator chart at latitude of 40°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 20°N, a distance of?

125 nm.

100 nm.

120 nm.

110 nm.

15. 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 : 3 500 000.

1 : 5 000 000.

1 : 4 500 000.

1 : 2 000 000.

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

243 nm.

256 nm.

240 nm.

17. Apprximately how many nautical miles correspond to 15 cm on a map with a scale of 1 : 2 000 000?

130 nm.

162 nm.

140 nm.

156 nm.

18. What is the distance between longitudes 176°E and 176°W on direct Mercator chart with a scale of 1 : 4 000 000 at the equator?

222 mm.

276 mm.

263 cm.

245 mm.

19. A course of 120°(T) is drawn between 'X' (61°30'N) and 'Y'(58°30'N) on a Lambert Conformal conic chart with a scale of 1 : 1 000 000 at 60°N. The chart distance between 'X' and 'Y' is?

600 cm.

6.7 cm.

66.7 cm.

76.6 cm.

20. 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.

444 cm.

333 mm.

159 mm.

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?

251 nm.

125 nm.

200 nm.

210 nm.

22. A straight line drawn on a chart measures 4.63 cm and represents 150 NM. The chart scale is?

1 : 6 000 000.

1 : 4 500 000.

1 : 6 500 000.

1 : 5 000 000.

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

240 nm.

200 nm.

130 cm.

130 nm.

24. 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 : 125 000.

1 : 26 000 000.

1 : 6 000 000.

1 : 2 600 000.

25. 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.

145 mm.

159 mm.

163 cm.

26. On a Lambert Conformal chart the distance between meridians 5° apart along latitude 37° North 9 cm. The scale of the chart at that parallel approxiates?

1 : 5 000 000

1 : 4 500 000

1 : 4 000 000

1 : 3 500 000.

27. What is the distance between longitudes 165°E and 175°W on direct Mercator chart with a scale of 1 : 25 000 000 at the equator?

33 mm.

133 cm.

89 mm.

100 mm.

28. 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?

37 nm.

48 nm.

45 nm.

40 nm.

29. 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?

210 nm.

220 nm.

259 nm.

265 nm.

30. 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'?

20 nm.

25 nm.

22 nm.

29 nm.

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

839 nm.

389 nm.

3.89 nm.

38.9 nm.

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

Scale at the parallel of origin.

Scale at the standard parallels.

Constant at all points on the chart.

Scale at the poles.

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

50 nm.

40 nm.

35 nm.

55 nm.

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

130 nm.

100 nm.

150 nm.

140 nm.

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

1 : 6 000 000.

1 : 12 000 000.

1 : 600 000.

1 : 5 000 000.

36. 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 : 2 000 000.

1 : 1 500 000.

1 : 3 200 000.

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

1 : 6 000 000.

1 : 7 000 000.

1 : 5 500 000.

1 : 6 500 000.

38. 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 : 16 050 000.

1 : 25 500 000.

1 : 2 600 000.

1 : 7 250 000.

39. 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.

333 mm.

325 mm.

300 mm.

40. Given: Chart scale 1 : 250 000. The chart distance between two points is 4 centimetres. Earth distance is approximately?

3.0 nm.

6.5 nm.

5.0 nm.

5.4 nm.

41. 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.

100 nm.

125 nm.

42. On a Direct Mercator chart at latitude of 45°N, a certain length represents a distance of 96 NM on the earth. The same length on the chart will represent on the earth, at latitude 60°N, a distance of?

68 nm.

97 nm.

64 nm.

78 nm.

43. The total length of the 45°N parallel of latitude on a direct Mercator chart is 200 cm. What is the approximate scale of the chart at latitude 60°S?

1 : 125 000.

1 : 10 000 000.

1 : 6 000 000.

1 : 26 050 000.

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

405 nm.

450 nm.

400 nm.

430 nm.

45. Approximately how many nautical miles correspond to 10 cm on a map with a scale of 1 : 5 000 000?

256 nm.

290 nm.

270 nm.

240 nm.

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

Is constant along a meridian of longtitude.

Is contstant.

Varies slightly as a function of longitude and latitude.

Is constant along a parallel of latitude.

47. 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?

60° N or S.

30° N or S.

75° N or S.

45° N or S.

48. On a Direct Mercator chart at latitude of 75°N, a certain length represents a distance of 55 NM on the earth. The same length on the chart will represent on the earth, at latitude 30°N, a distance of?

210 nm.

195 nm.

200 nm.

184 nm.

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

Along the great circle of tangency.

At the poles and the equator.

At the prime meridian.

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

50. A Mercator chart has a scale at the equator = 1 : 2 400 000.What is the scale at latitude 60°S?

1 : 2 300 000.

1 : 1 200 000.

1 : 3 600 000.

1 : 1 500 000.

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