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Question Bank
Questions for SCALE
Answer the following questions
Test Mode
Training Mode
1. 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?
333 mm.
467 mm.
159 mm.
444 cm.
2. 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?
245 mm.
263 cm.
222 mm.
276 mm.
3. 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?
6.7 cm.
600 cm.
76.6 cm.
66.7 cm.
4. 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 : 6 500 000.
1 : 5 500 000.
5. On a direct Mercator projection, at latitude 45° North, a certain length represents 79 NM. At latitude 30° North, the same length represents approximately?
93 nm.
78 nm.
97 nm.
65 nm.
6. 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'?
25 nm.
20 nm.
22 nm.
29 nm.
7. 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?
146.5 nm.
125.2 nm.
135.4 nm.
132.5 nm.
8. 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?
125 mm.
113 cm.
133 mm.
100 mm.
9. 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.
50 nm.
55 nm.
10. 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 : 1 500 000.
1 : 2 000 000.
11. 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?
45 nm.
48 nm.
37 nm.
40 nm.
12. 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.
200 nm.
251 nm.
13. What is the distance between longitudes 179°E and 175°W on direct Mercator chart with a scale of 1 : 15 000 000 at the equator?
10 mm.
44 mm.
25 mm.
33 cm.
14. 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 : 2 600 000.
1 : 12 500 000.
1 : 6 000 000.
1 : 27 300 000.
15. Approximately how many nautical miles correspond to 25 cm on a map with a scale of 1 : 3 000 000?
450 nm.
430 nm.
405 nm.
400 nm.
16. A straight line on a chart 4.89 long represents 100 NM. The scale of this chart is approximately?
1 : 4 000 000.
1 : 2 000 000.
1 : 5 500 000.
1 : 3 500 000.
17. A Mercator chart has a scale at the equator = 1 : 3 000 000. What is the scale at latitude 60°S?
1 : 3 400 000.
1 : 1 700 000.
1 : 1 500 000.
1 : 2 000 000.
18. A straight line drawn on a chart measures 4.63 cm and represents 125 NM. The chart scale is?
1 : 4 500 000.
1 : 6 500 000.
1 : 5 000 000.
1 : 6 000 000.
19. 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?
120 nm.
110 nm.
125 nm.
100 nm.
20. Given: Chart scale 1 : 3 000 000. The chart distance between two points is 24 centimetres. Earth distance is approximately?
3.89 nm.
38.9 nm.
839 nm.
389 nm.
21. In a navigation chart a distance of 49 NM is equal to 7 cm. The scale of the chart is approximately?
1 : 2 300 000.
1 : 1 600 000.
1 : 2 000 000.
1 : 1 300 000.
22. 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 : 10 000 000.
1 : 125 000.
1 : 6 000 000.
1 : 26 050 000.
23. 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?
163 cm.
159 mm.
176 mm.
145 mm.
24. 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'?
10 nm.
12 nm.
15 nm.
22 nm.
25. Approximately how many nautical miles correspond to 9 cm on a map with a scale of 1 : 5 000 000?
240 nm.
243 nm.
256 nm.
256 nm.
26. At 60°N the scale of a direct Mercator charts is 1 : 2 750 000. What is the scale at the equator?
1 : 1 500 000.
1 : 2 500 000.
1 : 5 500 000
1 : 3 500 000.
27. Given: Chart scale 1 : 2 000 000. The chart distance between two points is 4 centimetres. Earth distance is approximately?
43 nm.
30 nm.
55 nm.
50 nm.
28. Approximately how many nautical miles correspond to 10 cm on a map with a scale of 1 : 5 000 000?
290 nm.
240 nm.
270 nm.
256 nm.
29. At 60°N the scale of a direct Mercator chart is 1 : 4 000 000. What is the scale at the equator?
1 : 6 000 000.
1 : 4 500 000.
1 : 12 000 000.
1 : 8 000 000.
30. 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?
133 mm.
125 cm.
111 mm.
100 mm.
31. At 60° N the scale of a direct Mercator chart is 1: 3 500 000. What is the scale at the equator?
1 : 3 500 000.
1 : 500 000.
1 : 4 500 000.
1 : 7 000 000.
32. 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.
99 nm.
120 nm.
128 nm.
33. 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 : 2 000 000.
1 : 4 500 000.
1 : 5 000 000.
34. 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.
35. The total length of the 70°N parallel of latitude on a direct Mercator chart is 95 cm. What is the approximate scale of the chart at latitude 30°S?
1 : 32 250 000.
1 : 26 000 000.
1 : 25 500 000.
1 : 17 250 000.
36. Approximately how many nautical miles correspond to 7 cm on a map with a scale of 1 : 500 000?
22 nm.
19 nm.
17 nm.
29 nm.
37. 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?
259 nm.
220 nm.
265 nm.
210 nm.
38. 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 : 5 000 000.
1 : 6 000 000.
1 : 600 000.
39. Approximately how many nautical miles correspond to 12 cm on a map with a scale of 1 : 2 000 000?
130 cm.
240 nm.
200 nm.
130 nm.
40. 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.
45 nm.
86 nm.
90 nm.
41. 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?
620 nm.
580 nm.
605 nm.
596 nm.
42. The scale on Lambert's conformal conic chart?
Is contstant.
Is constant along a parallel of latitude.
Is constant along a meridian of longtitude.
Varies slightly as a function of longitude and latitude.
43. 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?
97 nm.
78 nm.
68 nm.
64 nm.
44. 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?
100 nm.
78 nm.
65 nm.
68 nm.
45. 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 : 3 500 000.
1 : 4 000 000
1 : 4 500 000
1 : 5 000 000
46. Approximately how many nautical miles correspond to 13 cm on a map with a scale of 1 : 2 000 000?
130 nm.
100 nm.
140 nm.
150 nm.
47. 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?
333 mm.
300 mm.
313 cm.
325 mm.
48. 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 : 4 500 000.
1 : 3 500 000.
1 : 5 000 000.
1 : 4 000 000.
49. 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 : 26 500 000.
1 : 12 500 000.
1 : 16 500 000.
1 : 23 500 000.
50. Approximately how many nautical miles correspond to 35 cm on a map with a scale of 1 : 500 000?
80 nm.
94.5 nm.
85.5 nm.
90 nm.
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