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Question Bank
Questions for SCALE
Answer the following questions
Test Mode
Training Mode
1. The total length of the 75°N parallel of latitude on a direct Mercator chart is 115 cm. What is the approximate scale of the chart at latitude 30°S?
1 : 30 000 000.
1 : 6 000 000.
1 : 28 000 000.
1 : 12 500 000.
2. 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 : 4 500 000.
1 : 3 500 000.
1 : 5 000 000.
1 : 2 000 000.
3. 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 : 7 000 000.
1 : 500 000.
4. Approximately how many nautical miles correspond to 10 cm on a map with a scale of 1 : 5 000 000?
290 nm.
240 nm.
256 nm.
270 nm.
5. Approximately how many nautical miles correspond to 7 cm on a map with a scale of 1 : 500 000?
29 nm.
19 nm.
17 nm.
22 nm.
6. 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?
65 nm.
68 nm.
100 nm.
78 nm.
7. 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?
45 nm.
31 nm.
20 nm.
25 nm.
8. Given: Chart scale 1 : 200 000. The chart distance between two points is 12 centimetres. Earth distance is approximately?
20 nm.
25 nm.
13 nm.
10 nm.
9. 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.
125 mm.
100 mm.
10. 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?
125 nm.
120 nm.
100 nm.
110 nm.
11. Given: Chart scale 1 : 5 000 000. The chart distance between two points is 10 centimetres. Earth distance is approximately?
230 nm.
270 nm.
255 nm.
243 nm.
12. Given: Chart scale 1 : 250 000. The chart distance between two points is 4 centimetres. Earth distance is approximately?
5.4 nm.
6.5 nm.
5.0 nm.
3.0 nm.
13. A Mercator chart has a scale at the equator = 1 : 2 400 000.What is the scale at latitude 60°S?
1 : 3 600 000.
1 : 1 200 000.
1 : 1 500 000.
1 : 2 300 000.
14. 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?
64 nm.
78 nm.
68 nm.
97 nm.
15. Apprximately how many nautical miles correspond to 15 cm on a map with a scale of 1 : 2 000 000?
140 nm.
162 nm.
156 nm.
130 nm.
16. In a navigation chart a distance of 49 NM is equal to 7 cm. The scale of the chart is approximately?
1 : 1 600 000.
1 : 1 300 000.
1 : 2 000 000.
1 : 2 300 000.
17. At 60° N the scale of a direct Mercator chart is 1 : 3 000 000. What is the scale at the equator?
1 : 6 000 000.
1 : 12 000 000.
1 : 4 500 000.
1 : 5 000 000.
18. A straight line on a chart 4.89 cm long represents 185 NM. The scale of this chart is approximately?
1 : 5 500 000.
1 : 6 000 000.
1 : 6 500 000.
1 : 7 000 000.
19. In a navigation chart a distance of 55 NM is equal to 7 cm. The scale of the chart is approximately?
1 : 1 600 000.
1 : 2 300 000.
1 : 2 700 000.
1 : 1 500 000.
20. On a direct Mercator projection, at latitude 45° North, a certain length represents 70 NM. At latitude 40° North, the same length represents approximately?
76 nm.
45 nm.
90 nm.
86 nm.
21. 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 : 25 500 000.
1 : 17 250 000.
1 : 32 250 000.
1 : 26 000 000.
22. 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.
45 nm.
40 nm.
48 nm.
23. 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 : 3 200 000.
1 : 2 300 000.
1 : 2 000 000.
1 : 1 500 000.
24. The nominal scale of a Lambert conformal conic chart is the?
Constant at all points on the chart.
Scale at the parallel of origin.
Scale at the poles.
Scale at the standard parallels.
25. 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?
210 nm.
200 nm.
251 nm.
125 nm.
26. 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.
265 nm.
220 nm.
259 nm.
27. Approximately how many nautical miles correspond to 12 cm on a map with a scale of 1 : 2 000 000?
200 nm.
130 nm.
130 cm.
240 nm.
28. Given: Chart scale 1 : 2 000 000. The chart distance between two points is 4 centimetres. Earth distance is approximately?
50 nm.
55 nm.
30 nm.
43 nm.
29. A Mercator chart has a scale at the equator = 1: 3 704 000. What is the scale at latitude 60 °S?
1 : 1 852 000.
1 : 2 000 000.
1 : 1 408 000.
1 : 1 500 000.
30. 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.
128 nm.
120 nm.
115 nm.
31. A straight line drawn on a chart measures 4.5 cm and represents 125 NM. The chart scale is?
1 : 6 200 000.
1 : 6 200 000.
1 : 4 400 000.
1 : 5 100 000.
32. 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?
76.6 cm.
600 cm.
66.7 cm.
6.7 cm.
33. Approximately how many nautical miles correspond to 20 cm on a map with a scale of 1 : 2 000 000?
200 nm.
130 nm.
240 nm.
216 nm.
34. 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.
75° N or S.
30° N or S.
60° N or S.
35. 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 : 26 050 000.
1 : 6 000 000.
1 : 125 000.
36. 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 : 5 000 000.
1 : 4 000 000.
1 : 3 500 000.
37. At 60°N the scale of a direct Mercator chart is 1 : 4 000 000. What is the scale at the equator?
1 : 12 000 000.
1 : 8 000 000.
1 : 6 000 000.
1 : 4 500 000.
38. 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?
33 cm.
44 mm.
10 mm.
25 mm.
39. 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 : 4 000 000
1 : 3 500 000.
1 : 5 000 000
1 : 4 500 000
40. 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.
41. The scale on Lambert's conformal conic chart?
Varies slightly as a function of longitude and latitude.
Is constant along a meridian of longtitude.
Is contstant.
Is constant along a parallel of latitude.
42. 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.
313 cm.
325 mm.
300 mm.
43. 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.
596 nm.
605 nm.
44. On a Direct Mercator chart at latitude 15°S, 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?
122.3 nm.
156.5 nm.
135.4 nm.
100.2 nm.
45. 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 : 25 000 000.
1 : 125 000.
1 : 6 000 000.
1 : 2 900 000.
46. 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 : 5 000 000.
1 : 600 000.
1 : 12 000 000.
47. 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.
20 nm.
29 nm.
25 nm.
48. A straight line drawn on a chart measures 4.63 cm and represents 150 NM. The chart scale is?
1 : 6 000 000.
1 : 5 000 000.
1 : 4 500 000.
1 : 6 500 000.
49. 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.
100 mm.
133 cm.
89 mm.
50. 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.
256 nm.
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