Quiz Answer Key and Fun Facts
1. Nathaniel Bowditch wrote this authoritative text on marine navigation in 1802, and it's still in use today. What is it?
2. Cartographer Gerardus ________ first used the term "atlas" for a book of maps, and developed an accurate way to show the surface of a sphere on a flat, rectangular map with the least distortion.
3. Aboard U.S. Navy ships, enlisted navigation specialists are known as ________ .
4. A navigation device used to plot horizontal sextant angles on a chart to obtain a "fix" of the ship's location is a _____.
5. Large-area rotating ocean currents that are caused by prevailing winds and the Coriolis Effect are _____.
6. The determination of _____ at sea couldn't be readily determined until an accurate timepiece, the marine chronometer, was developed.
7. Although a _____ route follows the shortest distance between points on the globe, it is difficult to steer so ships usually break the route into a series of straight rhumb line sections.
8. A _____ is a simple hand-held device used to estimate the observer's distance from an object of known height; this instrument was also used in submarine periscopes.
9. A map of the sea bed and shoreline, used for marine navigation, is known as a _____.
10. Nautical charts that show the most detail of a small area, such as a port or internal waterway, are ____ scale charts.
Source: Author
wjames
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CellarDoor before going online.
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