Marine Navigation

15 Points Per Correct Answer - No time limit  

1. Nathaniel Bowditch wrote this authoritative text on marine navigation in 1802, and it's still in use today. What is it? Navigation for Dummies Nautical Almanac American Practical Navigator Sight Reduction Tables

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. Mercator Depardieu Vespucci Visscher

3. Aboard U.S. Navy ships, enlisted navigation specialists are known as ________ . Bosun's Mates Aerographers Quartermasters Navigators

4. A navigation device used to plot horizontal sextant angles on a chart to obtain a "fix" of the ship's location is a _____. three-arm protractor parallel motion protractor quadrant sextant

5. Large-area rotating ocean currents that are caused by prevailing winds and the Coriolis Effect are _____. vortices gyres whirlpools eddies

6. The determination of _____ at sea couldn't be readily determined until an accurate timepiece, the marine chronometer, was developed. longitude latitude watches Greenwich Mean Time

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. Azmithual equidistant Bee-line Current sailing Great circle

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. rangefinder stadimeter alidade theodolite

9. A map of the sea bed and shoreline, used for marine navigation, is known as a _____. water map atlas nautical chart aeronautical chart

10. Nautical charts that show the most detail of a small area, such as a port or internal waterway, are ____ scale charts. large scalene coastal small