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24 Cards in this Set
- Front
- Back
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All maps are considered to be documents that require what? |
Special handling. Maps are documents that must not fall into unauthorized hands. |
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What are the colors of a map, and what does each color represent? |
-black-indicates cultural(man made) features such as roads buildings surveyed spot elevations and all labels -Red-Brown- the colors of red and brown combined to identify cultural features, all relief features, non surveyed spot elevations, and contour lines on a red light readable map -Blue- water features such as lakes, streams, rivers, swamps, and drainage -Green- vegetation with military significance( i.e woods, orchards, vineyards) -Brown- all relief features and elevation on older maps, cultivated land on red light readable maps -Red- classifies cultural features, such as populated areas, roads and boundaries on older maps -Other- sometimes used to show special information |
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What are military symbols? |
Figures used to represent identity, size, locations, and movements of soldiers, military activities, and installations |
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Where is the legend of the map found? |
Lower left corner |
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What are contour lines? |
imaginary lines on the ground that represent elevation above and below sea level. all points on the contour line are the same elevation |
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What are the three types of contour lines? |
-Index -Intermediate -Supplementary |
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How many MILs are there in one degree? |
About 17.8 mils |
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What are the 5 major terrain features? |
-Hill -Valley -Ridge -Saddle -Depression |
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What are the 3 minor terrain features found on a military map? |
-Draw -Spur -Cliff |
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What are the 2 supplementary terrain features on a military map? |
-Cut -Fill |
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What is an azimuth? |
a horizontal angle, measured clockwise from a north baseline |
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Declination diagrams are unreliable for maps older than how many years? |
20 Years |
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How would you hold a lensatic compass? |
Away from metal, level and firm |
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Name two ways to hold a compass. |
-Compass-to-cheek method -Center-hold-method |
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Are topographic symbols drawn to scale? |
No |
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What do topographic symbols represent? |
Man made and natural features |
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What is a back azimuth? |
the opposite of the azimuth |
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What does a declination diagram show? |
It shows the angular relationship between magnetic north, grid north, and true north |
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What is the general rule for reading military grid coordinates? |
Right and Up
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How many sights does a compass have? |
2 |
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A click on the bezel ring of a lensatic compass is equal to how many degrees? |
3 |
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How close will an 8 digit grid get you to a point? |
10 meters |
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What does the term intersection mean? |
it is the location of an unknown point by successively occupying at least two known positions on the ground, then map sighting on the unknown location. |
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What does the term resection mean? |
it is the method of locations one's position on the map by determining the grid azimuth to at least 2 well defined locations that can be pinpointed on the map. |
