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What FM covers map reading and land navigation?
FM 3-25.26
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What is a map?
A graphic representation of the Earth's surface drawn to scale as seen from above
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How many map scales are there?
Three: small, medium, and large
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Name four types of maps
Topographic, planimetric, photomap, terrain model
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What is marginal information?
Information about the map's use, size, and area
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Where is the map sheet name found?
Center of upper margin, and either left or right side of lower margin
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What is a declination diagram?
It shows the angular relationships of true north, grid north, and magnetic north
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What colors are found on a map?
Black, blue, green, brown, and red
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What do the colors on a map stand for?
- Black - Indicates man-made feature, such as buildings and roads
- Blue - Identifies water features
- Green - Vegetation
- Brown - Identifies all relief features and elevation, as well as contour lines on older maps
- Red - Indicates populated areas
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What type of map system does the US military use?
The Universal Transverse Mercator (UTM)
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How close will you get to a location with a 6-digit coordinate?
100 meters
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How close will you get to a location with a 8-digit coordinate?
10 meters
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How close will you get to a location with a 10-digit coordinate?
1 meter
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Name three types of contour lines
Index, intermediate, and supplementary
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Name the five major terrain features on a map
Hill, ridge, valley, saddle, ridge, and depression
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Name the five minor terrain feature on a map
Draw, spur, cliff, cut, and fill
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What are the two most commonly used compasses in the Army?
Lensatic and artillery
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How many degrees are on a compass?
360
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What are two methods for holding a compass?
The centerhold technique and compass to cheek technique
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Define magnetic declination
The variation of the true north from the magnetic north
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