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41 Cards in this Set
- Front
- Back
What are the colors on a military map?
What do they represent? |
Black-Cultural man made features
Red-Populated areas, roads Blue- Hydrography Green-Vegetation Brown-All releif and elevation features Red/Brown-All cultural features on a red light readable map |
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Where is the legend found on a map?
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Lower left corner
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What are the 3 types of contour lines?
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Index
Intermidiate Supplementary |
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What are countour lines?
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Imaginary lines drawn on a map to designate releif and elevation changes
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What is a map?
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A graphic representation of a portion of the Earths surface drawn to scale
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How many norths are there? What are they?
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Magnetic North
True North Grid North |
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What are the 5 Major terrain features on a map?
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Ridge
Valley Depression Hill Saddle |
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What are the 3 minor terrain features?
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Cliff
Draw Spur |
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What are the 2 supplementary terrain features?
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Cut
Fill |
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What is an azimuth?
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A horizontal angle measured clockwise from a baseline north
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Which north is used when using a military map?
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Grid North for a map
Magnetic North with a compass |
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Name 2 ways to hold a compass?
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Compass to cheek
Centerhold |
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What is a back Azimuth? How do you calculate it?
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A Back Azimuth is the opposite of an Azimtuh. Less than 180 degress add 180, more than 180 degrees subtract 180.
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What is a declination diagram?
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A tool on a map that shows the relationship between the three norths (true,grid,magnetic)
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What are two ways to orient a map?
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Compass, terrain association
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What is an intersection?
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Plotting an unknown point by successfully occupying at least 2 points and shooting an intersecting Azimuth
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What is resection?
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Plotting your point by obtaining a back Azimuth from at least two known points
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What are three sizes of military maps?
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Small-1:1,000,000 General and Strategic
Medium-1:1,000,000 to 1:75,000 Operational Large- Larger than 1:75,000, Tactical, adminstrative |
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How many scales are on a compass?
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Degrees (red) and Mils (black)
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Name 3 field expedient methods for determining direction?
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Watch, Shadow Tip, North Star
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What are the 4 types of slopes on a map?
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Concave
Convex Steep Gentle |
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What is a polar coordinate?
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A direction and distance to a particular point
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How close will a 8 digit code get you to a point?
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10 meters
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How close will a six digit coordinate get to a point
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100 meters
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What would you use on a map to measure distance?
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The Bar Scale
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What are the 2 methods of measuring an azimuth?
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Compass and a protractor
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What would you use on a map to measure distance?
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The bar scale
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What is a benchmark?
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A man-made marker showing elevation
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What are parallels of latitude
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Measured distances going north-south of the equator
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What does UTM stand for?
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Universal Transverse Mercator
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What is the distance between grid lines on a combat map?
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One klick, 1 kilometer,
1000 meters |
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What are the shape of countour lines indicating a cliff?
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Contour lines very close together or touching each other
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What do the contour lines look like on a spur?
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Contour lines on a spur look like a U or V pointing away from high ground
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What shape are contour lines for a draw?
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Draws look like a U or V pointing towards high ground
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What shape are the contour lines indicating a depression?
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Closed contour lines with tick marks pointing towards low ground
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What shape do contour lines form to represent a Ridge?
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They are U or V shaped with the closed end pointing away from high ground
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What shape do contour lines form when representing a valley?
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Usually U or V shaped
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What shape are contour lines representing a saddle?
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Normally as an hourglass
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What shape are contour lines representing a hill?
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Closed concentric circles
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What is a contour interval? Where is it found?
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The distance between contour lines, in the marginal information
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What is the general rule for reading a military map?
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Right and Up
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