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43 Cards in this Set
- Front
- Back
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What is the field manual for map reading and land navigation? |
Fm 3-25.26 |
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What are the basic colors of a map, and what does each color represent? |
Black- man made features Red-Brown- are combined to identify cultural features, and elevation Blue- water features Green- vegetation Brown- all relief features and elevation Red- cultural features Other- occasionally other colors can be used to show specific info |
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What are military symbols? |
Figures used to represent types of military organizations, installations, and activities |
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Where is the legend of the map found? |
Lower left margin |
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What are contour lines? |
Imaginary lines on the ground connecting equal elevation |
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What are 3 types of contour lines? |
Index, intermediate, and supplementary |
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How many mils are in one degree? |
17.7 |
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How many norths are there on a military map? |
3 True north Magnetic north Grid north |
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What must be done to a map before it can be used? |
It must be oriented |
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What are 5 major terrain features found on a map? |
Hill; ridge; valley; saddle; depression |
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What are 3 minor terrain features found on a military map? |
Draw; spur; cliff |
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What are 2 supplementary terrain features found on a map? |
Cut and fill |
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What is a map? |
A graphic representation of the earth surface drawn to scale as seen from above? |
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What is an azimuth? |
A horizontal angle, measured in a clockwise manner from a north base line expressing direction. |
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What is vertical distance? |
The distance between the highest and lowest point measured |
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What is the distance between grid lines on a combat map? |
1 kilometer or 1000 meters |
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How many mils are there in one circle? |
6400 mild in 360 degrees |
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Which north is used when using a military map? |
Magnetic north when using a compass and grid north when using the map |
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How would you hold a lensatic compass? |
Away from metal level and firm |
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Name 2 ways to hold a compass? |
Compass to cheek , and center hold |
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Are topographic symbols drawn to scale? |
No |
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What is back azimuth? |
The opposite direction of an azimuth |
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How do you figure out a back azimuth? |
Add 180 degrees if <180 Subtract 180 degrees if > 180 |
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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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What is a benchmark? |
Man made marker showing points of elevation |
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What does UTM stand for? |
Universal Transverse Mercator |
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The lensatic compass has a bezel ring; each click is equal to how many degrees? |
3 |
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How many times would tje bezel ring click if it were fully rotated? |
120 |
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Name 2 ways to orient a map? |
Use a compass and terrain association |
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The arrow on a compass always points what direction? |
Magnetic north |
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How many scales are there on a Compass, what are they? |
2 degrees and mils |
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What are the 4 quadrants on a map? |
Northeast, southeast, northwest, southwest |
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What are 3 elements for a land nav process known as dead reckoning? |
Known starting point, known location , and known azimuth |
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What is the name of the map system that the u.s. uses? |
UTM |
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The border Line around the edge of the map is called the What? |
Near line |
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Name the different slopes found on a map? |
Gentle; steep; concave; convex |
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You must find at least how many known locations on a map and the actual ground in order to plot your location accurately? |
At least 2 |
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What are the 3 main map sizes? |
Small, medium, and large |
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What are 2 methods of measuring an azimuth? |
Compass and protractor |
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How close will an 8 digit digit grid get you to your point? |
10 meters |
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How close will a 6 digit grid get you to your point |
100 meters |
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What would you use on a map to measure actual ground distance? |
The bar scale |
