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Map reading
| Question | Answer |
|---|---|
| What is the Field Manual for map reading and land navigation? | FM 3-25.26 |
| What are the basic colors of a map, and what does each color represent? | Black- made, Red-Brown- contour lines on red-light readable maps, Blue- water, Green-vegetation, Brown- contours on older edition maps, Red- populated areas, Other- special information |
| What are military symbols? | Figures used to represent types of military organizations, installations, and activities |
| Where is the legend on a map found? | In the lower left margin |
| What are contour lines? | imaginary lines representing high and low elevation. |
| What are 3 types of contour lines? | Index, intermediate, supplementary |
| How many Mils are in one Degree? | 17.7 mils |
| How many Norths are there on a military map? | Three: Magnetic north, true north, and Grid north |
| What must be done to a map before it can be used? | It must be oriented. |
| What are 5 major terrain features found on a map? | Hill, Valley, Ridge, Saddle, Depression |
| What are the 3 minor terrain features found on a map? | Draw, Spur, Cliff |
| What are the 2 supplementary terrain features found on a military map? | Cut, Fill |
| What is a map? | Graphic representation of a portion of the earth's surface drawn to scale, as seen from above |
| What is an azimuth? | A horizontal angle, measured in a clockwise manner from a north base line, expressing direction |
| What is a vertical distance? | The distance between two highest and lowest points measured. |
| What is a contour interval? | The vertical distance between adjacent contour lines on a map |
| What is the distance between grid lines on a combat map? | 1 kilometer or 1000 meters |
| How many mils are there in a circle? | 6400 mils in 360 degrees |
| Which north is used when using a military map? | Magnetic north when using a compass, and grid north when using the map. |
| How would you hold a lensatic compass? | Away from metal, level and firm |
| Name two ways to hold a compass? | Compass-to-Cheek Method, and Center-Hold Method |
| Are topographic symbols drawn to scale? | No |
| What do topographic symbols represent? | Man-made and natural features |
| In military symbols, what colors are used for a map overlay and what do they represent? | Blue- friendly forces, Red- Enemy forces, Black- boundaries, Yellow- Contaminated area both friendly and enemy, Green- Engineer obstacles, both friendly and enemy |
| What is a back azimuth? | The opposite direction of an azimuth. |
| How do you figure out a back azimuth? | add 180 degrees if the azimuth is 180 degrees or less; subtract 180 degrees if the azimuth is 180 degrees or more |
| What is a declination diagram? | Shows the angular relationship between the magnetic north, grid north and true north |
| What is the general rule for reading military grid coordinates? | Right and Up |
| How many sights does a compass have? | 2 |
| What is a benchmark? | A man-made marker showing points of elevation |
| What are parallels of latitude? | Measured distances going north or south of the equator |
| What is an aerial photograph? | images taken from an airborne vehicle |
| What does UTM stand for? | Universal Transverse Mercator |
| The lensatic compass has a bezel ring; each bezel ring click is equal to how many degrees? | 3 |
| How many times would the bezel ring click if it were fully rotated? | 120 |
| Large cities on a map are represented by what color? | Black |
| Name two ways to orient a map? | Use a compass and terrain association |
| What is the Field Manual for Operational Terms and Graphics? | FM 1-02 |
| The arrow on a compass always points what direction? | Magnetic north |
| What does the term FLOT mean? | Forward Line Of Troops |
| What are the alternate colors on a map and what do they mean? | Gray- Alternate color for brown, Yellow- built up areas, and pink- political boundaries |
| What is longitude? | Imaginary lines that run north to south originating in Greenwich, England and measured in degrees |
| Whats a topographic map? | Portrays terrain and land forms in a measurable way as well as horizontal features of the positions represented |
| If you find a symbol on a map that is unknown to you, where would you look? | The marginal data, located on the outside lower portion of the map |
| How many scales are there on a compass, what are they? | There are two: Degrees and Mils |
| What are the 4 quadrants on a map? | Northeast, Southeast, Northwest, Southwest |
| What are the three elements for a land navigation process known as Dead Reckoning? | Known starting point, Known distance, known azimuth |
| What is the feature that makes the lensatic compass work well at night? | The dials and needles are luminious |
| What is a polar coordinate? | Plotting or locating an unknown point using an azimuth and a distance from a known starting point |
| What is the name of the map system that the U.S. uses? | UTM |
| On a lensatic compass there are two rings, an outer black ring and an inner red ring, what are they used for? | The inner red ring is used to find degrees, and the outer black ring is used to find mils |
| Name 3 field expedient methods of determining direction | The shadow-tip method, the watch method, and the North Star method |
| What is a contour level? | It is the vertical distance between contour lines. The amount of the contour level is located in the Marginal Information on the map |
| The border line around the edge of the map is called the what? | Neat line |
| Name the different slopes found on a map | Gentle, Steep, Concave, Convex |
| 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 |
| What are the three main map sizes? | Small, medium and large |
| What are two methods of measuring an azimuth? | Compass and a protractor |
| How close will an eight-digit grid get you to your point? |
Created by:
DesK
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