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Land Navigation

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Updated 2009-05-17 10:57

Facts

Question Answer
1.What is the Field Manual for map reading and land navigation? FM 3-25.26
3.What are military symbols?Figures used to represent types of military organizations, installations, and activities
4.Where is the Legend of the map found?Lower left margin
5.What are contour lines?Imaginary lines on the ground connecting equal elevation, they represent high and low ground elevation.
6.What are 3 types of contour lines? Index Intermediate Supplementary
7.How many Mils are in one Degree?17.7 mils
9.What shape are the contour lines that indicate a hill?A hill is shown on a map by contour lines forming concentric circles. The inside of the smallest closed circle is the hilltop.
10.What shape are the contour lines that indicate a saddle?A saddle is normally represented as an hourglass
11.What shape are the contour lines that indicate a valley?Contour lines forming a valley are either U-shaped or V-shaped.
12.What shape are the contour lines that indicate a Ridge?Contour lines forming a ridge tend to be U-shaped or V-shaped. The closed end of the contour line points away from high ground.
14.What shape are the contour lines that indicate a draw?The contour lines depicting a draw are U-shaped or V-shaped, pointing toward high ground.
15.What shape are the contour lines that indicate a spur?Contour lines on a map depict a spur with the U or V pointing away from high ground.
16.What shape are the contour lines that indicate a cliff?Cliffs are also shown by contour lines very close together and, in some instances, touching each other.
17.What shape are the contour lines that indicate a cut?This contour line extends the length of the cut and has tick marks that extend from the cut line to the roadbed, if the map scale permits this level of detail.
18.What shape are the contour lines that indicate a fill?This contour line extends the length of the filled area and has tick marks that point toward lower ground. If the map scale permits, the length of the fill tick marks are drawn to scale and extend from the base line of the fill symbol.
19.What must be done to a map before it can be used?It must be oriented.
20.What are 5 major terrain features found on a map?HillRidgeValleySaddleDepression
21.What are the 3 minor terrain features found on a military map? DrawSpurCliff
22.What are the 2 supplementary terrain features found on a military map?CutFill
23.What is a map?A map is a graphic representation of a portion of the earth’s surface drawn to scale, as seen from above.
24.What is an azimuth?A horizontal angle, measured in a clockwise manner from a north base line, expressing direction.
25.What is vertical distance?The distance between the highest and lowest points measured.
26.What is a contour interval?The vertical distance between adjacent contour lines on a map.
27.What is the distance between grid lines on a combat map?1 kilometer or 1000 meters
28.How many mils are there in a circle?6400 mils in 360 degrees
29.Which north is used when using a military map?Magnetic north when using a compass, and grid north when using the map
30.How would you hold a lensatic compass?Away from metal (weapons, electrical devices), level and firm
31.Name two ways to hold a compass?Compass-to-CheekMethodCenter-Hold Method
32.Are topographic symbols drawn to scale?No
33.What do topographic symbols represent?Man-made and natural features
35.What is Back Azimuth?The opposite direction of an azimuth.
36.How do you figure out a back azimuth?To obtain a back azimuth from an azimuth, add 180 degrees if the azimuth is 180 degrees or less; subtract 180 degrees if the azimuth is 180 degrees or more
37.What is a declination diagram?Shows the angular relationship between the magnetic north, grid north and true north
38.What is the general rule for reading military grid coordinates?Right and UP
39.How many sights does a compass have?2
40.What is a benchmark?A man-made marker showing points of elevation
41.What are parallels of latitude?Measured distances going north or south of the equator
42.What is an aerial photograph?An aerial photograph is any photograph taken from an airborne vehicle (aircraft, drones, balloons, satellites, and so forth)
43.What does UTM stand for?Universal Transverse Mercator
44.The lensatic compass has a bezel ring; each bezel ring click is equal to how many degrees?3
45.How many times would the bezel ring click if it were fully rotated?120
46.Large cities on a map are represented by what color?Black
47.Name two ways to orient a map?Use a compass and terrain association
48.What is the Field Manual for Operational Terms and Graphics?FM 1-02
49.The arrow on a compass always points what direction?Magnetic north
50.What does the term FLOT mean?Forward Line Of Troops
51.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
52.What is longitude?Imaginary lines that run north to south originating in Greenwich, England and measured in degrees
53.What s a topographic map?Portrays terrain and land forms in a measurable way as well as horizontal features of the positions represented
54.What is a small-scale map?Those maps with scales of 1:1,000,000 and smaller are used for general planning and for strategic studies. The standard small-scale map is 1:1,000,000. This map covers a very large land area at the expense of detail.
55.What is a medium-scale map?Those maps with scales larger than 1:1,000,000 but smaller than 1:75,000 are used for operational planning. They contain a moderate amount of detail, but terrain analysis is best done with the large-scale maps described below. The standard medium-scale map is 1:250,000. Medium scale maps of 1:100,000 are also frequently encountered.
56.What is a large-scale map?Those maps with scales of 1:75,000 and larger are used for tactical, administrative, and logistical planning. These are the maps that you as a soldier or junior leader are most likely to encounter. The standard large-scale map is 1:50,000; however, many areas have been mapped at a scale of 1:25,000.
57.What does the term intersection mean?Finding the location of an unknown point by sighting two or more known points
58.Why is a map so important?When used correctly, a map can give you accurate distances, locations and heights, best routes key terrain features and cover and concealment information.
62.What are the 4 quadrants on a map?Northeast Southeast Northwest Southwest
63.What are the three elements for a land navigation process known as Dead Reckoning?Known starting point Known distance Known azimuth
64.What is the feature that makes the lensatic compass work well at night?The dials and needles are luminous
65.What is a polar coordinate?Plotting or locating an unknown point using an azimuth and a distance from a known starting point
66.What is the name of the map system that the U.S. uses?UTM
67.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
70.The border line around the edge of the map is called the what?Neat Line
71.Name the different slopes found on a map.Gentle Steep Concave Convex
72.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
73.What are the three main map sizes?SmallMediumLarge
74.What are two methods of measuring an azimuth?Compass and a protractor
75.How close will an eight-digit grid get you to your point?10 meters
76.How close will a six-digit grid coordinate get you to your point?100 meters
77.What would you use on a map to measure actual ground distance?The bar scale
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