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Training > Land Nav > Flashcards

Land Nav Flashcards

1
Q

What is the Field Manual for map reading and land navigation?

A

FM 3-25.26

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2
Q

What are the basic colors of a map and what does each color represent?

A

Brown - identifies all relief features and elevation, such as contours on older edition maps, and cultivated land on red-light readable maps.
Black - Indicates cultural (man-made) features such as buildings and roads, surveyed spot elevations, and all labels.
Blue - Identifies hydrography or water features such as lakes, swamps, rivers, and drainage.
Red - Classifies cultural features, such as populated areas, main roads, and boundaries, on older maps.
Red-Brown - These colors are combined to identify cultural features, all relief features, non-surveyed spot elevations, and elevation, such as contour lines on red-light readable maps.
Green- Identifies vegetation with military significance, such as woods, orchards, and vineyards.

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3
Q

Figures used to represent types of military organizations, installations, and activities are called?

A

Military Symbols

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4
Q

Where is the Legend of the map found?

A

Lower left margin

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5
Q

What are the imaginary lines on the ground connecting equal elevation that represent high and low ground elevation?

A

Contour lines

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6
Q

What are the 3 types of contour lines?

A

Index, intermediate, and supplementary

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7
Q

How many Mils are in one degree?

A

17.7 miles

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8
Q

There are 3 versions of “North” on a military map (True/False)

A

True

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9
Q

The inside of the smallest closed concentric circle on a map indicates what feature?

A

Hilltop

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10
Q

What are 5 major terrain features found on a map?

A 
Hill
Ridge
Valley
Saddle 
Depression
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11
Q

What are the 3 minor terrain features found on a military map?

A

Draw
Spur
Cliff

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12
Q

What are the 2 supplementary terrain features found on a military map?

A

Cut

Fill

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13
Q

Name 2 ways to hold a compass

A

Compass to cheek method

Center hold method

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14
Q

Are topographic symbols drawn to scale?

A

No

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15
Q

In military symbols, what colors are used for map overlay and what do they represent?

A 
Blue - Friendly Forces
Red - Enemy Forces
Black - Boundaries
Yellow - Contaminated Area
Green - Engineer obstacles
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16
Q

What is the general rule for reading military grid coordinates?

A

Right and up

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17
Q

How many sights does a compass have?

A

2

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18
Q

A man-made marker showing points of elevation is called what?

A

Benchmark

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19
Q

What is the Field Manual for Operational Terms and Graphics?

A

FM 1-02

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20
Q

What are the 4 quadrants on a map?

A

Northeast
Southeast
Northwest
Southwest

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21
Q

The vertical distance between contour lines is called the contour level (True/False)

A

True

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22
Q

What are the three main map sizes?

A

Small
Medium
Large

23
Q

How close will an eight-digit grid get you to your point?

A

10 meters

24
Q

How close will a 6 digit grid coordinate get you to your point?

A

100 meters

25
Q

What shape and contour lines indicate a saddle?

A

A saddle is normally represent as an hourglass

26
Q

What are the contour lines that indicate a valley?

A

Contour lines forming a valley are U-shaped or V-shaped

27
Q

What are the contour lines that indicate a ridge?

A

Contour lines forming a ridge tend to be U-shaped or V-shaped. The end of the contour line points away from the high ground

28
Q

What shape are the contour lines that indicate a depression?

A

Depressions are represented by closed contour lines that have tick marks pointing toward low ground.

29
Q

What shape are the contour lines that indicate a draw?

A

They are U-shaped or V-shaped pointing toward the high ground.

30
Q

What shape are the contour lines that indicate a spur?

A

They are depicted with the U or V pointing away from high ground.

31
Q

What shape are the contour lines that indicate a cliff?

A

Cliffs are also shown by contour lines very close together and, in some instances, touching

32
Q

What must be done to a map before it can be used?

A

It must be oriented

33
Q

What is an azimuth?

A

A horizontal angle, measured in a clockwise manner from a north base line, expressing direction.

34
Q

What is the distance between grid lines on a combat map?

A

1 kilometer or 1000 meters

35
Q

How many miles are there in a circle?

A

6400 miles in 360 degrees

36
Q

How would you hold a lens attic compass?

A

Away from metal (weapons, electrical devices) level and firm

37
Q

How do you figure out a back azimuth?

A

Add 180 degrees if the azimuth is 180 degrees or less.

Subtract 180 degrees if the azimuth is 180 degrees or more.

38
Q

What is the declination diagram?

A

Shows the angular relationship between the magnetic north, grid north and true north

39
Q

What does UTM stand for?

A

Universal Transverse Mercator

40
Q

The lens attic compass has a bezel ring; each bezel ring click is equal to how many degrees?

A

3

41
Q

How many times would the bezel ring click if it were fully rotated?

A

120

42
Q

Name 2 ways to orient a map?

A

Use a compass and terrain association

43
Q

What does the term FLOT mean?

A

Forward Line of Troops

44
Q

What are the alternate colors on a map and what do they mean?

A

Gray - alternate color for brown
Yellow - built up areas
Pink - political boundaries

45
Q

What does the term intersection mean?

A

Finding the location of an unknown point by sighting two or more known points.

46
Q

What does the term resection mean?

A

Resection is the method of locating one’s position on a map by determining the grid azimuth to at least two well-defined locations that can be pinpointed on the map.

47
Q

What are the three elements for a land navigation process known as Dead Reckoning?

A

Known Starting point
Known Distance
Known Azimuth

48
Q

What is the name of the map system the US uses?

A

UTM

49
Q

Name 3 field expedient methods of determining direction

A

The Shadow-tip method
The watch method
The North Star method

50
Q

Name the different slopes found on a map

A

Gentle
Steep
Concave
Convex

51
Q

You must find at least how many known locations on a map and the actual ground in order to plot your location accurately?

A

At least 2

52
Q

What are the 2 methods of measuring an azimuth?

A

Compass and Protractor

53
Q

What would you use on a map to measure actual ground distance?

A

The bar scale

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