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53RD BOARD > FM 3-25.26 > Flashcards

FM 3-25.26 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

BLACK - indicates man made feature

RED-BROWN- the colors red brown identify cultural features, elevations such as countour lines readable in the map

BLUE- Identifies hydrography or water features

GREEN- Identifies vegetation

BROWN- all relief features and elevation

RED- classifies cultural features, such as populated areas, main roads, boundaries on older maps

Other- may be used to show special information.

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3
Q

What are military symbols?

A

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

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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 countour lines?

A

Imaginary lines on the ground connecting equal elevation, they represent high and low ground elevation

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6
Q

What are 3 types of countour lines ?

A

Index

Intermediate

Supplementary

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7
Q

How many mils in one degree?

A

17.7 mils

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8
Q

How many norths are there on a military map?

A

True north

Magnetic north

Grid north

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9
Q

What shape are the contour lines that indicate a hill?

A

Contour lines forming concentric circle

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10
Q

What shape are the contour line that indicate a saddle?

A

Represented as an hour glass

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11
Q

What shape are the contour lines that indicate a valley?

A

Forming a ridge to be U-shaped or V-shaped , contour lines point away from high ground

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12
Q

What are contour lines that indicate depression?

A

Represented by closed contour lines that have tick marks pointing toward low ground

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13
Q

What shape are contour lines that indicate a draw?

A

U-shaped or V-shaped, pointing toward high ground.

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14
Q

What shape are the contour lines that indicate a spur?

A

U or V shaped, pointing away from high ground

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15
Q

What shape are the contour lines that indicate a cliff?

A

Very close together, and in some instances touching each other

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16
Q

What shape are the contour lines that indicate a cut?

A

Lines extends the length of the cut and has tick marks that extend from the cut line to the roadbed.

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17
Q

What are the contour lines that indicate a fill?

A

Contour line extends the length of the filled area and has tick marks that point toward lower ground

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18
Q

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

A

It must be oriented

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19
Q

What are 5 major terrain features?

A 
Hill 
Valley 
Ridge 
Valley 
Saddle 
Depression
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20
Q

What are 3 minor terrain features?

A

Draw
Spur
Cliff

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21
Q

What are two supplementary terrain features found on a military map?

A

Cut

Fill

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22
Q

What is a map?

A

A map is a graphic representation of a portion of the earths surface drawn to scale as seen from above

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23
Q

What is an azimuth?

A

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

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24
Q

What is vertical distance?

A

Distance between highest and lowest points measured

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25
Q

What is a contour interval?

A

The vertical distance between adjacent contour lines on a map

26
Q

What is distance between grid lines on a combat map?

A

1 kilometer or 1000 meters

27
Q

How many mils are there in a circle?

A

6400 mils in 360 degrees

28
Q

Which north is used when using a military map?

A

Magnetic north when using a compass, and grid north when using the map

29
Q

How would you hold a lensatic compass?

A

Away from metal, level and firm

30
Q

Name two ways to hold a compass

A

Cheek method

Centerhold method

31
Q

What do togographic symbols represent?

A

Man made and natural features

32
Q

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

A

Blue- friendly forces
Red- enemy forces
Black- boundaries
Yellow- contaminated area both friendly and enemy
Green- engineer obstacles, both friendly and enemy

33
Q

What is a back azimuth?

A

The opposite direction of an azimuth.

34
Q

How do you figure out a back azimuth?

A

Add 180 degrees is azimuth is 180 degrees or less

Subtract if azimuth is 180 degrees or more

35
Q

What is the general rule for reading military grid coordinates?

A

Right and up

36
Q

How many sights does a compass have?

A

2

37
Q

What is a benchmark?

A

Man made marker showing points of elevation.

38
Q

What are parallels of latitude?

A

Measured distances going north or south of the equator

39
Q

What does UTM stand for?

A

Universal Transverse Mercator

40
Q

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

A

120

41
Q

Large cities on a map are represented by what color?

A

Black

42
Q

Name two ways to orient a map?

A

Use compass and terrain association

43
Q

The arrow on a compass always points what direction?

A

Magnetic north

44
Q

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

A

Gray alternate color for brow

Yellow built up areas

Pink- political boundaries

45
Q

What is longitude?

A

Imaginary lines that run north to south originating in Greenwich, England and measured in degrees

46
Q

What is topographic map?

A

Portrays terrain and land forms in measurable ways

47
Q

What is a small scale map?

A

Maps with scales of 1:1,000,000

48
Q

What is a medium scale map?

A

Maps with scale larger than 1:1,000,000 but smaller than 1:75,000

49
Q

What is large scale map?

A

Maps with scales of 1:75,000 and larger

50
Q

What does the term intersection mean?

A

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

51
Q

Why is a map important?

A

A Map can give you accurate distances, locations, and heights

52
Q

What does the term resection mean?

A

The method of locating ones position on a map by determining grid azimuth to atleast two well defined locations.

53
Q

If you find a symbol on a map that is unknown to you, where would you look?

A

The marginal data located on the outside lower portion of the map

54
Q

How many scales are there on a compass, what are they?

A

Degrees

Mils

55
Q

What are the 4 quadrants on a map?

A

Northeast
Southeast
Northwest
Southwest

56
Q

What are three elements for land a navigation process known as dead reckoning ?

A

Known starting point
Known distance
Known azimuth

57
Q

What is the name of the map that the U.S uses?

A

UTM

58
Q

On a pedantic compass there are two rings, an outer black ring and inner red ring, what are they?

A

The inner red ring is to find degrees , and the outer black ring is to find mils

59
Q

Name 3 field expedient methods of determining direction

A

The shadow tip method, the watch method, and the North Star method.

60
Q

The border line around the edge of the map is called the?

A

Neat line

61
Q

Name the different slopes found on a map?

A

Gentle
Steep
Concave
Convex

53RD BOARD (5 decks)

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