Land navigation Flashcards

1
Q

How do you convert Kilometers to Miles?

A

by multiplying the kilometers by 0.6

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2
Q

How do you convert Miles to Kilometers?

A

By multiplying miles by kilometers

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3
Q

What are the 3 North’s?

A

Grid North, Magnetic North, True North

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4
Q

What manual covers Land navigation and Map reading?

A

TC 3-25.26

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5
Q

How many degrees are in a circle?

A

360º

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6
Q

Define back azimuth

A

The opposite direction of an azimuth

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7
Q

What is the back azimuth of 360º?

A

180º

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8
Q

What are the two types of compasses?

A

Lensatic and M2 artillery compass

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9
Q

One click of the bezel ring on the lensatic compass is equal to how many degrees?

A

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10
Q

What are two ways to hold a compass?

A

Compass to cheek and centerhold

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11
Q

Name 3 field expedient methods of Land Navigation

A

Shadow tip, watch, stars

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12
Q

What star is used in the Northern Hemisphere for direction?

A

The North Star

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13
Q

What star is used in the Southern Hemisphere for direction?

A

The Southern Cross

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14
Q

What are the 6 basic colors of a map?

A

Brown, Blue, Black, Green, Red, Red-Brown

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15
Q

What does Black represent?

A

Man made features

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16
Q

What does Red-Brown represent?

A

Contour lines

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17
Q

What does Green represent?

A

Vegetation

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18
Q

What does Blue represent?

A

Water features

19
Q

What does Red represent?

A

Cultural features, popular areas, main roads

20
Q

What does Brown represent?

A

Relief features and elevation

21
Q

How do you read coordinates on a map?

A

Right and Up

22
Q

How close will a 4 digit grid coordinate bring you to your target?

A

1,000 meters

23
Q

How close will a 6 digit grid coordinate bring you to your target?

A

100 meters

24
Q

How close will a 8 digit grid coordinate bring you to your target?

25
What is a pace count?
The number of steps it takes a soldier to walk 100 meters
26
A pace or step is equal to how many inches?
30 inches
27
What is the definition of a map?
A map is a graphic representation of a portion of the earths surface, drawn to scale, as seen from above
28
What are 5 major terrain features?
Hill, Valley, Saddle, Ridge, Depression
29
What are 3 minor terrain features?
Cliff, Spur, Draw
30
What is the first step in reading your map?
Orient the map
31
What is the back azimuth of 90º?
270º
32
Define grid north
Based on the vertical lines of a map that are labeled GN
33
Define Intersection
Locating an unknown point by using three known positions on the ground
34
Define resection
Locating your position by using three well defined locations that can be pinpointed on a map
35
How do you find the North Star?
The two stars at the bottom of the Big Dipper point to the North Star
36
What are 3 types of contour lines on a map?
Index, Intermediate, Supplementary
37
What are 3 bar scales used on a military map?
Kilometers, statute miles, nodical miles
38
What is the formula for determining how long it will take to move from point A to point B?
T=T/R
39
How do you determine direction using the shadow method where the compass is unreliable?
In the Northern Hemisphere, shadows fall to the North side of objects. Opposite for south.
40
How many mils are in a circle?
6,400
41
How many mils are in 1º?
17.78 mils/º
42
What is the declination diagram?
The angular difference between two North’s
43
What azimuth is used for resection when transferring the information to your map?
Back azimuth
44
What direction does the first shadow tip indicate?
West