Map Reading and Terrain Analysis

Question 1

A ___ is a graphic representation, drawn to scale, of a portion of the earth’s surface as seen from above.

Answer 1

map

Question 2

___is found in 2 places: upper center margin and lower margin side. Taken from most outstanding feature within map.

Answer 2

sheet name

Question 3

The ___ is found in upper right and lower left margins and identifies this map sheet from all other map sheets.

Answer 3

sheet number

Question 4

The ___ is found in upper right and lower left margins and is a sequence reference expressed as four-digit number.

Answer 4

series number

Question 5

___ tells you what map sheet you would need to navigate in an area adjacent to the area covered by this map sheet.

Answer 5

adjoining sheets

Question 6

A ___ is a statement of general information that relates to the mapped area, usually in lower right margin.

Answer 6

special note

Question 7

The ___ shows the angular differences between true north, grid north, and magnetic north.

Answer 7

declination diagram

Question 8

numbers, such as 1:50,000, meaning 1 unit on map is 50,000 units in real world.

Answer 8

scale

Question 9

__ are used to convert map distance to ground distance and vice versa

Answer 9

bar scales

Question 10

___ is the vertical distance between contour lines with a unit of measurement usually in feet or meters

Answer 10

contour intervals

Question 11

___ identifies the grid zone designation, and contains the 100,000 meter square identification.

Answer 11

grid reference box

Question 12

___ tells what the colors and symbols stand for on this map.

Answer 12

legend

Question 13

the map dictionary

Answer 13

glossary

Question 14

what color indicates cultural man-made features, such as buildings and roads?

Answer 14

black

Question 15

what color identifies hydrography or water features such as lakes and rivers?

Answer 15

blue

Question 16

what color identifies all relief features and elevation, such as contour lines on older nonred-light readable maps?

Answer 16

brown

Question 17

what color identifies vegetation?

Answer 17

green

Question 18

what color classifies cultural features, such as populated areas, main roads, and boundaries on older maps?

Answer 18

red

Question 19

combined color to identify cultural features, relief features, non-surveyed spot elevations

Answer 19

red-brown

Question 20

a line of high ground from which a total of 10 natural or man-made terrain features are classified.

Answer 20

ridgeline

Question 21

5 MAJOR terrain features:

Answer 21

1. Hill
2. Saddle- lower point between hilltops
3. Valley
4. Ridge
5. Depression- closed contour lines with tick marks pointing toward low ground

Question 22

3 MINOR terrain features:

Answer 22

1. Draw- gaps
2. Spur- fingers
3. Cliff- contour lines come together

Question 23

2 SUPPLEMENTARY terrain features:

Answer 23

1. Cut- ticks point toward road

2. Fill- ticks point away from road

Question 24

MGRS (map)

Answer 24

Military Grid Reference System

Question 25

UTM Grid (map)

Answer 25

Universal Traverse Mercator Grid

Question 26

UTM Grid is divided into ___ N-S zones, each ___ degrees wide.

Answer 26

60, 6

Question 27

How accurate is:
4 digit?
6 digit?
8 digit?
10 digit?

Answer 27

4=1000 m
6=100 m
8=10 m
10=1 m

Question 28

4 ___ are located at the bottom of the map: measurements are in ___, ___ and ___

Answer 28

bar scales

meters, statute miles, nautical miles

Question 29

2 types of distances (maps)

Answer 29

1. straight-line (on map)

2. road (convoys and road marches)

Question 30

___ is defined as a horizontal angle measured clockwise from a base direction (North)

Answer 30

azimuth

Question 31

3 base directions of North:

Answer 31

1. True North- ends in star
2. Grid North
3. Magnetic North- ends in half arrowhead

Question 32

___ is used to locate an unknown point by occupying at least two or three known positions on the ground and then map sighting on the unknown location.

Answer 32

Intersection

Question 33

___ 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

Answer 33

Resection, modified resection

Question 34

2 methods to determine a magnetic azimuth:

Answer 34

compass to cheek

center hold