Map Reading and Land Navigation

Question 1

How is a lensatic compass held?

Answer 1

Centerhold and compass-to-cheek

Question 2

What is a Map?

Answer 2

A graphic representation of a portion of the Earth’s surface drawn to scale, as seen from above

Question 3

Where is the legend on a map?

Answer 3

Lower left margin.

Question 4

Which North is used when using a Military map?

Answer 4

Grid North

Question 5

What is the basic rule for reading grid coordinates on a Military map?

Answer 5

Right and up

Question 6

What is a back azimuth?

Answer 6

180 degrees in reverse of a measured azimuth

Question 7

How close does an eight-digit, six-digit, and four-digit grid coordinate locate a point?

Answer 7

10 meters, 100 meters, and 1,000 meters

Question 8

What is an azimuth?

Answer 8

Direction, defined as a horizontal angle measure from North in a degrees or mils.

Question 9

What are Contour Lines?

Answer 9

Imaginary Lines on the ground that connect points of equal elevation.

Question 10

Can a lensatic compass be used at night?

Answer 10

Yes, it has luminous dials and needles.

Question 11

What are the three types of Contour Lines?

Answer 11

Index, Intermediate, and Supplementary

Question 12

What two things can affect a lensatic compass?

Answer 12

Metal or electricity

Question 13

What is longitude?

Answer 13

The imaginary rings around the earth running north and south, specifying positions east to west. Measured in degrees and minutes.

Question 14

Name the two scales on a lensatic compass.

Answer 14

Mils and Degrees

Question 15

How many scales are there on a Compass?

Answer 15

Two

Question 16

Name the two Supplemental Terrain features.

Answer 16

Cut and Fill

Question 17

Name the five types of Terrain found on a map.

Answer 17

Ridges, Hilltops, Valleys, Depressions, and Saddles.

Question 18

What is a Base Line?

Answer 18

The starting point or point of reference from which a unit of measure is taken.

Question 19

Name the minor Terrain features found on a map.

Answer 19

Draw, Spur, and Cliff

Question 20

Name the three Norths on a Military maps.

Answer 20

True North, Magnetic North, and Grid North.

Question 21

What is Latitude?

Answer 21

The imaginary rings around the earth running east and west and parallel to the equator, specifying positions north to south. Measured in degrees and minutes.

Question 22

What are the five basic colors of a map and what do they stand for?

Answer 22

Blue: Water and water features
Red: Roads
Black: Man-made objects
Green: Vegetation
Brown: Contour lines, elevation, and relief

Question 23

Define Resection.

Answer 23

A method used to locate 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.

Question 24

Define Intersection.

Answer 24

A method used to determine the location of an unknown point by successively occupying at least two known positions on the ground and then map sighting on the unknown location.