Land NAV

Question 1

Black

Answer 1

Man made

Question 2

Blue

Answer 2

Water

Question 3

Brown

Answer 3

Relief features

Question 4

Green

Answer 4

Vegetation

Question 5

Brown

Answer 5

Cultural features

Question 6

Major terrain features

Answer 6

Hill, valley, ridge, saddle, and depression

Question 7

Minor terrain features

Answer 7

Draw, spurr, cliff

Question 8

Intersection vs Resection

Answer 8

Intersection: locate unknown point with 2 known points

Resection: locate your location with two known points

Question 9

Difference between Resection and modified Resection

Answer 9

Modified Resection uses a linear feature and a known location to find your location

Question 10

How to use modified Resection

Answer 10

Orient the map using a compass and/or by terrain association.
Locate a point in the distance that can be easily identified on the ground and on the map.
Determine the magnetic azimuth from your location to the distant known point.
Convert the magnetic azimuth to a grid azimuth.
Convert the grid azimuth to a back azimuth, using the add or subtract 180 accordingly depending on the degrees.
Using a protractor, draw a line for the back azimuth on the map from the known position back toward your unknown position.

BE SURE TO STAND ON LINEAR FEATURE