CORE CORE Land Navigation and Orienteering 5

Question 1

Declination on a compass refers to the difference between:

Accepted Answer

Magnetic north and true (geographic) north

Answer

Magnetic declination is the angular difference between magnetic north (where the compass needle points) and true geographic north.

Question 2

A topographic map scale of 1:24,000 means that 1 inch on the map equals how many inches on the ground?

Accepted Answer

24,000 inches

Answer

A 1:24,000 scale means one unit on the map equals 24,000 of the same units on the ground.

Question 3

When triangulating your position with a compass, what is the minimum number of landmarks you need to take bearings on?

Accepted Answer

Two

Answer

Two back-bearings plotted on a map where they intersect identify your position, though a third is used to confirm accuracy.

Question 4

Which color on a standard USGS topographic map represents water features such as rivers and lakes?

Accepted Answer

Blue

Answer

Blue is universally used on USGS topographic maps to represent water features including rivers, lakes, and streams.

Question 5

A ridge line on a topographic map is identified by contour lines that:

Accepted Answer

Form V-shapes pointing toward lower elevation

Answer

Ridges are shown by contour lines that form V- or U-shapes with the tip pointing downhill (toward lower elevation).

CORE - Conservation and Outdoor Recreation Education Practice Test