Topography Lab

Question 1

How do you calculate the maximum and minimum relief?

Answer 1

You subtract the lowest low from the highest high for the max relief. Then subtract the highest low from the lowest high for the minimum relief.

Question 2

What do hachure lines indicate on topo maps?

Answer 2

There is a depression, the elevation goes down.

Question 3

On topo maps, what does the Rule of V’s indicate?

Answer 3

Wherever a contour crosses a stream/river, the contour bends to form a V (or U shape) whose apex points upstream to higher elevation. That stream/river then runs from the high point (where the apex points) to lower ground.

Question 4

What are the three varieties of scale?

Answer 4

Bar, representative fraction, and statement of equivalency

Question 5

What is the formula of gradient and what unit must gradient be in?

Answer 5

Elevation Difference in ft (between the 2 points)

DIVIDED BY

Horizontal Distance in miles (between the 2 points)

The unit is ft/mi

Question 6

How do you calculate vertical exaggeration?

Answer 6

horizontal scale

DIVIDED BY

vertical scale

Question 7

What is one mile in inches?

Answer 7

63,360 inches

Question 8

What is one mile in feet?

Answer 8

5,280 feet

Question 9

What is one mile in kilometers?

Answer 9

1.609 km

Question 10

What is one inch in centimeters?

Answer 10

2.54 cm

Question 11

What is one centimeter in inches?

Answer 11

0.394 inches

Question 12

What is one kilometer in miles?

Answer 12

0.621 miles