2.2 Perform Topographical Analysis

Question 1

What is a typical max slope?

Answer 1

Between 5 and 10 percent

Question 2

Rate of change in elevation between two points in a given area; rise over run

Answer 2

slope

Question 3

The overall changes in topography on a site or a particular region; Vertical difference in elevation between highlands and lowlands in a given region

Answer 3

Relief

Question 4

Represents the change in topography; often created by shading the areas between contours on a topographic map; often used to evaluate the pathways for existing or proposed drainage through a water shed or across site

Answer 4

Relief Map

Question 5

Direction in which a sloping land surface faces relative to the cardinal points

Answer 5

Aspect

Question 6

Which slope aspects receive hotter temperatures?

Answer 6

1.) South, 2.) West

Question 7

The slow movement of soil in a downhill direction under the influence of gravity

Answer 7

Soil creep

Question 8

Poorly consolidated deposited material deposited at the base of hills, particularly at the mouths of gullies and ravines. The material is generally highly erodible and has poor bearing strength for structures

Answer 8

Alluvial Fans

Question 9

What re the typical angle of repose for different materials by percent?

Answer 9

Sand - 33%
Boulders 45%
Loam 45%
Well compacted clay - 65%