Soil and Slope Quiz

Calculating slope is useful for anticipating the direction rain water will flow.

• True

• False

It is better to construct a building’s foundation on hard clay rather than sandy loam.

• True

• False

Sloping is considered severe at what percentage or higher?

• Five

• Four

• Three

• Two

Which of the following factors refers to the soil’s ability to absorb water rather than keep water on the surface?

• Permeability

• Slope

• Orientation

• Utilities availability

Which of the following is NOT a way to compensate for the problems caused by an undesirable slope?

• Bring in fill dirt

• Create diversion structures to divert undesirable water flow

• Dig out excess soil until slope is more level

• Plant trees which quickly absorb run-off water

Subsoil can be identified by a change in which of the following?

• Texture

• Color

• Softness

• Smell

Which of the following tools is not needed to determine slope?

• Surveyor’s tape measure

• Small shovel

• Surveyor’s transit and tripod

• Story pole

Both vehicular and pedestrian traffic are factors of concern at a site.

• True

• False

Water-intensive vegetations are indicators of possible overhead or standing water problems at a site.

• True

• False

Does clay shrink or swell when exposed to excessive moisture?

• Shrink

• Swell