Name: 
 

2011 Ohio District 7 Urban Soils Test



True/False
Indicate whether the statement is true or false.
 

 1. 

Alluvial deposits are transported, sorted, and deposited by water.
 

 2. 

Plant and animal matter in various stages of decomposition is organic matter.
 

 3. 

A terrace is an old flood plain.
 

 4. 

Sand, silt, and clay material deposited on land by streams known as alluvium.
 

 5. 

Fragipans commonly have granular structure.
 

 6. 

A seasonal high water table greater than 60” would require exterior waterproofing coatings on a basement wall.
 

 7. 

A conventional septic tank absorption field with distribution lines on the contour would be used if the slope was less than 6%.
 

 8. 

If the area was subject to flooding, slippage, or subsidence , you would use an alternative design for your home sewage treatment and disposal system.
 

 9. 

A conventional effluent absorption field should be used when there are no moderate or severe limitations.
 

 10. 

In a flood plain, elevation to driveways or local roads would be necessary.
 

 11. 

The most precise way to measure slope is with a clinometer.
 

 12. 

If bedrock is present within 40” , shallow-rooted trees and shrubs would be used.
 

 13. 

In moist soil, macropores account for more air movement than micropores.
 

 14. 

Evapotranspiration is water transpired by vegetation plus water evaporated from the soil.
 

 15. 

Shrinking of the soil when wet and swelling of the soil when dry is termed subsidence.
 



 
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