Name: 
 

2008 Ohio State Urban Soils Test



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

In Ohio there are more than __________ significant and unique combinations of soil conditions.
a.
300
b.
475
c.
600
d.
775
 

 2. 

Soils with slopes greater than ________ percent have severe limitations for such uses as buildings with basements, septic tank absorption fields, driveways, and local roads.
a.
2
b.
6
c.
9
d.
12
 

 3. 

A landform that often appears as a step-like surface or bench-like surface feature between the higher uplands and lower flood plains is called ________.
a.
depression
b.
upland
c.
terrace
d.
hill slope
 

 4. 

The soils on _________ are very young in age and lack the features that are developed in layers (horizons) of older soils.
a.
flood plains
b.
swales
c.
uplands
d.
terraces
 

 5. 

Slope is the _______ rise and fall of land in a measured _______ distance and is measured in percent (%).
a.
vertical & vertical
c.
horizontal & vertical
b.
horizontal & horizontal
d.
vertical & horizontal
 

 6. 

Surface soil texture refers to the texture of the normal plow layer or the upper _____ inches of topsoil.
a.
4
b.
5
c.
6
d.
7
 

 7. 

________ is irregular spots of different colors that vary in number and size and generally indicate poor aeration and impeded drainage.
a.
ped
b.
matrix
c.
mottling
d.
pore
 

 8. 

_______ is material such as sand, silt, or clay deposited on land by streams.
a.
effluent
b.
macropore
c.
subsidence
d.
alluvium
 

 9. 

At least _______ of soil material is necessary between the bottom of the trenches and bedrock for adequate filtering of effluent.
a.
1 foot
b.
2 feet
c.
3 foot
d.
4 foot
 

 10. 

A _______ is a firm subsoil horizon that is hard and brittle when dry and somewhat brittle when moist.
a.
fragipan
b.
mottling
c.
glacial
d.
parent material
 

 11. 

In general absorption fields must not be located closer than ________ feet to water well.
a.
50
b.
100
c.
200
d.
300
 

 12. 

Slight depressions, sometimes swampy areas found in generally level land is called a ________.
a.
outwash
b.
flat
c.
swale
d.
dune
 

 13. 

____________ is water transpired by vegetation plus water  evaporated from the soil.
a.
available capacity
b.
evapotranspiration
c.
effluent
d.
ground moraine
 

 14. 

Slopes greater than _________ percent create erosion hazards, that if neglected, can cause driveways to wash out or becomes covered with debris.
a.
1
b.
2
c.
3
d.
6
 

 15. 

Settling of organic soils, soils containing semifluid layers, or materials that are dissolved in solution, is called.
a.
moraine
b.
subsidence
c.
solom
d.
effluent
 



 
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