CCA International Exam Soil And Water Management
CCA INTERNATIONAL EXAM SOIL AND WATER MANAGEMENT NEWEST
2025/2026 COMPLETE ALL 100 QUESTIONS AND CORRECT ANSWERS
|ALREADY GRADED A+||BRAND NEW VERSION!
Tillage with heavy equipment when the soil water content is above field moisture
capacity can adversely affect the soils
a. pH
b. particle density
c. structure
d. texture - ANSWER-c. structure
As the soil moisture decreases, an increase will be observed in the soils
a. bulk density
b. porosity
c. strength
d. aggregate size - ANSWER-c. strength
Mottles occur in soil when the soil has been
a. continually saturated
b. excessively drained
c. continually aerated
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, CCA International Exam Soil And Water Management
d. exposed to alternating saturation and drainage - ANSWER-d. exposed to
alternating saturation and drainage
When a virgin soil is cultivated its soil organic matter content
a. increases first then stabilizes
b. decreases first then stabilizes
c. remains constant
d. increases first, then decreases - ANSWER-b. decreases first, then stabilizes
If the C:N ratio of an applied organic by-product is less than 20 it is expected that
the organic N in the material would
a. mineralize
b. immobilize
c. volatilize
d. nitrify - ANSWER-a. mineralize
Composting reduces the volume of organic material because carbon is lost as
a. methane
b. simple hydrocarbon
c. carbon dioxide
d. leaching of organic acids - ANSWER-c. carbon dioxide
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, CCA International Exam Soil And Water Management
The revised universal soil loss equation estimates annual .
a. mass movement of soil down slopes
b. interrill and rill erosion
c. gully erosion
d. combined soil loss from water and wind erosion - ANSWER-Interrill and rill
erosion
Conservation practices such as contour strip-cropping attempt to reduce run off
from agricultural crop fields by
a. increasing crop residue
b. decreasing slope length
c. decreasing tillage intensity
d. creating crop rotations - ANSWER-b. decreasing slope length
The factor of the revised universal soil loss equation that can be most easi.ly
adjusted by the farmer to reduce allowable soil loss is
a. R
b. K
c. L
d. C - ANSWER-d. C
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, CCA International Exam Soil And Water Management
Crop residue on the soil surface
a. increases evaporation of moisture from the soil surface
b. warms the soil
c. reduces the detachment of soil particles
d. limits the development of soil structures - ANSWER-c. reduces the detachment
of soil particles
Maintaining about 30% crop residue after corn planting is expected to reduce soil
erosion losses from the field by about
a. 5-10%
b. 10-20%
c. 50-65%
d. 85-100% - ANSWER-c. 50-65%
Benefits of riparian vegetative filter strips include all of the following except:
a. improved wildlife habitat
b. reduced sediment delivery to streams
c. storage of pollutants in plant biomass
d. increased channelized flow - ANSWER-d. increased channelized flow
The major function of a riparian filter strip is to
a. prevent soil particle detachment
b. trap sediment
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CCA INTERNATIONAL EXAM SOIL AND WATER MANAGEMENT NEWEST
2025/2026 COMPLETE ALL 100 QUESTIONS AND CORRECT ANSWERS
|ALREADY GRADED A+||BRAND NEW VERSION!
Tillage with heavy equipment when the soil water content is above field moisture
capacity can adversely affect the soils
a. pH
b. particle density
c. structure
d. texture - ANSWER-c. structure
As the soil moisture decreases, an increase will be observed in the soils
a. bulk density
b. porosity
c. strength
d. aggregate size - ANSWER-c. strength
Mottles occur in soil when the soil has been
a. continually saturated
b. excessively drained
c. continually aerated
1|Page
, CCA International Exam Soil And Water Management
d. exposed to alternating saturation and drainage - ANSWER-d. exposed to
alternating saturation and drainage
When a virgin soil is cultivated its soil organic matter content
a. increases first then stabilizes
b. decreases first then stabilizes
c. remains constant
d. increases first, then decreases - ANSWER-b. decreases first, then stabilizes
If the C:N ratio of an applied organic by-product is less than 20 it is expected that
the organic N in the material would
a. mineralize
b. immobilize
c. volatilize
d. nitrify - ANSWER-a. mineralize
Composting reduces the volume of organic material because carbon is lost as
a. methane
b. simple hydrocarbon
c. carbon dioxide
d. leaching of organic acids - ANSWER-c. carbon dioxide
2|Page
, CCA International Exam Soil And Water Management
The revised universal soil loss equation estimates annual .
a. mass movement of soil down slopes
b. interrill and rill erosion
c. gully erosion
d. combined soil loss from water and wind erosion - ANSWER-Interrill and rill
erosion
Conservation practices such as contour strip-cropping attempt to reduce run off
from agricultural crop fields by
a. increasing crop residue
b. decreasing slope length
c. decreasing tillage intensity
d. creating crop rotations - ANSWER-b. decreasing slope length
The factor of the revised universal soil loss equation that can be most easi.ly
adjusted by the farmer to reduce allowable soil loss is
a. R
b. K
c. L
d. C - ANSWER-d. C
3|Page
, CCA International Exam Soil And Water Management
Crop residue on the soil surface
a. increases evaporation of moisture from the soil surface
b. warms the soil
c. reduces the detachment of soil particles
d. limits the development of soil structures - ANSWER-c. reduces the detachment
of soil particles
Maintaining about 30% crop residue after corn planting is expected to reduce soil
erosion losses from the field by about
a. 5-10%
b. 10-20%
c. 50-65%
d. 85-100% - ANSWER-c. 50-65%
Benefits of riparian vegetative filter strips include all of the following except:
a. improved wildlife habitat
b. reduced sediment delivery to streams
c. storage of pollutants in plant biomass
d. increased channelized flow - ANSWER-d. increased channelized flow
The major function of a riparian filter strip is to
a. prevent soil particle detachment
b. trap sediment
4|Page
