CPESC Part 1 and 2 Exam Questions and Correct Answers Updated.

CPESC Part 1 and 2 Exam Questions and
Correct Answers Updated
Question 1
What kind of erosion is the increased rate of erosion caused primarily by the removal
of natural vegetation or alteration of the ground contour.
Correct Answer
Accelerated erosion



Question 2
Which soil type has medium pore spaces and water flows at moderate to moderately
low rates?
Correct Answer
Silt



Question 3
What are "gap-graded" soils?

Correct Answer
Soils where particle sizes are missing



Question 4
(Gravel and sand or Clay and silt grains) are known as cohesive soils.
Correct Answer
Clay and silt




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,Question 5
Which soil type has very small pore spaces and plenty of void that aren't connected
which lead to poor drainage.
Correct Answer
Clay



Question 6
What is sediment storage volume for basins per acre?
Correct Answer
3,600 cubic feet per acre



Question 7
What are Phase I facilities?
Correct Answer
1. Facilities already covered by an NPDES permit for stormwater 2. Facilities that
engage in industrial activity 3. Large (>250,000 population) municipal separate
storm drain systems 4. Medium (100,000> population <250,000) municipal separate
storm drain systems 5. Facilities that the EPA administrator determines to have
stormwater discharges contributing to a violation of water quality, or that are
""significant contributors"" of pollutants to waters of the United States"



Question 8
Poorly graded soils tend to have______ infiltration rates, and ____ strength.
Correct Answer
higher, less



Question 9
Which HSG soils have low runoff potential and high infiltration rates even when
wetted. Mainly deep well to excessively drained sands or gravels?
Correct Answer
HSG A




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,Question 10
Which HSG soils typically have between 20% and 40% clay and less than 50% sand
and have loam, silt loam, sand clay loam, clay loam, and silty clay loam textures.
Correct Answer
HSG C



Question 11
What kind of sediments alter the aquatic environment by screening out sunlight and
by changing the rate and the amount o heat radiation?

Correct Answer
Fine-grained sediments such as clays, silts, and fine sands



Question 12
What is the amount of a particular pollutant that a water body can assimilate daily
without violating applicable water quality standards?
Correct Answer
Total Maximum Daily Limit (TMDL)



Question 13
What are the main five soil formation factors?
Correct Answer
Parent material, climate, time, soil organisms, and topography



Question 14
The most erodible soils generally contain high proportions of what soil particles?
Correct Answer
silt and very fine sand




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, Question 15
Acidic soils are characterized by _____ pH values and alkaline soils are characterized by
______ pH VALUES.
Correct Answer
lower, higher



Question 16
What is the sum of losses that occur before runoff begins? These losses include
interception, evaporation, and infiltration

Correct Answer
Initial abstraction



Question 17
What are the factors affecting runoff?
Correct Answer
1. Precipitation 2. Time parameters 3. Watershed area 4. Ground cover 5.
Antecedent moisture condition 6. Storage in the watershed 7. Soil permeability"



Question 18
What is the first stage of the erosion process and occurs when a raindrop hits bare
soil?
Correct Answer
Splash erosion



Question 19
Essential nutrients for plant growth include:
Correct Answer
macronutrients and micronutrients




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