CPESC AU PRACTICE Questions and Correct Answers Latest Update.
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vCPESC AU PRACTICE Questions and Correct Answers Latest Update.CPESC AU PRACTICE Questions and Correct Answers Latest Update.CPESC AU PRACTICE Questions and Correct Answers Latest Update.CPESC AU PRACTICE Questions and Correct Answers Latest Update.CPESC AU PRACTICE Questions and Correct Answers La...
CPESC AU PRACTICE Questions and Correct Answers |
Latest Update
Most plants are useful for erosion control, but some are more desirable than others due to: - (correct answer) -adaptability
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to physical and climatic site conditions
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For a given amount of water, which has the more kinetic energy - (correct answer) -rainfall at 100mm/hr (more than water
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running off in rills)
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The definition for hydraulic radius is - (correct answer) -the ratio of a cross-sectional area to the corresponding wetted
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perimeter
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a factor that can afffect stormwater runoff volume is - (correct answer) -the hydrolic soil group
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when specifying a legume in a seed mixture for revegetation one should - (correct answer) -specify the legume inoculation
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rate
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which one of the following sediment basin shapes has the greatest potential for being most effective in removing
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suspended particles for a coarse grained soil: - (correct answer) -a rectangular basin having a length :width ration = 8:1
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The collar on the underground portion of the discharge pipe in a sediment basin is - (correct answer) -to control seepage
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along the pipe
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to avoid soil erosion, all sites should be turfed as soon as work is completed T/F - (correct answer) -F
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Poly aluminum chloride coagulants are suitable for use in acidic receiving environments T/F - (correct answer) -F
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Hay bales are preferred over straw bales because they are more readily available and are more tightly packed T/F -
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(correct answer) -F
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sediment yield - (correct answer) -doesn't include what has already been deposited
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RUSLE calculates what types of erosion - (correct answer) -sheet and rill
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gross erosion - (correct answer) -sheet, rill, and other erosion
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gr - (correct answer) -gravel
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slope = - (correct answer) -rise/run
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straw - (correct answer) -better than hay because no seed or nutrients
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saltation example - (correct answer) -dust behind truck will fall back down quickly
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Wind erosion-stockpiles e=1.7(s/1.5)(365-p)/235(f/15): e= - (correct answer) -total suspended particulates lb./day/acre
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Wind erosion-stockpiles e=1.7(s/1.5)(365-p)/235(f/15): s= - (correct answer) -silt content, percent
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Wind erosion-stockpiles e=1.7(s/1.5)(365-p)/235(f/15): p= - (correct answer) -# of days per year with >or= .01" rainfall
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Wind erosion-stockpiles e=1.7(s/1.5)(365-p)/235(f/15): f= - (correct answer) -percent time with wind speed > 12 mph at
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mean pile height
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antecedent moister - (correct answer) -moister already in the soil, affects runoff
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time parameters - (correct answer) -24 hr storm 2, 10 or 100-check juristriction
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