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  • Virginia Erosion And Sediment Control Inspector
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Exam (elaborations)

Virginia Erosion And Sediment Control Inspector Exam Questions And Answers Rated

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Institution Virginia Erosion And Sediment Control Inspector
Course Virginia Erosion and Sediment Control Inspector
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VIRGINIA EROSION AND SEDIMENT CONTROL INSPECTOR EXAM QUESTIONS AND ANSWERS RATED

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VIRGINIA EROSION AND SEDIMENT
CONTROL INSPECTOR EXAM
QUESTIONS AND ANSWERS RATED
ErosionmImpactmAream-
mCORRECTmANSWERSmareamofmlandmNOTmASSOCIATEDmwithmamcurrentmland-


mdisturbingmactivitymbutmcontributingmtomsedimentation



Howmmuchmmoremsoilmlossmoccursmfrommconstructionmsitesmversusmnaturalmsoilmerosionmrates?mAg
riculturalmland?m-
mCORRECTmANSWERSm1000mtimesmmoremthanmthemaveragemnaturalmsoilmerosionmrate.m



20mtimesmmoremthanmagriculturalmland.

Whatmarem4merosivemforces?m-mCORRECTmANSWERSmwind

water

ice

gravity

Namemandmdefinem5mstagesmofmsoilmerosion.m-mCORRECTmANSWERSmRaindrop-
m90%mofmtotalmsoilmerosion



Sheet-
mthemsoilsmabilitymtominfiltratemwatermismexceededmandmitmrunsminmsheetmflowm(aboutm100mftmbefore


mconcentrating),mhowmsedimentmgetsmtransported



Rill-
mwhenmsheetmflowmbeginsmtomconcentrate,mvelocitymandmturbulencemincrease,mbutmeasilymrepaire


d

Gully-whenmrillsmconverge,mlargermthanmrillmandmusuallymrequiresmheavymequipmentmtomrepair

Channel-
mlargemvolumemofmwatermincreasesmthemgully,mverticalmsidesmaremobservedmormformanmexistingmstrea


mbedmwhenmstructuralmintegritymismdestroyed

Whatmaremthemfactorsmofmrainfallmimpact?m-
mCORRECTmANSWERSmKineticmenergymismdependentmonmrainfallmamount/intensity,mraindropmdiam


eter,mandmraindropmvelocity

, Whatmaremtwomdamagingmeffectsmofmrainfallmimpact?m-
mCORRECTmANSWERSmCausesmsoilmcompressionmwhichmreducesminfiltration



MainlymoccursminmMay-Septmwhichmismwhenmdisturbancemismmostmactive

4mfactorsminfluencingmerosionm-mCORRECTmANSWERSmclimatem

groundcoverm(influencedmbymhumans)

soilmproperties

topographym(influencedmbymhumans)

Whatmpercentmreductionmoccursmfrommvegetativemcover?m-mCORRECTmANSWERSm90-99%

Whatmaremsoilmproperties?m-mCORRECTmANSWERSmStructurem(particlesmadhere)

Texturem(size)

Bulkmdensitym(howmtightlympacked)

%morganicmmatter

infiltrationm(intomsoil)

permeabilitym(throughmsoil)

WhatmismKmfactor?m-mCORRECTmANSWERSmthemsusceptibilitymofmamparticularmsoilmtomerosion



developedmbympermeability,msoilmtexture,msoilmstructure,mandmorganicmmattermcontent



lowmKmfactormismlowmerodibilitym(0-0.23),mandmhighmism(0.37m+)

Whatmismamvariance?m-
mCORRECTmANSWERSmgrantedmbymthemVESCPmauthoritymtomwaivemormmodifymamrequirementmifmitmi


smtoomrestrictive



canmrequestmduringmplanmsubmissionmormduringmconstruction.mifmnomreplymafterm10mdays,mthenmde
nied.

Whatmismregulatedmlandmdisturbingmactivity?m-
mCORRECTmANSWERSmgreatermthanmormequalmtom10,000msquaremft

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