PBH334Finalexamwithcorrect
answers
WhichofthefollowingsectorsconsumesthelargestamountofwaterintheUnitedStateseveryyear?
-Thermoelectric-powergeneration
-Irrigation
-Domestic(residential)use
-Industrial activities-correct answer✔✔-Thermoelectric-power generation
WhichofthefollowingsourcesCANNOTserveasasourceofdrinkingwater?
-Groundwater
-Lakes
-Rivers
-Oceans-correct answer✔✔-Oceans
WhichofthefollowingisNOTatreatmentstageinwatertreatmentplants?
-Coagulation
-Tertiarytreatment
-Disinfection
-Filtration -correct answer✔✔-Tertiarytreatment
Suspendedsolidparticlesinnatural (raw)watercanberemovedbybothcoagulationand
sedimentation.Thedifference betweencoagulationandsedimentation liesinthatcoagulation
_________ require theadditionofchemicalsandismoreefficientinremoving______solidparticles,
whereassedimentation________ require theadditionofchemicalsandismoreefficientinremoving
_________ solidparticles.
,-does,smaller,doesnot,larger
-does,larger,doesnot,smaller
-doesnot,larger,does,smaller
-doesnot,smaller,does,larger-correct answer✔✔-does,smaller,doesnot,larger
WhichofthefollowingisNOTthepurposeofwatertreatment?
-Toremove toxicchemicals
-Todecomposetaste/odor-formingcompounds
-Togenerate disinfectionbyproducts
-Toeliminate pathogens-correct answer✔✔-Togenerate disinfection byproducts
WhichofthefollowingisNOTthepurposeofwastewatertreatment?
-Toremove organicmatter
-Tomakethetreatedwaterdrinkablebypublic
-Toremove suspendedsolids
-Toeliminate pathogens-correct answer✔✔-Tomakethetreatedwaterdrinkable bypublic
Inwastewatertreatmentplants,primary, secondary,andtertiarytreatmentsaredesignedtoremove
____,____,and____,respectively.
-organicmatter;pathogensandnutrients;suspendedsolids
-suspendedsolids;organicmatter;pathogensandnutrients
-organicmatter;suspendedsolids;pathogensandnutrients
-pathogensandnutrients;suspendedsolids;organicmatter-correct answer✔✔-suspendedsolids;
organicmatter;pathogensandnutrients
Whichgasispumpedintotheaerationtanktopromotethegrowthofmicroorganismsinwastewater
treatment?
, -Oxygen
-Hydrogen
-Nitrogen
-Chlorine-correct answer✔✔-Oxygen
WhichofthefollowingstatementisINCORRECTaboutnutrientsinwastewater?
-Whentalkingaboutnutrientsinwastewater,weareprimarilyreferringtonitrogen- andphosphate-
basedchemicals
-Releasingnutrientsintotheaquaticenvironmentcancauseeutrophication
-Manyofthenutrientsindomesticwastewatercomefromhumanactivities
-Wastewatertreatmentplantsdonotusuallyremovenutrientsfromwastewaterbecausetheybenefit
thegrowthoflivingorganisms-correct answer✔✔-Wastewatertreatmentplantsdonotusually
remove nutrientsfromwastewaterbecausetheybenefitthegrowthoflivingorganisms
WhichofthefollowingisNOTanatural sourceofairpollution?
-Forestfires
-Volcaniceruptions
-Lawnandgardenequipment
-Duststorms-correct answer✔✔-Lawnandgardenequipment
WhichofthefollowingisNOTastationarysourceofairpollution?
-Awastewatertreatmentplant
-Athermoelectric powerstation
-Aschoolbus
-TheTeslaGigafactory-correct answer✔✔-Aschoolbus
WhichofthefollowingstatementsisINCORRECTregardingnitrogenoxides(NOx)?
answers
WhichofthefollowingsectorsconsumesthelargestamountofwaterintheUnitedStateseveryyear?
-Thermoelectric-powergeneration
-Irrigation
-Domestic(residential)use
-Industrial activities-correct answer✔✔-Thermoelectric-power generation
WhichofthefollowingsourcesCANNOTserveasasourceofdrinkingwater?
-Groundwater
-Lakes
-Rivers
-Oceans-correct answer✔✔-Oceans
WhichofthefollowingisNOTatreatmentstageinwatertreatmentplants?
-Coagulation
-Tertiarytreatment
-Disinfection
-Filtration -correct answer✔✔-Tertiarytreatment
Suspendedsolidparticlesinnatural (raw)watercanberemovedbybothcoagulationand
sedimentation.Thedifference betweencoagulationandsedimentation liesinthatcoagulation
_________ require theadditionofchemicalsandismoreefficientinremoving______solidparticles,
whereassedimentation________ require theadditionofchemicalsandismoreefficientinremoving
_________ solidparticles.
,-does,smaller,doesnot,larger
-does,larger,doesnot,smaller
-doesnot,larger,does,smaller
-doesnot,smaller,does,larger-correct answer✔✔-does,smaller,doesnot,larger
WhichofthefollowingisNOTthepurposeofwatertreatment?
-Toremove toxicchemicals
-Todecomposetaste/odor-formingcompounds
-Togenerate disinfectionbyproducts
-Toeliminate pathogens-correct answer✔✔-Togenerate disinfection byproducts
WhichofthefollowingisNOTthepurposeofwastewatertreatment?
-Toremove organicmatter
-Tomakethetreatedwaterdrinkablebypublic
-Toremove suspendedsolids
-Toeliminate pathogens-correct answer✔✔-Tomakethetreatedwaterdrinkable bypublic
Inwastewatertreatmentplants,primary, secondary,andtertiarytreatmentsaredesignedtoremove
____,____,and____,respectively.
-organicmatter;pathogensandnutrients;suspendedsolids
-suspendedsolids;organicmatter;pathogensandnutrients
-organicmatter;suspendedsolids;pathogensandnutrients
-pathogensandnutrients;suspendedsolids;organicmatter-correct answer✔✔-suspendedsolids;
organicmatter;pathogensandnutrients
Whichgasispumpedintotheaerationtanktopromotethegrowthofmicroorganismsinwastewater
treatment?
, -Oxygen
-Hydrogen
-Nitrogen
-Chlorine-correct answer✔✔-Oxygen
WhichofthefollowingstatementisINCORRECTaboutnutrientsinwastewater?
-Whentalkingaboutnutrientsinwastewater,weareprimarilyreferringtonitrogen- andphosphate-
basedchemicals
-Releasingnutrientsintotheaquaticenvironmentcancauseeutrophication
-Manyofthenutrientsindomesticwastewatercomefromhumanactivities
-Wastewatertreatmentplantsdonotusuallyremovenutrientsfromwastewaterbecausetheybenefit
thegrowthoflivingorganisms-correct answer✔✔-Wastewatertreatmentplantsdonotusually
remove nutrientsfromwastewaterbecausetheybenefitthegrowthoflivingorganisms
WhichofthefollowingisNOTanatural sourceofairpollution?
-Forestfires
-Volcaniceruptions
-Lawnandgardenequipment
-Duststorms-correct answer✔✔-Lawnandgardenequipment
WhichofthefollowingisNOTastationarysourceofairpollution?
-Awastewatertreatmentplant
-Athermoelectric powerstation
-Aschoolbus
-TheTeslaGigafactory-correct answer✔✔-Aschoolbus
WhichofthefollowingstatementsisINCORRECTregardingnitrogenoxides(NOx)?
