WASTEWATER QUESTIONS WITH CORRECT ANSWERS 2026

WASTEWATER QUESTIONS WITH
CORRECT ANSWERS 2026

The Dterm Dpathogenic Dmeans D- Dcorrect Danswer-Capable Dof Dcausing Ddisease




Question: DThe Dminimum Dseparation, Dbetween Dsewer Dlines, Dand Dpotable Dwater Dlines Dis




A. D8 Dfeet

B. D9 Dfeet

C. D10Kfeet D- Dcorrect Danswer-B. D9 Dfeet




An Dimportant Dstep, Din Dtesting Da Dsample, Dfor DTotal DSuspended DSolids Dis D- Dcorrect Danswer-Filtering
Da Dsample




Biochemical Doxygen DDemand, D(BOD) Dtest Dis Dbased Don? D- Dcorrect
Danswer- DMeasuring, Dthe Ddissolved Doxygen, Dused




Results, Dof DBiochemical DOxygen DDemand, D(BOD) Dsample, Dtaken Dat Da Dtreatment Dplant, Dtells Dthe
Doperator D- Dcorrect Danswer-How Dthe Dplant, Dwas Doperating, D5 Ddays Dago




Question: DWhich Dof Dthe Dfollowing Dare Ddangerous Dgasses Dthat Dare Dlikely Dto Dbe Dpresent Din Dlift

,Dstations Dand Dm Danholes D- Dcorrect Danswer-Natural Dgas, Dgasoline Dfumes, Dhydrogen Dsulfide, Dand
Dcarbon Ddioxide




Question: DWhat Dis Dthe Dpreferred, Dhydraulic Dmethod Dof Dcleaning Dsewer Dlines D-
Dcorrect Danswer- DAnswers: DHydro DJet DCleaning




Question: Dwhat Dare Dsome DWays, Dto Dreduce Dbad Dodors, Dgenerated Din Dthe Dcollection
Dsystem D- Dcorrect Danswer-Answer:


Routinely Dcleaning, Dslow Drunning, Dor Dlow Dflow Dlines,

adding Dchlorine, Dor Dhydrogen Dperoxide, Dto Dthe Dcollection Dsystem

,Question: Dwhat Dare Dsome DTypes Dof Dpipe Dmaterials Dcommonly Dfound Din Dwastewater Dcollection
Dsystem D- Dcorrect Danswer-Answer: Dductile Diron, DPoly DVinyl DChloride, D(PVC) Dvitrified Dclay
Dpipe, Dfiberglass




Question: Dbefore Dentering Da Dconfined Dspace, Da Dworker Dshould Dperform, Dwhat
Dprocedures D- Dcorrect Danswer-


Answer:have Dan Dapproved Dmonitoring Ddevice, Dand Dcheck, Dfor Dthe Dpresence Dof Ddangerous Dgasses,
Dventilate


, Dthe Dspace Dwith Da Dblower, Dwear Da Dsafety Dharness, Dand Dbe Dattach Dto Da Dlife Dline




AKproperly Ddesigned, Dand Doperated Dprimary Dsedimentation Dtank, Dshould Dremove Dwhat Dpercent
Dof Dincomin Dg DBOD.




A.20% Dto D30%

B. D25 D% Dto D50%

C. D30% Dto D40% D- Dcorrect Danswer-C. D30 Dto D40%




What DDevices, Dcan Dbe Dused, Dto Ddetermine, Dthe Dlevel Dof Dsewage, Din Da Dlift Dstation D-
Dcorrect Danswer- DAnswer: Dair Dbubbler, Dfloats, Delectrodes, DAcoustic D(sonic), Dradar




What, Dis Dthe Dmost Dimportant Drole, Dof Daerobic Dbacteria, Din Dthe Dtreatment, Dof Dwastewater? D-
Dcorrect Danswer- Ddecomposition, Dof DorganicKmatter

, Question: DHow Dis Dthe Dhydraulic Dloading, Dof Da Dtrickling Dfilter, Ddetermined D- Dcorrect
Danswer- DAnswer:flow Drate, Dand Dfilter Darea




Question: Dwhat Dequipment, Dor Dmethods, Dcan Dbe Dused, Dto Ddewater Dsludge D- Dcorrect
Danswer- DAnswer: Dbelt Dpress, Ddrying Dbeds, Dsolid Dbowl, Dcentrifuge, Dgravity Dthickener




Question: Dwhat Dare Dthe DMost Dimportant Dfactors, Dto Dproviding Dadequate Dsewage Dtreatment, Din
Da Dstabilizati Don Dpond D-Kcorrect Danswer-Answer: Dsunlight, Dalgae, Dbacteria Dand, Dtime




Question: Dwhat Ddo DOffensive, Dand Dobjectionable Dodors, Din Da Dtrickling Dfilter, Dusually
Dindicate D- Dcorrect Danswer-Answer: Dseptic Dconditions Dexist