TCEQ Class C Water License Exam
Questions And Answers
State bAgency bresponsince bfor benforcing bthe bsafe bdrinking bwater bact bin bTexas b-
bcorrect banswers✔✔Texas bCommission bon benvironmental bQuality
What bminerals bcan bcause bwater bhardness b- bcorrect banswers✔✔Calcium band
bmagnesium
A bpublic bwater bsystem bmust bat ball btimes bprovide b- bcorrect banswers✔✔Adequate
bquantity bof bwater, bpressure, band bdisinfection
A bsource bgroundwater bwould bbe b- bcorrect banswers✔✔aquifer
Fecal bcoliform borganisms bsometimes bfound bin bwater bsupplies bare ban bindication
bthat b- bcorrect banswers✔✔Water bsupply bis bcontaminated, bharmful bbacteria bmay bbe
bpresent, bpossible bpathogenic borganisms bin bthe bwater, bwater bis bunsuitable bfor
bdrinking
A bdisease bthat bmay bbe bspread bby binadequately bdisinfected bwater b- bcorrect
banswers✔✔Dysentery
A bcommon bchemical bused bin bdisinfection bof bsmall bwater bsupply bis b- bcorrect
banswers✔✔Calcium bhypochlorite
A bphysical bconnection bbetween ba bpotable bwater bsupply band bhouse bwell bwould bbe
b- bcorrect banswers✔✔A bcross bconnection
The bamount bof bchlorine bin bmg/L bthat bis bused bup bby breacting bwith biron borganics
bof bbacteria bis bcalled b- bcorrect banswers✔✔Demand
Which bof bthe bfollowing bis ba bphysical bcharacteristic bof bchlorine bgas b- bcorrect
banswers✔✔Greenish-Yellow bColor, bheavier bthan bair, bpungent bpenetrating bodor,
bcorrosive
Which bof bthe bfollowing bwould bbe bconsidered ba bpart bof ba bhypo-chlorinator bsystem
b- bcorrect banswers✔✔Solution bfeed bpump
, According bto bstate brequirements, ball bpublic bwater bSupply bwells bshould bbe bprovided
bwith ba braised bconcrete bsealing bblock, bscreened bvents, band- b- bcorrect
banswers✔✔A bflow bmeasuring bdevice
Drawdown bof ba bwater bwell bis bdetermined bby b- bcorrect banswers✔✔Difference bin
bstatic band bpumping blevels
pH bof bwater bindicates b- bcorrect banswers✔✔If bit's bacidic bor bbasic
The bpH bof bwater bis bexpressed bon ba bpH bscale bof b- bcorrect banswers✔✔0-14
Water bthat bis bconsidered bneutral bis bexpressed bon bthe bpH bscale bat b- bcorrect
banswers✔✔7.0
Which bof bthe bfollowing bis ba brequired bStep bin bcollecting ba broutine bdistribution
bsample bfor bbacteriological btesting? b- bcorrect banswers✔✔Use bof ban bapproved,
bsterile bsample bcontainer
Sand bfiltration bwill bremove bwhich bof bthe bfollowing bfrom bsurface bwater b- bcorrect
banswers✔✔Turbidity
Activated bcarbon bis bused bin ba bsurface bwater bplant bprimarily bfor b- bcorrect
banswers✔✔Taste band bodor bcontrol
Which bor bthe bfollowing bchemicals bare bcommonly bused bas bcoagulants bin bsurface
bwater btreatment b- bcorrect banswers✔✔Alum band bferric bchloride
Ground bstorage btanks bare brequired bto bprovided bwith bwhich bof bthe bfollowing b-
bcorrect banswers✔✔Screened bvents, ban bapproved blocking broof bhatch, ban boverflow
bpipe bwith bhinged bflap bdevice, bannual binspection band bmaintenance bas bneeded
An belevated bstorage btank bshould bbe bprotected bagainst bcorrosion bby b- bcorrect
banswers✔✔Painting, bcathodic bprotection, bwater bstabilization, band bonly busing
bgalvanized band blead bbased bprimed bcomponents
A bpublic bwater bsupply bsystem bshould bmaintain bresidual bpressure bof b20 bpsi band ba
bminimum bof bnormal boperating bpressure bof b- bcorrect banswers✔✔35 bpsi
Before ba bnew bor brepaired bwater bline bis bplaced binto bservice, bit bmust bbe bproperly
bdisinfected bby bproviding ba bchlorine bdosage bof b_________ band bproper bdetention
btime b- bcorrect banswers✔✔50 bmg/L
Water bbearing bformations bbeneath bthe bearths bsurface bthat bare bused bas ba bsource
bof bwater bfor bpublic bwater bsupplies bare b- bcorrect banswers✔✔Aquifers
Questions And Answers
State bAgency bresponsince bfor benforcing bthe bsafe bdrinking bwater bact bin bTexas b-
bcorrect banswers✔✔Texas bCommission bon benvironmental bQuality
What bminerals bcan bcause bwater bhardness b- bcorrect banswers✔✔Calcium band
bmagnesium
A bpublic bwater bsystem bmust bat ball btimes bprovide b- bcorrect banswers✔✔Adequate
bquantity bof bwater, bpressure, band bdisinfection
A bsource bgroundwater bwould bbe b- bcorrect banswers✔✔aquifer
Fecal bcoliform borganisms bsometimes bfound bin bwater bsupplies bare ban bindication
bthat b- bcorrect banswers✔✔Water bsupply bis bcontaminated, bharmful bbacteria bmay bbe
bpresent, bpossible bpathogenic borganisms bin bthe bwater, bwater bis bunsuitable bfor
bdrinking
A bdisease bthat bmay bbe bspread bby binadequately bdisinfected bwater b- bcorrect
banswers✔✔Dysentery
A bcommon bchemical bused bin bdisinfection bof bsmall bwater bsupply bis b- bcorrect
banswers✔✔Calcium bhypochlorite
A bphysical bconnection bbetween ba bpotable bwater bsupply band bhouse bwell bwould bbe
b- bcorrect banswers✔✔A bcross bconnection
The bamount bof bchlorine bin bmg/L bthat bis bused bup bby breacting bwith biron borganics
bof bbacteria bis bcalled b- bcorrect banswers✔✔Demand
Which bof bthe bfollowing bis ba bphysical bcharacteristic bof bchlorine bgas b- bcorrect
banswers✔✔Greenish-Yellow bColor, bheavier bthan bair, bpungent bpenetrating bodor,
bcorrosive
Which bof bthe bfollowing bwould bbe bconsidered ba bpart bof ba bhypo-chlorinator bsystem
b- bcorrect banswers✔✔Solution bfeed bpump
, According bto bstate brequirements, ball bpublic bwater bSupply bwells bshould bbe bprovided
bwith ba braised bconcrete bsealing bblock, bscreened bvents, band- b- bcorrect
banswers✔✔A bflow bmeasuring bdevice
Drawdown bof ba bwater bwell bis bdetermined bby b- bcorrect banswers✔✔Difference bin
bstatic band bpumping blevels
pH bof bwater bindicates b- bcorrect banswers✔✔If bit's bacidic bor bbasic
The bpH bof bwater bis bexpressed bon ba bpH bscale bof b- bcorrect banswers✔✔0-14
Water bthat bis bconsidered bneutral bis bexpressed bon bthe bpH bscale bat b- bcorrect
banswers✔✔7.0
Which bof bthe bfollowing bis ba brequired bStep bin bcollecting ba broutine bdistribution
bsample bfor bbacteriological btesting? b- bcorrect banswers✔✔Use bof ban bapproved,
bsterile bsample bcontainer
Sand bfiltration bwill bremove bwhich bof bthe bfollowing bfrom bsurface bwater b- bcorrect
banswers✔✔Turbidity
Activated bcarbon bis bused bin ba bsurface bwater bplant bprimarily bfor b- bcorrect
banswers✔✔Taste band bodor bcontrol
Which bor bthe bfollowing bchemicals bare bcommonly bused bas bcoagulants bin bsurface
bwater btreatment b- bcorrect banswers✔✔Alum band bferric bchloride
Ground bstorage btanks bare brequired bto bprovided bwith bwhich bof bthe bfollowing b-
bcorrect banswers✔✔Screened bvents, ban bapproved blocking broof bhatch, ban boverflow
bpipe bwith bhinged bflap bdevice, bannual binspection band bmaintenance bas bneeded
An belevated bstorage btank bshould bbe bprotected bagainst bcorrosion bby b- bcorrect
banswers✔✔Painting, bcathodic bprotection, bwater bstabilization, band bonly busing
bgalvanized band blead bbased bprimed bcomponents
A bpublic bwater bsupply bsystem bshould bmaintain bresidual bpressure bof b20 bpsi band ba
bminimum bof bnormal boperating bpressure bof b- bcorrect banswers✔✔35 bpsi
Before ba bnew bor brepaired bwater bline bis bplaced binto bservice, bit bmust bbe bproperly
bdisinfected bby bproviding ba bchlorine bdosage bof b_________ band bproper bdetention
btime b- bcorrect banswers✔✔50 bmg/L
Water bbearing bformations bbeneath bthe bearths bsurface bthat bare bused bas ba bsource
bof bwater bfor bpublic bwater bsupplies bare b- bcorrect banswers✔✔Aquifers
