Class D Water Operator License Exam TCEQ with Questions and Correct Answers 2025.

Class D Water Operator License Exam
TCEQ with Questions and Correct
Answers 2025




T/F: ,In ,Texas, ,about ,75% ,of ,all ,water ,is ,used ,for ,commercial, ,industrial, ,or
,agricultural ,purposes. ,- ,CORRECT ,ANSWER-True


Water ,covers ,approximately ,________ ,of ,Earth's ,surface. ,- ,CORRECT ,ANSWER-
71%

Drought ,is ,an ,extended ,period ,when ,a ,region ,receives ,a ,deficiency ,in ,its ,________
,water ,supply. ,- ,CORRECT ,ANSWER-atmospheric, ,ground, ,or ,surface


T/F: ,Only ,about ,1 ,gallon ,of ,tap ,water ,per ,person/day ,is ,used ,for ,drinking ,and ,cooking
,- ,CORRECT ,ANSWER-True


Excluding ,outside ,water ,use, ,the ,average ,household ,uses ,about ,_______ ,gallons ,of
,water ,per ,month ,for ,inside ,use ,- ,CORRECT ,ANSWER-2,000


T/F: ,Only ,3% ,of ,all ,the ,freshwater ,on ,earth ,can ,be ,easily ,accessed ,for ,use. ,-
,CORRECT ,ANSWER-False ,(only ,1%)


T/F: ,In ,1978, ,the ,Texas ,Department ,of ,Health ,(TDH) ,assumed ,primacy ,over ,the ,Safe
,Drinking ,Water ,Act ,from ,the ,EPA. ,- ,CORRECT ,ANSWER-True


T/F: ,PWS ,officials ,should ,be ,proactive ,in ,their ,approach ,to ,terrorism. ,- ,CORRECT
,ANSWER-True


_________ ,permits ,the ,owner ,of ,a ,well ,to ,pump ,as ,much ,water ,as ,desired, ,even ,if
,the ,water ,is ,drained ,from ,beneath ,the ,land ,of ,others. ,- ,CORRECT ,ANSWER-Rule ,of
,Capture


In ,Texas, ,agricultural ,water ,demand ,accounts ,for ,about ,___% ,of ,the ,total ,water ,used.
,- ,CORRECT ,ANSWER-57%


T/F: ,An ,example ,of ,a ,non-transient ,non-community ,PWS ,is ,a ,rural ,school. ,-
,CORRECT ,ANSWER-True

, Monitoring ,average ,and ,maximum ,daily ,water ,______ ,enables ,us ,to ,plan ,ahead ,for
,growth. ,- ,CORRECT ,ANSWER-Demand


T/F: ,The ,Safe ,Drinking ,Water ,Act ,sets ,standards ,for ,drinking ,water ,including ,physical,
,chemical, ,bacteriological, ,and ,radiological ,characteristics. ,- ,CORRECT ,ANSWER-
True

"Potable" ,means ,water ,is ,safe ,to ,drink ,and ,has ,a ,measurable ,chlorine ,________. ,-
,CORRECT ,ANSWER-Residual


The ,plant ,operator ,is ,responsible ,for ,a ,sufficient ,supply ,of ,safe ,and ,________
,drinking ,water. ,- ,CORRECT ,ANSWER-Palatable


T/F: ,The ,Texas ,State ,Board ,of ,Fire ,Insurance ,requires ,utilities ,that ,provide ,fire
,protection ,to ,have ,a ,minimum ,amount ,of ,water ,available ,based ,on ,30 ,gals ,per
,person ,per ,day. ,- ,CORRECT ,ANSWER-False ,(130 ,gals ,per ,person ,per ,day)


T/F: ,The ,primary ,state ,regulator ,of ,water ,utilities ,is ,the ,TCEQ. ,- ,CORRECT
,ANSWER-True


T/F: ,All ,community ,and ,non-transient ,non-community ,PWS, ,regardless ,of ,source ,of
,water, ,must ,be ,under ,the ,supervision ,of ,a ,licensed ,water ,works ,operator. ,-
,CORRECT ,ANSWER-True


Meter ,readers ,bring ,in ,operating ,revenue ,and ,profoundly ,impact ,_____ ,relations. ,-
,CORRECT ,ANSWER-Public


The ,federal ,regulator ,of ,drinking ,water ,is ,the ,_____. ,- ,CORRECT ,ANSWER-EPA

T/F: ,Duties ,of ,distribution ,operator ,include ,repairing ,leaks, ,making ,taps, ,flushing
,mains, ,and ,taking ,radiological ,samples. ,- ,CORRECT ,ANSWER-False ,(Repair ,leaks,
,Make ,taps, ,Flush ,mains, ,Operate ,pumps, ,Take ,*bacteriological* ,samples)


A ,service ,area ,has ,1000 ,service ,connections. ,What ,can ,we ,estimate ,the ,population
,of ,this ,service ,area ,to ,be? ,- ,CORRECT ,ANSWER-3,000 ,(multiply ,connections ,x ,3)


T/F: ,The ,State ,must ,be ,notified ,after ,an ,existing ,facility ,is ,changed ,or ,after
,construction ,of ,a ,new ,facility. ,- ,CORRECT ,ANSWER-False ,(must ,notify ,*before*)


T/F: ,A ,Class ,"D" ,license ,is ,valid ,for ,2 ,years ,at ,ground ,and ,purchase ,water ,systems
,with ,250 ,connections ,or ,less. ,- ,CORRECT ,ANSWER-False ,(3 ,years)


T/F: ,The ,physical ,characteristics ,of ,water ,are ,color, ,taste, ,odor, ,temperature, ,and
,turbidity. ,- ,CORRECT ,ANSWER-True