1 water distribution practice test questions with correct
// // // // // // //
answers
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The /
/minimum /
/and /
/maximum /
/chloride /
/residual /
/in //
a/
/water /
/distribution //system //is //? //- //CORRECT //ANSWERS(S)✔✔0.2 //mg/l //and //4mg/L //of //free //chlorine
Nitrate /
/may /
/not /
/exceed /
/what //concentration //when //tested //yearly //for //a //groundwater //treatment //plant //? //- //CORRECT
//ANSWERS(S)✔✔10 //mg/L
The /
/minimum /
/number /
/of /
/total /
/coliform /
/samples /
/that /
/must /
/be /
/collected /
,/per /
/month /
/is /
/based /
/on /
/Wich /
/of //the //following //? //- //CORRECT //ANSWERS(S)✔✔The //population //served //by //the //system
When //
a/
/distribution /
/bacteriological /
/sample /
/is /
/positive /
/for //
a/
/total /
/coliform /
/the /
/procedure /
/is //? //- /
/CORRECT /
/ANSWERS(S)✔✔Repeat /
/the /
/sample /
/and //take //a //sample //5 //connections //upstream //and //downstream //to //confirm //total //coliform
For //lead //and //copper //sample //the //water //must //be //In //the //pipeline //for //at //least? //- //CORRECT
//ANSWERS(S)✔✔6 //hours
What /
/is /
/hydraulic /
/grade /
, /line //? //- /
/CORRECT //ANSWERS(S)✔✔A //line //to //which //the //water //level //would //rise //in //a //small //,vertical
//tube,connected //to //the //pipe
How /
/often /
/should /
/cathodic /
/protection //anodes //in //your //system //be //inspected? //- //CORRECT //ANSWERS(S)✔✔Every //year
Water /
/pipelines /
/are /
/generally /
/designed /
/to /
/carry //water //at //a //velocity //below //? //- //CORRECT //ANSWERS(S)✔✔2.5b //FPS. //Feet //per //second
Energy /
/use /
/in /
/water /
/systems /
/is /
/defined /
/best /
/by //? //- /
/CORRECT /
/ANSWERS(S)✔✔Energy /
/use /
/varies /
/among /
/systems /
/and //an //energy //inventory //study //would //need //to //be //conducted //to //determine //relationships