(Wastewater) Collection System Questions w
B B B B
ith Correct Answers 2025
B B B
NameB theB fourB typesB ofB linesB inB aB communityB wastewaterB system.B -B CORRECTB ANSWERB --
BLateralB lines
- Sub-mainB "branches"
- MainB Line
- Trunk
MinimumB velocityB ofB wastewaterB inB collectionB system?B -B CORRECTB ANSWERB -2ftB perB second
MaximumB velocity?B -B CORRECTB ANSWERB -10ftB perB second
WhereB shouldB manholesB beB installed?B -B CORRECTB ANSWERB --B EndB ofB eachB line
- ChangesB inB grade,B size,B orB alignment
WastewaterB linesB needB toB beB howB farB fromB lateralB waterB lines?B -B CORRECTB ANSWERB -10B feet
WastewaterB linesB needB toB beB howB farB fromB proposedB petroleumB storageB tanksB orB waterB wellB
s?B -B CORRECTB ANSWERB -50B feet
WaterB thatB flowsB intoB aB wastewaterB collectionB system.B -B CORRECTB ANSWERB -Inflow
GroundB waterB thatB hasB enteredB aB wastewaterB collectionB systemB throughB defectiveB pipes,B pipB
eB joints,B connectionsB orB manholeB walls.B -B CORRECTB ANSWERB -Infiltration
WastewaterB thatB isB similarlyB leakingB outB ofB aB collectionB systemB andB intoB theB environment.B -
BCORRECTB ANSWERB -Exfiltration
B B B B
ith Correct Answers 2025
B B B
NameB theB fourB typesB ofB linesB inB aB communityB wastewaterB system.B -B CORRECTB ANSWERB --
BLateralB lines
- Sub-mainB "branches"
- MainB Line
- Trunk
MinimumB velocityB ofB wastewaterB inB collectionB system?B -B CORRECTB ANSWERB -2ftB perB second
MaximumB velocity?B -B CORRECTB ANSWERB -10ftB perB second
WhereB shouldB manholesB beB installed?B -B CORRECTB ANSWERB --B EndB ofB eachB line
- ChangesB inB grade,B size,B orB alignment
WastewaterB linesB needB toB beB howB farB fromB lateralB waterB lines?B -B CORRECTB ANSWERB -10B feet
WastewaterB linesB needB toB beB howB farB fromB proposedB petroleumB storageB tanksB orB waterB wellB
s?B -B CORRECTB ANSWERB -50B feet
WaterB thatB flowsB intoB aB wastewaterB collectionB system.B -B CORRECTB ANSWERB -Inflow
GroundB waterB thatB hasB enteredB aB wastewaterB collectionB systemB throughB defectiveB pipes,B pipB
eB joints,B connectionsB orB manholeB walls.B -B CORRECTB ANSWERB -Infiltration
WastewaterB thatB isB similarlyB leakingB outB ofB aB collectionB systemB andB intoB theB environment.B -
BCORRECTB ANSWERB -Exfiltration
