Class C Water Operator License Practice
Exam With Questions And Correct
Verified Answers | Latest Update 2026
|Already Graded A+ | 100% Assured
Success | Brand New Version!!!!!!!
Ammonia mixed with chlorine gas creates a - CORRECTANSWER white smoke
The most difficult part of a water distribution operator's job. - CORRECTANSWER furnish a
continuous supply
Physical connection between a safe and potentially unsafe water source. - CORRECTANSWER
cross connection
A distribution system is a - CORRECTANSWER looped system
Dead end mains should be flushed - CORRECTANSWER every month
Excess nitrate causes a condition called - CORRECTANSWER blue baby syndrome
Water hardness is caused by - CORRECTANSWER calcium and magnesium
, Sewer mains should be __ft away from water mains. - CORRECTANSWER 9
Water with a pH less than 7 is considered to be - CORRECTANSWER acidic
Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - CORRECTANSWER
5, 10
Bacti samples have to be returned to the lab within ___hrs of the collection time. -
CORRECTANSWER 30
Color in the water supply should be less than _____ units. - CORRECTANSWER 15
Chlorine is ______ times heavier than air. - CORRECTANSWER 2.5
90% of underground pipe failures are related to improper - CORRECTANSWER backfill and
bedding
The spoil bank should be located at least ___ft away from the ditch. - CORRECTANSWER 2
The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total
chlorine. - CORRECTANSWER .2, .5
Public opinion of the water utility is _______ at a standstill. - CORRECTANSWER never
A bacti sample should be taken every ____ft of pipe. - CORRECTANSWER 1000
Exam With Questions And Correct
Verified Answers | Latest Update 2026
|Already Graded A+ | 100% Assured
Success | Brand New Version!!!!!!!
Ammonia mixed with chlorine gas creates a - CORRECTANSWER white smoke
The most difficult part of a water distribution operator's job. - CORRECTANSWER furnish a
continuous supply
Physical connection between a safe and potentially unsafe water source. - CORRECTANSWER
cross connection
A distribution system is a - CORRECTANSWER looped system
Dead end mains should be flushed - CORRECTANSWER every month
Excess nitrate causes a condition called - CORRECTANSWER blue baby syndrome
Water hardness is caused by - CORRECTANSWER calcium and magnesium
, Sewer mains should be __ft away from water mains. - CORRECTANSWER 9
Water with a pH less than 7 is considered to be - CORRECTANSWER acidic
Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - CORRECTANSWER
5, 10
Bacti samples have to be returned to the lab within ___hrs of the collection time. -
CORRECTANSWER 30
Color in the water supply should be less than _____ units. - CORRECTANSWER 15
Chlorine is ______ times heavier than air. - CORRECTANSWER 2.5
90% of underground pipe failures are related to improper - CORRECTANSWER backfill and
bedding
The spoil bank should be located at least ___ft away from the ditch. - CORRECTANSWER 2
The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total
chlorine. - CORRECTANSWER .2, .5
Public opinion of the water utility is _______ at a standstill. - CORRECTANSWER never
A bacti sample should be taken every ____ft of pipe. - CORRECTANSWER 1000
