Class C Water Operator License Exam
With verified and well researched
questions and answers
Ammonia mixed with chlorine gas creates a - CORRECT ANSWERS-white smoke
The most difficult part of a water distribution operator's job. - CORRECT ANSWERS-furnish a continuous
supply
Physical connection between a safe and potentially unsafe water source. - CORRECT ANSWERS-cross
connection
A distribution system is a - CORRECT ANSWERS-looped system
Dead end mains should be flushed - CORRECT ANSWERS-every month
Excess nitrate causes a condition called - CORRECT ANSWERS-blue baby syndrome
Water hardness is caused by - CORRECT ANSWERS-calcium and magnesium
Sewer mains should be __ft away from water mains. - CORRECT ANSWERS-9
Water with a pH less than 7 is considered to be - CORRECT ANSWERS-acidic
Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - CORRECT ANSWERS-5, 10
, Bacti samples have to be returned to the lab within ___hrs of the collection time. - CORRECT ANSWERS-
30
Color in the water supply should be less than _____ units. - CORRECT ANSWERS-15
Chlorine is ______ times heavier than air. - CORRECT ANSWERS-2.5
90% of underground pipe failures are related to improper - CORRECT ANSWERS-backfill and bedding
The spoil bank should be located at least ___ft away from the ditch. - CORRECT ANSWERS-2
The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total chlorine. -
CORRECT ANSWERS-.2, .5
Public opinion of the water utility is _______ at a standstill. - CORRECT ANSWERS-never
A bacti sample should be taken every ____ft of pipe. - CORRECT ANSWERS-1000
The most common collection point for a bacti sample is the water tap _______. - CORRECT ANSWERS-
outside the house
A standpipe is considered ground storage unless it exceeds _____ft above the highest ________. -
CORRECT ANSWERS-80, service connection
________ protection is the electrochemical method for preventing ________ of metal tanks. - CORRECT
ANSWERS-cathodic, corrosion
With verified and well researched
questions and answers
Ammonia mixed with chlorine gas creates a - CORRECT ANSWERS-white smoke
The most difficult part of a water distribution operator's job. - CORRECT ANSWERS-furnish a continuous
supply
Physical connection between a safe and potentially unsafe water source. - CORRECT ANSWERS-cross
connection
A distribution system is a - CORRECT ANSWERS-looped system
Dead end mains should be flushed - CORRECT ANSWERS-every month
Excess nitrate causes a condition called - CORRECT ANSWERS-blue baby syndrome
Water hardness is caused by - CORRECT ANSWERS-calcium and magnesium
Sewer mains should be __ft away from water mains. - CORRECT ANSWERS-9
Water with a pH less than 7 is considered to be - CORRECT ANSWERS-acidic
Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - CORRECT ANSWERS-5, 10
, Bacti samples have to be returned to the lab within ___hrs of the collection time. - CORRECT ANSWERS-
30
Color in the water supply should be less than _____ units. - CORRECT ANSWERS-15
Chlorine is ______ times heavier than air. - CORRECT ANSWERS-2.5
90% of underground pipe failures are related to improper - CORRECT ANSWERS-backfill and bedding
The spoil bank should be located at least ___ft away from the ditch. - CORRECT ANSWERS-2
The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total chlorine. -
CORRECT ANSWERS-.2, .5
Public opinion of the water utility is _______ at a standstill. - CORRECT ANSWERS-never
A bacti sample should be taken every ____ft of pipe. - CORRECT ANSWERS-1000
The most common collection point for a bacti sample is the water tap _______. - CORRECT ANSWERS-
outside the house
A standpipe is considered ground storage unless it exceeds _____ft above the highest ________. -
CORRECT ANSWERS-80, service connection
________ protection is the electrochemical method for preventing ________ of metal tanks. - CORRECT
ANSWERS-cathodic, corrosion
