Class C Water Operator Illinois Questions With Complete
Solutions
4" Meters should be tested every Correct Answers 2-4 Years
A boil order is issued Correct Answers When water pressure
drops below 20Psi
A magnetic contactor would be found in Correct Answers A
motor control box
A negative Langelier index may indicate Correct Answers
Corrosive water
A Peto Tube is used to measure Correct Answers Fire Hydrants
A positive Langelier index can be produced by Correct Answers
Adding caustic soda
A similarly seal on a well is for Correct Answers Preventing
contamination
Action Level for copper Correct Answers 1.3 mg/L
Action Level for Lead Correct Answers 0.015 mg/L
Air Gap Correct Answers Best back flow preventer
An increase in total dynamic head will Correct Answers
Decrease capacity
, At sea level the maximum suction lift is Correct Answers 34
Feet
At what point does fluoride boil Correct Answers -30 degrees F
Backflow- Correct Answers the reverse flow of contaminants
through a cross-connection into a drinkable water supply
Backsiphonage Correct Answers Water is siphoned back into
the distribution system
Bacteria reports must be kept for Correct Answers 5 Years
Bacteriological and Turbidity reports must be submitted to the
EPA within Correct Answers 10 Days of sampling period
Chemical Analyses Records must be kept Correct Answers 10
Years
Chloride is corrosive (True or False) Correct Answers True
combined chlorine= Correct Answers Free and combined
chlorine
During pumping operations a water lubricated mechanical seal
should Correct Answers Not leak any water
During pumping operations a water lubricated pump packing
should Correct Answers Leak water at a steady dripping rate
High Nitrate Levels cause Correct Answers Blue Babies
Solutions
4" Meters should be tested every Correct Answers 2-4 Years
A boil order is issued Correct Answers When water pressure
drops below 20Psi
A magnetic contactor would be found in Correct Answers A
motor control box
A negative Langelier index may indicate Correct Answers
Corrosive water
A Peto Tube is used to measure Correct Answers Fire Hydrants
A positive Langelier index can be produced by Correct Answers
Adding caustic soda
A similarly seal on a well is for Correct Answers Preventing
contamination
Action Level for copper Correct Answers 1.3 mg/L
Action Level for Lead Correct Answers 0.015 mg/L
Air Gap Correct Answers Best back flow preventer
An increase in total dynamic head will Correct Answers
Decrease capacity
, At sea level the maximum suction lift is Correct Answers 34
Feet
At what point does fluoride boil Correct Answers -30 degrees F
Backflow- Correct Answers the reverse flow of contaminants
through a cross-connection into a drinkable water supply
Backsiphonage Correct Answers Water is siphoned back into
the distribution system
Bacteria reports must be kept for Correct Answers 5 Years
Bacteriological and Turbidity reports must be submitted to the
EPA within Correct Answers 10 Days of sampling period
Chemical Analyses Records must be kept Correct Answers 10
Years
Chloride is corrosive (True or False) Correct Answers True
combined chlorine= Correct Answers Free and combined
chlorine
During pumping operations a water lubricated mechanical seal
should Correct Answers Not leak any water
During pumping operations a water lubricated pump packing
should Correct Answers Leak water at a steady dripping rate
High Nitrate Levels cause Correct Answers Blue Babies
