Water Plant Operator Certification Exam
Prep – AWWA UPDATED ACTUAL Exam
Questions and CORRECT Answers
Spontaneous combustion can occur if activated carbon is mixed with... - CORRECT
ANSWER Potassium permanganate
If chemical solutions gets on a person's skin, the area should be flushed _______________, and
if the chemical dust are inhaled ______________________. - CORRECT ANSWER with
large quantities of water, consult a physician immediately
Who esablishes MCLs? - CORRECT ANSWER State and federal regulations
If a filter's turbidity exceeds _____ NTU in the first 4 hours of a given filter run for two
consecutive _________samples, the results must be reported within ________days following the
month of occurrence. - CORRECT ANSWER 0.5, 15 minute, 10
Compliance for chlorite is based on the _________________of __________ monitoring
locations each _______________. - CORRECT ANSWER average, 3, month
What regulation specifies the percentage removal of TOC? - CORRECT ANSWER Stage
1 Disinfectants and By Products Rule
What are the log requirements under Interim Enhanced Surface Water Treatment Rule for
Giardia and Cryptosporidium? - CORRECT ANSWER 3 log and 2 log respectively
Combined FE turbidity must be equal to .03 NTU for ______% of samples collected each month,
and none of samples can be _______. - CORRECT ANSWER 95, >1
If Soda Ash gets into the eyes - CORRECT ANSWER Flush 15 minutes with warm water
, If variables and waivers are not granted, the Public Water System should sample every
___________ years in regard to Phase I, II, V contaminants. - CORRECT ANSWER 3
In order to comply with enhanced coagulation requirements, a softening plant would need to
remove _________of _________________ hardness. - CORRECT ANSWER 10 mg/L ;
magnesium
Treatment plants must remove specific percentages of TOC based on their
_____________________, ___________________ and _____________________ levels under
the enhanced coagulation requirements. - CORRECT ANSWER sourcewater, TOC,
alkalinity
The locational running annual average applies to what USEPA regulation? - CORRECT
ANSWER Stage 2 Disinfectants and Disinfection By Products Rule
Records need to be reported for any testing required for filter exemptions under... - CORRECT
ANSWER The Interim Enhanced Surface Water Treatment Rule
Unit of Gamma Radiation - CORRECT ANSWER REM
The pump shaft's main function - CORRECT ANSWER to transmit torque from the motor
to the impeller
Packing replacement is done - CORRECT ANSWER when no further tightening can be
done on the packing gland
Packing rings should be staggered at - CORRECT ANSWER 90 degrees
Packing is designed to - CORRECT ANSWER wear with normal use and deteriorate with
normal use
Prep – AWWA UPDATED ACTUAL Exam
Questions and CORRECT Answers
Spontaneous combustion can occur if activated carbon is mixed with... - CORRECT
ANSWER Potassium permanganate
If chemical solutions gets on a person's skin, the area should be flushed _______________, and
if the chemical dust are inhaled ______________________. - CORRECT ANSWER with
large quantities of water, consult a physician immediately
Who esablishes MCLs? - CORRECT ANSWER State and federal regulations
If a filter's turbidity exceeds _____ NTU in the first 4 hours of a given filter run for two
consecutive _________samples, the results must be reported within ________days following the
month of occurrence. - CORRECT ANSWER 0.5, 15 minute, 10
Compliance for chlorite is based on the _________________of __________ monitoring
locations each _______________. - CORRECT ANSWER average, 3, month
What regulation specifies the percentage removal of TOC? - CORRECT ANSWER Stage
1 Disinfectants and By Products Rule
What are the log requirements under Interim Enhanced Surface Water Treatment Rule for
Giardia and Cryptosporidium? - CORRECT ANSWER 3 log and 2 log respectively
Combined FE turbidity must be equal to .03 NTU for ______% of samples collected each month,
and none of samples can be _______. - CORRECT ANSWER 95, >1
If Soda Ash gets into the eyes - CORRECT ANSWER Flush 15 minutes with warm water
, If variables and waivers are not granted, the Public Water System should sample every
___________ years in regard to Phase I, II, V contaminants. - CORRECT ANSWER 3
In order to comply with enhanced coagulation requirements, a softening plant would need to
remove _________of _________________ hardness. - CORRECT ANSWER 10 mg/L ;
magnesium
Treatment plants must remove specific percentages of TOC based on their
_____________________, ___________________ and _____________________ levels under
the enhanced coagulation requirements. - CORRECT ANSWER sourcewater, TOC,
alkalinity
The locational running annual average applies to what USEPA regulation? - CORRECT
ANSWER Stage 2 Disinfectants and Disinfection By Products Rule
Records need to be reported for any testing required for filter exemptions under... - CORRECT
ANSWER The Interim Enhanced Surface Water Treatment Rule
Unit of Gamma Radiation - CORRECT ANSWER REM
The pump shaft's main function - CORRECT ANSWER to transmit torque from the motor
to the impeller
Packing replacement is done - CORRECT ANSWER when no further tightening can be
done on the packing gland
Packing rings should be staggered at - CORRECT ANSWER 90 degrees
Packing is designed to - CORRECT ANSWER wear with normal use and deteriorate with
normal use
