Water Plant Operator Certification Exam Prep - AWWA Questions and Answers 100% Correct
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Course
AWWA
Institution
AWWA
Water Plant Operator Certification Exam Prep - AWWA Questions and Answers 100% Correct
Spontaneous combustion can occur if activated carbon is mixed with...
Potassium permanganate
If chemical solutions gets on a person's skin, the area should be flushed _______________, and if the chemical...
Water Plant Operator Certification Exam
Prep - AWWA Questions and Answers
100% Correct
Spontaneous combustion can occur if activated carbon is mixed with... - answer
Potassium permanganate
If chemical solutions gets on a person's skin, the area should be flushed
_______________, and if the chemical dust are inhaled ______________________. -
answer with large quantities of water, consult a physician immediately
Who establishes MCLs? - 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. - answer0.5, 15 minute, 10
Compliance for chlorite is based on the _________________of __________ monitoring
locations each _______________. - answer average, 3, month
What regulation specifies the percentage removal of TOC? - answerStage 1
Disinfectants and By Products Rule
What are the log requirements under Interim Enhanced Surface Water Treatment Rule
for Giardia and Cryptosporidium? - answer3 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 _______. - answer95, >1
If Soda Ash gets into the eyes - answerFlush 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. - answer3
In order to comply with enhanced coagulation requirements, a softening plant would
need to remove _________of _________________ hardness. - answer10 mg/L ;
magnesium
Treatment plants must remove specific percentages of TOC based on their
_____________________, ___________________ and _____________________
, levels under the enhanced coagulation requirements. - answersourcewater, TOC,
alkalinity
The locational running annual average applies to what USEPA regulation? -
answerStage 2 Disinfectants and Disinfection By Products Rule
Records need to be reported for any testing required for filter exemptions under... -
answerThe Interim Enhanced Surface Water Treatment Rule
Unit of Gamma Radiation - answerREM
The pump shaft's main function - answerto transmit torque from the motor to the
impeller
Packing replacement is done - answerwhen no further tightening can be done on the
packing gland
Packing rings should be staggered at - answer90 degrees
Packing is designed to - answerwear with normal use and deteriorate with normal use
When is chlorine dioxide stable? - answerin the absence of light and elevated
temperatures
Ultraviolet Treatment - answerrequires a monitoring procedure other than monitoring to
determine its efficiency
A disinfectant oxidant not affected by pH - answerchlorine dioxide
Graded gravel below the sand in a media filter does what? - answer- supports the
underdrain system
- supports the sand bed
- prevents sand from entering the underdrain
Surface wash systems for filters agitate the top _____ inches of the media. - answer2
After the air alone portion of the wash cycle is complete, water is introduced at a rate of
______ to _____ gpm/ft, which is called concurrent air/water wash - answer5 to 7
A diffuser feeding a pipeline with chlorine gas solution should have complete mixing
downstream at a distance of _______ pipe diameters. - answer10
Flow proportional control - answerchlorine gas controller if chlorine demand rarely
changes and it is necessary to compensate only for changes in the pumping rate.
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