Waste Water Operator Level 1 EXAM COVERAGE
Exam
Wastewater Operator Level 1 Exam
Basic wastewater treatment principles and
terminology
Overview of treatment processes: preliminary,
primary, secondary
Collection systems: lift stations, pumps, pipelines
Screening, grit removal, and sedimentation
processes
Activated sludge basics and biological
treatment concepts
Sludge handling and disposal fundamentals
Disinfection methods
(chlorination/dechlorination, UV basics)
Basic laboratory testing (pH, DO, BOD, TSS)
Flow measurement and sampling procedures
Equipment operation and routine maintenance
Safety practices (PPE, confined space, hazard
communication)
Regulatory compliance and permit requirements
(NPDES basics)
Recordkeeping, reporting, and operator
responsibilities
Emergency response and troubleshooting
basics
,The best operating strategy for A. Several time a day
feeding primary sludge to an
anaerobic digester is to feed...
A. Several time a day
B. Large quantities once or twice a
day
C. Once a day
D. When the volatile solids drop
below 60%
, Why is scum skimmed from the B. To eliminate interference with sludge removal
liquid surface of a primary settling
tank?
A. To reduce load on the digester
B. To eliminate interference with
sludge removal
C. To allow aeration of the tank A. Prevent excessive solid buildup
contents
D. To reduce odor and insect
nuisance
In the activated sludge process,
some of the activated sludge must
be wasted to...
A. Prevent excessive solid buildup
B. Prevent clogging of the sludge
return line
C. Prevent overloading of sludge
return pumps
D. Increase digester gas
production
Exam
Wastewater Operator Level 1 Exam
Basic wastewater treatment principles and
terminology
Overview of treatment processes: preliminary,
primary, secondary
Collection systems: lift stations, pumps, pipelines
Screening, grit removal, and sedimentation
processes
Activated sludge basics and biological
treatment concepts
Sludge handling and disposal fundamentals
Disinfection methods
(chlorination/dechlorination, UV basics)
Basic laboratory testing (pH, DO, BOD, TSS)
Flow measurement and sampling procedures
Equipment operation and routine maintenance
Safety practices (PPE, confined space, hazard
communication)
Regulatory compliance and permit requirements
(NPDES basics)
Recordkeeping, reporting, and operator
responsibilities
Emergency response and troubleshooting
basics
,The best operating strategy for A. Several time a day
feeding primary sludge to an
anaerobic digester is to feed...
A. Several time a day
B. Large quantities once or twice a
day
C. Once a day
D. When the volatile solids drop
below 60%
, Why is scum skimmed from the B. To eliminate interference with sludge removal
liquid surface of a primary settling
tank?
A. To reduce load on the digester
B. To eliminate interference with
sludge removal
C. To allow aeration of the tank A. Prevent excessive solid buildup
contents
D. To reduce odor and insect
nuisance
In the activated sludge process,
some of the activated sludge must
be wasted to...
A. Prevent excessive solid buildup
B. Prevent clogging of the sludge
return line
C. Prevent overloading of sludge
return pumps
D. Increase digester gas
production
