South Carolina
South Carolina Physical/Chemical
Wastewater
Operator Class C Exam Practice
Questions and
Answers [Verified Answers] Plus
Rationales Latest 2026/27
What is the primary role of a Physical/Chemical
Wastewater Operator Class C?
A. Design highways only
B.Operate and monitor treatment processes
that remove contaminants using physical
and chemical methods
C.Sell pumps only
D.Manage court files only
Rationale: Operators ensure wastewater is
treated safely and in compliance with permit
limits.
Physical treatment in wastewater commonly
includes:
A. Accounting only
B. Screening, sedimentation, filtration, and
flotation
C. Tax collection only
South Carolina Physical Chemical Wastewater Operator Class C Exam Practice
Questions and Answers
,South Carolina
D.Painting tanks only
Rationale: Physical processes remove solids or
separate materials without changing chemistry.
Chemical treatment commonly includes:
A. Landscaping only
B.Coagulation, pH adjustment, oxidation, and
precipitation
C.Vehicle fueling only
D.Filing permits only
Rationale: Chemical processes alter
contaminants to improve removal.
Why is wastewater treatment necessary?
A. Decoration only
B. To protect public health and receiving
waters
C.Increase odors only
D.Raise taxes only
Rationale: Untreated wastewater can spread
disease and pollute waterways.
What is influent?
A. Finished drinking water only
B. Wastewater entering the treatment process
South Carolina Physical Chemical Wastewater Operator Class C Exam Practice
Questions and Answers
, South Carolina
C. Rain on the roof only
D.Laboratory glassware only
Rationale: Influent is the incoming raw
wastewater stream.
What is effluent?
A. Sludge only
B. Treated wastewater leaving the plant
C.Fuel supply only
D.Raw sewage only
Rationale: Effluent is the discharge after
treatment.
A bar screen is used to remove:
A. Dissolved salts only
B. Large debris such as rags, sticks, and trash
C.Bacteria only
D.Chlorine only
Rationale: Screens protect downstream
equipment from clogging and damage.
Why are grit chambers used?
A. Decoration only
B. To remove sand, gravel, and heavy
inorganic particles
South Carolina Physical Chemical Wastewater Operator Class C Exam Practice
Questions and Answers
South Carolina Physical/Chemical
Wastewater
Operator Class C Exam Practice
Questions and
Answers [Verified Answers] Plus
Rationales Latest 2026/27
What is the primary role of a Physical/Chemical
Wastewater Operator Class C?
A. Design highways only
B.Operate and monitor treatment processes
that remove contaminants using physical
and chemical methods
C.Sell pumps only
D.Manage court files only
Rationale: Operators ensure wastewater is
treated safely and in compliance with permit
limits.
Physical treatment in wastewater commonly
includes:
A. Accounting only
B. Screening, sedimentation, filtration, and
flotation
C. Tax collection only
South Carolina Physical Chemical Wastewater Operator Class C Exam Practice
Questions and Answers
,South Carolina
D.Painting tanks only
Rationale: Physical processes remove solids or
separate materials without changing chemistry.
Chemical treatment commonly includes:
A. Landscaping only
B.Coagulation, pH adjustment, oxidation, and
precipitation
C.Vehicle fueling only
D.Filing permits only
Rationale: Chemical processes alter
contaminants to improve removal.
Why is wastewater treatment necessary?
A. Decoration only
B. To protect public health and receiving
waters
C.Increase odors only
D.Raise taxes only
Rationale: Untreated wastewater can spread
disease and pollute waterways.
What is influent?
A. Finished drinking water only
B. Wastewater entering the treatment process
South Carolina Physical Chemical Wastewater Operator Class C Exam Practice
Questions and Answers
, South Carolina
C. Rain on the roof only
D.Laboratory glassware only
Rationale: Influent is the incoming raw
wastewater stream.
What is effluent?
A. Sludge only
B. Treated wastewater leaving the plant
C.Fuel supply only
D.Raw sewage only
Rationale: Effluent is the discharge after
treatment.
A bar screen is used to remove:
A. Dissolved salts only
B. Large debris such as rags, sticks, and trash
C.Bacteria only
D.Chlorine only
Rationale: Screens protect downstream
equipment from clogging and damage.
Why are grit chambers used?
A. Decoration only
B. To remove sand, gravel, and heavy
inorganic particles
South Carolina Physical Chemical Wastewater Operator Class C Exam Practice
Questions and Answers
