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Water Operator Class 3-Practice
Test 2026 Questions and Answers
(100% Correct Answers) Already
Graded A+
0.08 ppm Ans: MCL for TTHM's
0.06 ppm Ans: MCL for HAA5's
© 2026 Assignment
0.01 ppm Ans: MCL for Arsenic
Guru01 - Stuvia
Expert
0.015 ppm Ans: MCL for Lead
90 days Ans: Turbidity meter must be calibrated every:
Less than 0.3 for 95% of the time. Ans: MCL for turbidity is
2 buffers Ans: pH meters must be calibrated using
Algae blooms Ans: A grassy of fishy taste in reservoir water
indicates
Improper backwashing of filters Ans: Mudballs are caused by
Carbonate Ans: Lime can only be used to soften water with
0 ppm Ans: Water leaving Zeolite softener has a hardness of
Schmutzdecke Ans: The top layer of a slow sand filter is called
the
, 2
Coagulation, flocculation, sedimentation Ans: A solids contact
unit combines
4 ppm, 2 ppm Ans: The PMCL for fluoride is: The SMCL is:
Warmer Ans: Flock will settle better in warm or cool water?
High pH Ans: The greensand manganese removal process
requires a:
© 2026 Assignment
Volatile organic compounds & gases (odor) Ans: Aeration
releases what from water?
Guru01 - Stuvia
Expert
Amperomatic tiration Ans: The most accurate method of
determining chlorine residual is:
Sulfuric acid Ans: An alkalinity sample is titrated using
Mixing and measuring Ans: A beaker is used for
Nephelometric turbidity units Ans: NTU stands for:
5 years, 10 years Ans: Bacteria results must be kept for: Chem
results for:
Tubrbine, Propeller, Venturi, Nutating discs Ans: Four ways
water meters operate are:
Procedure, Part, Budget, Cost Ans: A preventative maintenance
program includes:
Lower insurance rates Ans: An advantage of a standpipe:
Geographic Informaton System Ans: What is GIS?
Water Operator Class 3-Practice
Test 2026 Questions and Answers
(100% Correct Answers) Already
Graded A+
0.08 ppm Ans: MCL for TTHM's
0.06 ppm Ans: MCL for HAA5's
© 2026 Assignment
0.01 ppm Ans: MCL for Arsenic
Guru01 - Stuvia
Expert
0.015 ppm Ans: MCL for Lead
90 days Ans: Turbidity meter must be calibrated every:
Less than 0.3 for 95% of the time. Ans: MCL for turbidity is
2 buffers Ans: pH meters must be calibrated using
Algae blooms Ans: A grassy of fishy taste in reservoir water
indicates
Improper backwashing of filters Ans: Mudballs are caused by
Carbonate Ans: Lime can only be used to soften water with
0 ppm Ans: Water leaving Zeolite softener has a hardness of
Schmutzdecke Ans: The top layer of a slow sand filter is called
the
, 2
Coagulation, flocculation, sedimentation Ans: A solids contact
unit combines
4 ppm, 2 ppm Ans: The PMCL for fluoride is: The SMCL is:
Warmer Ans: Flock will settle better in warm or cool water?
High pH Ans: The greensand manganese removal process
requires a:
© 2026 Assignment
Volatile organic compounds & gases (odor) Ans: Aeration
releases what from water?
Guru01 - Stuvia
Expert
Amperomatic tiration Ans: The most accurate method of
determining chlorine residual is:
Sulfuric acid Ans: An alkalinity sample is titrated using
Mixing and measuring Ans: A beaker is used for
Nephelometric turbidity units Ans: NTU stands for:
5 years, 10 years Ans: Bacteria results must be kept for: Chem
results for:
Tubrbine, Propeller, Venturi, Nutating discs Ans: Four ways
water meters operate are:
Procedure, Part, Budget, Cost Ans: A preventative maintenance
program includes:
Lower insurance rates Ans: An advantage of a standpipe:
Geographic Informaton System Ans: What is GIS?
