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