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