CWEA LAB ANALYST III CERTIFICATION
EXAM- CALIFORNIA WATER
ENVIRONMENT AOCIATION
BANK | COMPLETE CWEA ANALYST III
CERTIFICATION ACCURATE REAL EXAM
QUESTIONS ANSWERS LATEST
What does COLOR measure? - ✔✔✔ Correct Answer > Amount of color units
(CU) in a sample. Color caused by natural metallic ions (Fe & Mg) &
industrial wastes.
What is the test summary for COLOR? - ✔✔✔ Correct Answer > Sample ->
Tubes
-> Compare to color standards over light source
A preliminary test designed to establish approximate toxicity of a solution is called
a: - ✔✔✔ Correct Answer > range finding test.
The average flow in a treatment plant is 3.1 MGD. A chlorine residual of 4.0 mg/L
is maintained and the effluent must be dechlorinated before discharging. If an
excess of 0.5 mg/L of sulfur dioxide is required after dechlorination, how many
lbs/day of sulfur dioxide must be added? - ✔✔✔ Correct Answer > 106 lbs
SO2/day
A plant serving a city of 50,000 population has an influent settleable solids of 10
mL/L. If per capita contribution to the plant flow is 100 gallons/day, how much
sludge is produced in the plant in cubic feet/day? - ✔✔✔ Correct Answer > 6,684
cu ft/day
, Which of the following formulas determines chlorine demand? - ✔✔✔ Correct
Answer > Chlorine dose - chlorine residual = chlorine demand
What is the most important measurable parameter to judge the performance of an
anaerobic sludge digester? - ✔✔✔ Correct Answer > Volatile solids reduction
What is a multicopy shipping document that accompanies hazardous waste
shipments called? - ✔✔✔ Correct Answer > Manifest
The HAZWOPER Standard, 29 CFR 1910.120 addresses which of the following
situations? - ✔✔✔ Correct Answer > Requires documentation of training for
the handling of major spills and acutely hazardous materials
Which of the below statements is NOT correct when collecting samples for the
detection of mercury by EPA 245.1 or SM 3112B? - ✔✔✔ Correct Answer > a.
Collect in polyethylene bottle and preserve with nitric acid and measure
within 2 weeks.
b. Collect in glass bottle and preserve with nitric acid and measure within 28
days.
c. Collect in fluoropolymer bottle and preserve with nitric acid and measure
within 28 days.
d. All of the above are true.
A toxicity test designed to establish concentration at which a particular end point
occurs is called a: - ✔✔✔ Correct Answer > definitive test.
EXAM- CALIFORNIA WATER
ENVIRONMENT AOCIATION
BANK | COMPLETE CWEA ANALYST III
CERTIFICATION ACCURATE REAL EXAM
QUESTIONS ANSWERS LATEST
What does COLOR measure? - ✔✔✔ Correct Answer > Amount of color units
(CU) in a sample. Color caused by natural metallic ions (Fe & Mg) &
industrial wastes.
What is the test summary for COLOR? - ✔✔✔ Correct Answer > Sample ->
Tubes
-> Compare to color standards over light source
A preliminary test designed to establish approximate toxicity of a solution is called
a: - ✔✔✔ Correct Answer > range finding test.
The average flow in a treatment plant is 3.1 MGD. A chlorine residual of 4.0 mg/L
is maintained and the effluent must be dechlorinated before discharging. If an
excess of 0.5 mg/L of sulfur dioxide is required after dechlorination, how many
lbs/day of sulfur dioxide must be added? - ✔✔✔ Correct Answer > 106 lbs
SO2/day
A plant serving a city of 50,000 population has an influent settleable solids of 10
mL/L. If per capita contribution to the plant flow is 100 gallons/day, how much
sludge is produced in the plant in cubic feet/day? - ✔✔✔ Correct Answer > 6,684
cu ft/day
, Which of the following formulas determines chlorine demand? - ✔✔✔ Correct
Answer > Chlorine dose - chlorine residual = chlorine demand
What is the most important measurable parameter to judge the performance of an
anaerobic sludge digester? - ✔✔✔ Correct Answer > Volatile solids reduction
What is a multicopy shipping document that accompanies hazardous waste
shipments called? - ✔✔✔ Correct Answer > Manifest
The HAZWOPER Standard, 29 CFR 1910.120 addresses which of the following
situations? - ✔✔✔ Correct Answer > Requires documentation of training for
the handling of major spills and acutely hazardous materials
Which of the below statements is NOT correct when collecting samples for the
detection of mercury by EPA 245.1 or SM 3112B? - ✔✔✔ Correct Answer > a.
Collect in polyethylene bottle and preserve with nitric acid and measure
within 2 weeks.
b. Collect in glass bottle and preserve with nitric acid and measure within 28
days.
c. Collect in fluoropolymer bottle and preserve with nitric acid and measure
within 28 days.
d. All of the above are true.
A toxicity test designed to establish concentration at which a particular end point
occurs is called a: - ✔✔✔ Correct Answer > definitive test.
