WasteWater certification Exam
Questions And 100% Verified Answers |
Latest 2025/ 2026 Update | Graded A+
Accidental Release Prevention Regulations. - CORRECT ANSWER-1140 kg
(2500 lb)
Conventional activated sludge systems typically operate with a DO
range of - CORRECT ANSWER-2-5 mg/l
Large debris (sticks, rocks, ect) large floating solids, and fibrous maters
(rags, strings, cloth, etc.) are categorized as - CORRECT ANSWER-
Screenings. This material is removed prior to pumps to prevent damage.
Pumps are often required to bring wastewater into a treatment plant.
What types of pumps are typically used to lift influent wastewater? -
CORRECT ANSWER-Centrifugal pumps are primarily used to bring in
wastewater, positive displacement pumps are used to transport sludge.
, The time it takes for a unit volume of wastewater to pass entirely
through a primary clarifier is called - CORRECT ANSWER-detention time.
After chlorine, what is the most common effluent wastewater
disinfection technique or agent used in the U.S. today? - CORRECT
ANSWER-Ultraviolet radiation. Due to fewer safety concerns
The BOD loading rate divided by the quantity of microorganism present
in the biological reactors (aeration tanks) is known as - CORRECT
ANSWER-the food to microorganism ratio (F:M)
White fluffy foam on the biological reactors in an activated sludge
process is usually caused by - CORRECT ANSWER-Low Dissolved Oxygen
Typical components of grit removal systems include - CORRECT
ANSWER-chain-and-flight scrapers
Questions And 100% Verified Answers |
Latest 2025/ 2026 Update | Graded A+
Accidental Release Prevention Regulations. - CORRECT ANSWER-1140 kg
(2500 lb)
Conventional activated sludge systems typically operate with a DO
range of - CORRECT ANSWER-2-5 mg/l
Large debris (sticks, rocks, ect) large floating solids, and fibrous maters
(rags, strings, cloth, etc.) are categorized as - CORRECT ANSWER-
Screenings. This material is removed prior to pumps to prevent damage.
Pumps are often required to bring wastewater into a treatment plant.
What types of pumps are typically used to lift influent wastewater? -
CORRECT ANSWER-Centrifugal pumps are primarily used to bring in
wastewater, positive displacement pumps are used to transport sludge.
, The time it takes for a unit volume of wastewater to pass entirely
through a primary clarifier is called - CORRECT ANSWER-detention time.
After chlorine, what is the most common effluent wastewater
disinfection technique or agent used in the U.S. today? - CORRECT
ANSWER-Ultraviolet radiation. Due to fewer safety concerns
The BOD loading rate divided by the quantity of microorganism present
in the biological reactors (aeration tanks) is known as - CORRECT
ANSWER-the food to microorganism ratio (F:M)
White fluffy foam on the biological reactors in an activated sludge
process is usually caused by - CORRECT ANSWER-Low Dissolved Oxygen
Typical components of grit removal systems include - CORRECT
ANSWER-chain-and-flight scrapers
