Class 1 Wastewater Test UPDATED
ACTUAL Questions and CORRECT
Answers
In the formula Q=V(A), Q is defined as rate of flow expressed as? - CORRECT
ANSWER✔✔- Cu. Ft. / sec.
What is the primary objective of the Clean Water Act of 1972? - CORRECT ANSWER✔✔-
Restore and maintain the chemical, physical, and biological integrity of water in the US
When cells use their own protoplasm and start to eat each other, as food to provide the energy
to maintain life, this is known as what type of growth? - CORRECT ANSWER✔✔-
Endogenous
Why is sampling of wastewater important? - CORRECT ANSWER✔✔- Evaluate the
wastewater treatment process
What is the purpose of the Biochemical Oxygen Demand Test? - CORRECT ANSWER✔✔-
Measures the amount of oxygen used by microorganisms
The type of pump that is most common in a wastewater treatment facility is a? - CORRECT
ANSWER✔✔- Centrifugal
What does NPDES stand for? - CORRECT ANSWER✔✔- National Pollutant Discharge
Elimination System
Head is a measure of pressure always expressed in? - CORRECT ANSWER✔✔- Feet
A mixture of activated sludge and wastewater is called? - CORRECT ANSWER✔✔- Mixed
liquor
Which test measures the solids in and out of the treatment process for plant efficiency? -
CORRECT ANSWER✔✔- Total suspended solids test
, Complete mix, step aeration, and contact stabilization are modifications of what process? -
CORRECT ANSWER✔✔- Activated sludge
One horsepower is equal to lifting? - CORRECT ANSWER✔✔- 33,000 pounds one foot in
one minute
Municipal wastewater consists of approximately what percentage of water? - CORRECT
ANSWER✔✔- 99.9%
Sewers that convey both sanitary wastes and storm waters are called? - CORRECT
ANSWER✔✔- Combined sewers
The component in the aeration system that breaks up the air bubbles is known as the? -
CORRECT ANSWER✔✔- Diffuser
As the temperature ????? Microorganisms accelerate consumption of Organics - CORRECT
ANSWER✔✔- Increases
Grab samples taken in sizes that correspond to the flow rate are known as? - CORRECT
ANSWER✔✔- Flow proportional
One electrical horsepower is equal to? - CORRECT ANSWER✔✔- 0.746 kilowatts
Disease causing organisms are called? - CORRECT ANSWER✔✔- Pathogens
MSDS stands for? - CORRECT ANSWER✔✔- Material Safety Data Sheet
Sludge retention time (SRT) in a conventional activated sludge system should be? -
CORRECT ANSWER✔✔- 5-15 days
ACTUAL Questions and CORRECT
Answers
In the formula Q=V(A), Q is defined as rate of flow expressed as? - CORRECT
ANSWER✔✔- Cu. Ft. / sec.
What is the primary objective of the Clean Water Act of 1972? - CORRECT ANSWER✔✔-
Restore and maintain the chemical, physical, and biological integrity of water in the US
When cells use their own protoplasm and start to eat each other, as food to provide the energy
to maintain life, this is known as what type of growth? - CORRECT ANSWER✔✔-
Endogenous
Why is sampling of wastewater important? - CORRECT ANSWER✔✔- Evaluate the
wastewater treatment process
What is the purpose of the Biochemical Oxygen Demand Test? - CORRECT ANSWER✔✔-
Measures the amount of oxygen used by microorganisms
The type of pump that is most common in a wastewater treatment facility is a? - CORRECT
ANSWER✔✔- Centrifugal
What does NPDES stand for? - CORRECT ANSWER✔✔- National Pollutant Discharge
Elimination System
Head is a measure of pressure always expressed in? - CORRECT ANSWER✔✔- Feet
A mixture of activated sludge and wastewater is called? - CORRECT ANSWER✔✔- Mixed
liquor
Which test measures the solids in and out of the treatment process for plant efficiency? -
CORRECT ANSWER✔✔- Total suspended solids test
, Complete mix, step aeration, and contact stabilization are modifications of what process? -
CORRECT ANSWER✔✔- Activated sludge
One horsepower is equal to lifting? - CORRECT ANSWER✔✔- 33,000 pounds one foot in
one minute
Municipal wastewater consists of approximately what percentage of water? - CORRECT
ANSWER✔✔- 99.9%
Sewers that convey both sanitary wastes and storm waters are called? - CORRECT
ANSWER✔✔- Combined sewers
The component in the aeration system that breaks up the air bubbles is known as the? -
CORRECT ANSWER✔✔- Diffuser
As the temperature ????? Microorganisms accelerate consumption of Organics - CORRECT
ANSWER✔✔- Increases
Grab samples taken in sizes that correspond to the flow rate are known as? - CORRECT
ANSWER✔✔- Flow proportional
One electrical horsepower is equal to? - CORRECT ANSWER✔✔- 0.746 kilowatts
Disease causing organisms are called? - CORRECT ANSWER✔✔- Pathogens
MSDS stands for? - CORRECT ANSWER✔✔- Material Safety Data Sheet
Sludge retention time (SRT) in a conventional activated sludge system should be? -
CORRECT ANSWER✔✔- 5-15 days
