Practice Certification Exam for Water
Treatment questions and answers
If a consumer complains about the drinking water characteristics, the operator should record
the complaint and - correct answer ✔✔Investigate immediately.
What term is used when a water utility divides its total operating expenses into the total
revenue? - correct answer ✔✔Operating ratio
How often should operating data, such as flow rate, amount of water treated, dosage of
chemical, and reservoir levels be recorded? - correct answer ✔✔Daily
Which of the following is the most important reason to keep daily records of operational data? -
correct answer ✔✔Document that safe drinking water has been delivered to customers
Under the requirements of the Safe Drinking Water Act, it is the duty of the water purveyor to
deliver potable water of proper quantity only as far as the - correct answer ✔✔Consumer's tap
inside the home.
According to the Safe Drinking Water Act, the basic definition of a public water supply system is
any water system that supplies water for human consumption that serves - correct answer
✔✔15 service connections or over 25 persons for over 60 days a year.
What agent is responsible for for reporting lab results to the regulatory agency? - correct
answer ✔✔Water system owner
According to the USEPA drinking water regulations, the owner or operator of a public water
system which fails to comply with applicable monitoring requirements must give notice to the
, public within - correct answer ✔✔3 months of the violation in a daily newspaper in the area
served by the system.
What federal law is designed to protect the safety and health of operators? - correct answer
✔✔OSHA
What federal law regulates public water supplies? - correct answer ✔✔Safe Drinking Water Act
What causes water to move through pores in soil and rocks? - correct answer ✔✔Gravity
What is commonly used indicator of possible health problems found in plants, soil, water and
the intestines of humans and warm-blooded animals? - correct answer ✔✔Coliform bacteria
What are disease producing bacteria called? - correct answer ✔✔Pathogenic
What are the two main causes of hardness in water? - correct answer ✔✔Calcium and
Magnesium
Which source of water has the greatest natural protection from bacterial contamination? -
correct answer ✔✔Deep well in gravel
What device measures the flow rate of gases? - correct answer ✔✔Rotameter
How often should preventative maintenance for equipment be performed? - correct answer
✔✔According to the manufacturer recommendations
Dynamic head is best described as the - correct answer ✔✔total energy that a pump must
develop for pumping to take place.
Treatment questions and answers
If a consumer complains about the drinking water characteristics, the operator should record
the complaint and - correct answer ✔✔Investigate immediately.
What term is used when a water utility divides its total operating expenses into the total
revenue? - correct answer ✔✔Operating ratio
How often should operating data, such as flow rate, amount of water treated, dosage of
chemical, and reservoir levels be recorded? - correct answer ✔✔Daily
Which of the following is the most important reason to keep daily records of operational data? -
correct answer ✔✔Document that safe drinking water has been delivered to customers
Under the requirements of the Safe Drinking Water Act, it is the duty of the water purveyor to
deliver potable water of proper quantity only as far as the - correct answer ✔✔Consumer's tap
inside the home.
According to the Safe Drinking Water Act, the basic definition of a public water supply system is
any water system that supplies water for human consumption that serves - correct answer
✔✔15 service connections or over 25 persons for over 60 days a year.
What agent is responsible for for reporting lab results to the regulatory agency? - correct
answer ✔✔Water system owner
According to the USEPA drinking water regulations, the owner or operator of a public water
system which fails to comply with applicable monitoring requirements must give notice to the
, public within - correct answer ✔✔3 months of the violation in a daily newspaper in the area
served by the system.
What federal law is designed to protect the safety and health of operators? - correct answer
✔✔OSHA
What federal law regulates public water supplies? - correct answer ✔✔Safe Drinking Water Act
What causes water to move through pores in soil and rocks? - correct answer ✔✔Gravity
What is commonly used indicator of possible health problems found in plants, soil, water and
the intestines of humans and warm-blooded animals? - correct answer ✔✔Coliform bacteria
What are disease producing bacteria called? - correct answer ✔✔Pathogenic
What are the two main causes of hardness in water? - correct answer ✔✔Calcium and
Magnesium
Which source of water has the greatest natural protection from bacterial contamination? -
correct answer ✔✔Deep well in gravel
What device measures the flow rate of gases? - correct answer ✔✔Rotameter
How often should preventative maintenance for equipment be performed? - correct answer
✔✔According to the manufacturer recommendations
Dynamic head is best described as the - correct answer ✔✔total energy that a pump must
develop for pumping to take place.
