Questions with Answers Graded A+
Investigate immediately. - Answer If a consumer complains about the drinking water characteristics, the
operator should record the complaint and
Operating ratio - Answer What term is used when a water utility divides its total operating expenses into
the total revenue?
Daily - Answer How often should operating data, such as flow rate, amount of water treated, dosage of
chemical, and reservoir levels be recorded?
Document that safe drinking water has been delivered to customers - Answer Which of the following is
the most important reason to keep daily records of operational data?
Consumer's tap inside the home. - Answer 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
15 service connections or over 25 persons for over 60 days a year. - Answer 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
Water system owner - Answer What agent is responsible for for reporting lab results to the regulatory
agency?
3 months of the violation in a daily newspaper in the area served by the system. - Answer 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
OSHA - Answer What federal law is designed to protect the safety and health of operators?
Safe Drinking Water Act - Answer What federal law regulates public water supplies?
, Gravity - Answer What causes water to move through pores in soil and rocks?
Coliform bacteria - Answer What is commonly used indicator of possible health problems found in
plants, soil, water and the intestines of humans and warm-blooded animals?
Pathogenic - Answer What are disease producing bacteria called?
Calcium and Magnesium - Answer What are the two main causes of hardness in water?
Deep well in gravel - Answer Which source of water has the greatest natural protection from bacterial
contamination?
Rotameter - Answer What device measures the flow rate of gases?
According to the manufacturer recommendations - Answer How often should preventative maintenance
for equipment be performed?
total energy that a pump must develop for pumping to take place. - Answer Dynamic head is best
described as the
Water hammer - Answer Which of the following terms refers to the excessive internal pressure, which
may be several times the normal operating pressure and can seriously damage hydropneumatic tanks,
valves, and the piping network?
Electricity - Answer Which of the following should an operator investigate first when the well pump and
control problems occur?
start the flow of water. - Answer Most pumps must be primed before startup in order to
Act as an automatic shutoff valve when the pump stops - Answer What is the purpose of a check valve?