Drinking Water Treatment Operator Class 1Test Exams Questions and Answers

If a customer complains about the drinking water characteristics, the operator should record the complaint and... - ANSWER- Investigate immediately What term is used when a water utility divides its total operating expenses into a total revenue? - ANSWER- Operating ratio How often should data, such as flow rate, amount of water treated, dosage of chemical, and reservoir levels be recorded? - ANSWER- Daily Under the requirements of the Safe Water Drinking Act, it is the duty of the water purveyor to deliver potable water of proper quantity only as far as the... - 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.... - ANSWER- 15 service connections or over 25 persons for over 60 days a year What agent is responsible for reporting lab results to the regulatory agency? - ANSWER- Water system owner What causes water to moves through pores in the soil & rocks? - ANSWER- Gravity Disease producing bacteria are called? - ANSWER- Pathogens What are the two main causes of hardness in water? - ANSWER- Calcium & Magnesium What device measures the flow rate of gases? - ANSWER- Rotameter Excessive internal pressure, which may be several times the normal operating pressure and can seriously damage hydropneumatics tanks, valves, and piping network? - ANSWER- Water Hammer Most pumps must be primed before startup in order to... - ANSWER- Start the flow of water What is the purpose of a check valve? - ANSWER- Act as an automatic shutoff valve when the pump stops Which form of hypochlorite is the most dangerous to handle? - ANSWER- Calcium What type of fire extinguisher should be used for fires with live electricity present? - ANSWER- Class C Documents that provide a profile of hazardous material? - ANSWER- MSDS .....