Drinking Water Treatment Operator Class 1
Exam Questions with Correct Answers
If a customer complains about the drinking water characteristics, the operator should
record the complaint and...
Investigate immediately
What term is used when a water utility divides its total operating expenses into a total
revenue?
Operating ratio
How often should data, such as flow rate, amount of water treated, dosage of chemical,
and reservoir levels be recorded?
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...
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....
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?
Water system owner
What causes water to moves through pores in the soil & rocks?
Gravity
, Disease producing bacteria are called ?
Pathogens
What are the two main causes of hardness in water?
Calcium & Magnesium
What device measures the flow rate of gases?
Rotameter
Excessive internal pressure, which may be several times the normal operating pressure
and can seriously damage hydropneumatic tanks, valves, and piping network?
Water Hammer
Most pumps must be primed before startup in order to...
Start the flow of water
What is the purpose of a check valve?
Act as an automatic shutoff valve when the pump stops
Which form of hypochlorite is the most dangerous to handle?
Calcium
What type of fire extinguisher should be used for fires with live electricity present?
Class C
Documents that provide a profile of hazardous material?
MSDS
What is the purpose of a pump guard?
Exam Questions with Correct Answers
If a customer complains about the drinking water characteristics, the operator should
record the complaint and...
Investigate immediately
What term is used when a water utility divides its total operating expenses into a total
revenue?
Operating ratio
How often should data, such as flow rate, amount of water treated, dosage of chemical,
and reservoir levels be recorded?
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...
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....
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?
Water system owner
What causes water to moves through pores in the soil & rocks?
Gravity
, Disease producing bacteria are called ?
Pathogens
What are the two main causes of hardness in water?
Calcium & Magnesium
What device measures the flow rate of gases?
Rotameter
Excessive internal pressure, which may be several times the normal operating pressure
and can seriously damage hydropneumatic tanks, valves, and piping network?
Water Hammer
Most pumps must be primed before startup in order to...
Start the flow of water
What is the purpose of a check valve?
Act as an automatic shutoff valve when the pump stops
Which form of hypochlorite is the most dangerous to handle?
Calcium
What type of fire extinguisher should be used for fires with live electricity present?
Class C
Documents that provide a profile of hazardous material?
MSDS
What is the purpose of a pump guard?
