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Water Operator – Questions With Correct Solutions
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Water Operator – Questions With Correct Solutions
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Water Operator – Questions With Correct SolutionsWhat is the definition of a Community Water Supply? Right Ans - A Public
water supply system, which has at least 1 service connections or serves 25 or
more pesons on a regular basis.
When was the Safe Drinking Act (SDWA) passed by congress? Right Ans -
1974
What is the average water usage per person per day? Right Ans - 100 to
130 gallons
A Water Distribution system is the network of pipes that transports: Right
Ans - Potable water from the treatment plant and/or Ground water wells to
the customer.
What is the Definition of "effluent?" Right Ans - Water or other liquid
flowing out of a reservoir, basin, treatment process or treatment plant.
The term "Public Health Professional" is used to describe: Right Ans - An
operator
Turbidity is measured in what units? Right Ans - NTUs
Turbidity which can be filtered out of water is: Right Ans - Suspended
Matter
The pH scale goes from: Right Ans - 0.0 to 14.0
Hardness in water is caused by: Right Ans - Calcium and magnesium
Which one of these is temporary hardness Right Ans - Calcium bicarbonate
Ca(HCO3)
Most common method of determing hardness and alkalinity is: Right Ans -
Titration
Which one of these is both alkalinity and hardness? Right Ans - Calcium
bicarbonate Ca(HCO3)2
, Alkalinity is called: Right Ans - A Buffer
The endpoint for "P" alkalinity is: Right Ans - 8.3
The endpoint for "T" or "M" alkalinity is: Right Ans - 4.5
Total alkalinity does not exist below the pH of: Right Ans - 4.5
Bacteria which cause disease are called: Right Ans - Pathogenic
Coliform are: Right Ans - Indicators
True color consists of: Right Ans - Dissolved matter
A person who performs work on, or determines the method of working on a
water systems or plants is: Right Ans - An operator
A person who is in direct responsible charge of an entire plant, or distribution
system is: Right Ans - A superintendent
A surface water system treating water for 850 people is required to have a
superintendent with at least a class: Right Ans - "C" certificate
If an operator is hired and a "Temporary" certificate is applied for within 10
days of employment, this operator can: Right Ans - Do any operator duty
without direct supervision.
What is the minimum laboratory certification required for a lab operator
doing the required daily routine testing (no bact)? Right Ans - Class C Lab
Who is required to obtain and hold a Lab certification? Right Ans - The
person responsible for the accuracy and reporting of lab testing.
A day-by-day record of the total plant, or ground water operation is: Right
Ans - A monthly Operational Report (MOR)
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