Water Treatment Operator Level 1 real Questions and answers 2024/2025 latest/updated exam

The Difference between the static ground water level and the pumping level is the - CORRECT ANSWER-drawdown A customer complaint about the presence of brown floc in tap water can best be handled by - CORRECT ANSWER-investigating the problem as soon as possible The term "aquifer" relates to wh...

Plastic - CORRECT ANSWER-Most resistant to corrosion Chlorine gas - CORRECT ANSWER-heavier than air, extremely toxic, very corrosive to damp atmospheres Centrifugal pump - CORRECT ANSWER-Most common pump, used for high flow, and low pressure applications booster pumps Positive displacement pu...

What is the general definition of an ion? An _________ with a positive or negative charge - CORRECT ANSWER-Atom A continuous positive pressure in a distribution system is essential for preventing what event? - CORRECT ANSWER-Backflow Event _____________ water pressure must be maintained to ens...

Which agency sets legal limits on the concentration levels of harmful contaminants in potable water distributed to customers? - CORRECT ANSWER-US Environmental Protection Agency The number of monthly distributions system bacteriologiacal samples required is - CORRECT ANSWER-Based on the popula...

What the primary objective of water distribution operators - CORRECT ANSWERdeliver safe and pleasant drinking water to the consumers what should the distribution operator do if there is a complaint about the water? - CORRECT ANSWER-record the info and have the problem investigated and notify the ...

Chlorination is the most common means of disinfection used today to protect the public's health - CORRECT ANSWER-True As water mains and reservoirs become older, they require less and less maintenance. - CORRECT ANSWER-False Routine water quality monitoring of distribution systems consists of ...

What is the definition of "operator"? - CORRECT ANSWER-Operator has the same meaning as certified operator. Within how many days must a certified operator notify the Department (in writing) that the operator either ceases or commences operation of another facility? - CORRECT ANSWER-10 days ...

Which process converts ammonia to nitrite and nitrate? - CORRECT ANSWERNitrification What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - CORRECT ANSWER-40 pounds per day What is a type of positive displacement water meter? - CORRECT ANSWER-Nutatingdisk mete...

Distribution systems are usually laid out in which of the following patterns besides Tree shaped and Grid designs? a. Loops and/or circular designs b. Vertical designs without backflow prevention devices c. Horizontal lines that flow into open ponds then back into a closed pipe d. Horizontal l...

A continuously flowing watercourse - CORRECT ANSWER-Perennial Stream Algae causes PH to ....... at night - CORRECT ANSWER-Decrease What contributes to creation of algae blooms - CORRECT ANSWER-Increased nutrients Iron is found mostly in what sources of water - CORRECT ANSWER-Groundwater Also c...

A continuously flowing watercourse - CORRECT ANSWER-Perennial Stream Algae causes PH to ....... at night - CORRECT ANSWER-Decrease What contributes to creation of algae blooms - CORRECT ANSWER-Increased nutrients Iron is found mostly in what sources of water - CORRECT ANSWER-Groundwater Also c...

What are the two important factors impacting the effectiveness of chlorination? - CORRECT ANSWER-Concentration of chlorine and contact time The treatment process that controls corrosion or scaling is known as what? - CORRECT ANSWER-Stabilization Permanganate reactions are highly dependent on wh...

What are the two important factors impacting the effectiveness of chlorination? - CORRECT ANSWER-Concentration of chlorine and contact time The treatment process that controls corrosion or scaling is known as what? - CORRECT ANSWER-Stabilization Permanganate reactions are highly dependent on wh...