Certified Pool & Spa Operator
(CPO) Final Exam Questions and
Answers
When a pool is chlorinated with gas chlorine, the operator must also use:
Soda Ash
The term "chlorine demand" refers to:
The amount of chlorine which will react with substances in the pool
The percentage of hypoclorous acid formation is most influenced by:
pH
Pool painting is usually done:
Before opening in the spring
Re-circulation pumps used in swimming pools are the type called:
Centrifugal pumps
, P.
Certified Pool & Spa Operator (CPO)
Certification | 100% Correct
Reversing the flow of water through the filters is called:
Backwash
"Slurry feed" or "body feed" refers to:
Diatomite added during a filter run
The term pH is determined by the concentration of:
Hydrogen ions
Because carbonate ions combine with hydrogen ions, sodium carbonate will cause pH to:
Rise
When enough chlorine is added to cause complete oxidation of all organic compounds, a sudden
drop in residual chlorine may be noticed. The point at which this occurs is called the:
Break-point
"Residual chlorine" refers to:
The amount left in the water after oxidation of organic material
(CPO) Final Exam Questions and
Answers
When a pool is chlorinated with gas chlorine, the operator must also use:
Soda Ash
The term "chlorine demand" refers to:
The amount of chlorine which will react with substances in the pool
The percentage of hypoclorous acid formation is most influenced by:
pH
Pool painting is usually done:
Before opening in the spring
Re-circulation pumps used in swimming pools are the type called:
Centrifugal pumps
, P.
Certified Pool & Spa Operator (CPO)
Certification | 100% Correct
Reversing the flow of water through the filters is called:
Backwash
"Slurry feed" or "body feed" refers to:
Diatomite added during a filter run
The term pH is determined by the concentration of:
Hydrogen ions
Because carbonate ions combine with hydrogen ions, sodium carbonate will cause pH to:
Rise
When enough chlorine is added to cause complete oxidation of all organic compounds, a sudden
drop in residual chlorine may be noticed. The point at which this occurs is called the:
Break-point
"Residual chlorine" refers to:
The amount left in the water after oxidation of organic material
