Pool Operators Course UPDATED Exam
Questions and CORRECT Answers
Acid - CORRECT ANSWER - A solution that contains more H+ ions than OH- ions and has a
PH of less than 7
Algae - CORRECT ANSWER - Chlorophyll-containing plants ranging from one-celled to
multi-celled
Algaecide - CORRECT ANSWER - an agent used to kill algae
Backwash - CORRECT ANSWER - The process of cleaning a filter where the water flow is
reversed and sent to waste
Bacteria - CORRECT ANSWER - Microscopic one-celled living organisms
bactericide - CORRECT ANSWER - substance that kills bacteria
Base - CORRECT ANSWER - A solution that contains more OH- ions than H+ ions and has a
PH greater than 7
Calcification - CORRECT ANSWER - To become hardened by calcium carbonate
Chloramines - CORRECT ANSWER - Chlorine combined with ammonia-containing
contaminants (also known as combined chlorine)
Coliforms - CORRECT ANSWER - Bacteria found in the intestinal tract of humans and
animals
, Corrode - CORRECT ANSWER - To eat away gradually by chemical action
Cyanuric acid - CORRECT ANSWER - chemical that stabilizes chlorine against ultraviolet
light of the sun
Diatomaceous Earth - CORRECT ANSWER - Fossil remains of tiny aquatic plants called
diatoms that are used as a type of filter media
Disinfection - CORRECT ANSWER - Destruction of pathogenic microorganisms and
reduction of non-pathogenic micro-organisms by thermal or chemical procedures
Effluent - CORRECT ANSWER - The water that flows out of a filter
Flocculent - CORRECT ANSWER - Alum or similar substances added to water that combine
with contaminants making them easier to filter out
FAC - CORRECT ANSWER - (or Free Available Chlorine) Chlorine disinfectant in pool
water that is available to react with new contaminants introducing to the water
Hardness - CORRECT ANSWER - Calcium, magnesium, and other dissolved minerals which
may cause scale build-up
HPC - CORRECT ANSWER - Heterotrophic Plate Count. A general bacteria count in a water
sample
Indicator - CORRECT ANSWER - A weak acid or base whose color depends on the PH of the
solution because it's acid and base forms has different colors
Influent - CORRECT ANSWER - The water that flows into the filter
Questions and CORRECT Answers
Acid - CORRECT ANSWER - A solution that contains more H+ ions than OH- ions and has a
PH of less than 7
Algae - CORRECT ANSWER - Chlorophyll-containing plants ranging from one-celled to
multi-celled
Algaecide - CORRECT ANSWER - an agent used to kill algae
Backwash - CORRECT ANSWER - The process of cleaning a filter where the water flow is
reversed and sent to waste
Bacteria - CORRECT ANSWER - Microscopic one-celled living organisms
bactericide - CORRECT ANSWER - substance that kills bacteria
Base - CORRECT ANSWER - A solution that contains more OH- ions than H+ ions and has a
PH greater than 7
Calcification - CORRECT ANSWER - To become hardened by calcium carbonate
Chloramines - CORRECT ANSWER - Chlorine combined with ammonia-containing
contaminants (also known as combined chlorine)
Coliforms - CORRECT ANSWER - Bacteria found in the intestinal tract of humans and
animals
, Corrode - CORRECT ANSWER - To eat away gradually by chemical action
Cyanuric acid - CORRECT ANSWER - chemical that stabilizes chlorine against ultraviolet
light of the sun
Diatomaceous Earth - CORRECT ANSWER - Fossil remains of tiny aquatic plants called
diatoms that are used as a type of filter media
Disinfection - CORRECT ANSWER - Destruction of pathogenic microorganisms and
reduction of non-pathogenic micro-organisms by thermal or chemical procedures
Effluent - CORRECT ANSWER - The water that flows out of a filter
Flocculent - CORRECT ANSWER - Alum or similar substances added to water that combine
with contaminants making them easier to filter out
FAC - CORRECT ANSWER - (or Free Available Chlorine) Chlorine disinfectant in pool
water that is available to react with new contaminants introducing to the water
Hardness - CORRECT ANSWER - Calcium, magnesium, and other dissolved minerals which
may cause scale build-up
HPC - CORRECT ANSWER - Heterotrophic Plate Count. A general bacteria count in a water
sample
Indicator - CORRECT ANSWER - A weak acid or base whose color depends on the PH of the
solution because it's acid and base forms has different colors
Influent - CORRECT ANSWER - The water that flows into the filter
