POOL OP TEST REVIEW QUESTIONS
WITH COMPLETE SOLUTIONS
To be a pool operator you must - answer-complete a pool operator training course.
The strongest suction in the pool (entrapment) is the - answer-main drain.
Electrical systems in the pool must have - answer-gfis.
The skimmer_____ prevents floating debris from re-entering the pool. - answer-weir
Filtration is the - answer-physical process of water moving through the system.
In most jurisdictions the turnover rate is - answer-6 hours.
The_____ is the time it takes all the water to go through the filter system. - answer-
turnover rate
Algae forms because of - answer-poor circulation.
To remove stains from the pool bottom and walls you need - answer-to drain and acid
wash the pool.
Adding chlorine to the pool - answer-raises ph.
The formula for area = lenght x width - answer-lenght x width
The surface area of a pool 50 feet wide and 100 feet long is - answer-5000 square feet.
Pool volume = length x width x depth x 7.48 - answer-length x width x depth x 7.48
The volume of water in a rectangular pool that is 12 feet wide, 34 feet long and has a
constant depth of 3 feet is 9155 gallons. - answer-9155 gallons.
Circular pool area = r x 3.14 - answer-r x 3.14
For a 15000 gallon pool with an 8 hour turnover rate the - answer-flow rate is 31.25
Cdc states that the number of accidents related to swimming are - answer-140000/year.
The minimum number of ladders in a pool are - answer-2.
Stairs in a pool must have - answer-handrails
, When a pool has a deep end more than 5 feet, it must have a - answer-safety line and a
slope line mark.
Pool should have both horizontal and vertical depth markers no more than - answer-25
feet apart.
The algae that cause the most damage to a pool is - answer-black algae.
Low chlorine levels will cause _____ in the pool. - answer-green algae
The person responsible for keeping records at the pool is the pool operator. - answer-
pool operator.
If the pool is cloudy and you cannot see the main drain_____ to swimmers. - answer-
close the pool
Ph should be between - answer-7.2 and 7.8
To raise ph you should add - answer-soda ash.
To lower ph you should add - answer-muriatic acid
Chlorine levels should be between - answer-1.0 and 5.0
Liquid chlorine is named - answer-sodium hypochlorite.
Powder chlorine is named - answer-calcium hypochlorite
Chlorine comes in the form of - answer-liquid, gas and powder.
Chlorine is added to the pool to oxidize organic matter. - answer-oxidize organic matter.
When you add chlorine to the water it forms - answer-hydrochlorous acid.
Total alkalinity of a pool should be between 80 and 140 ppm. - answer-80 and 140 ppm.
Low alkalinity results in - answer-loss of ph control (ph bounce)
To raise total alkalinity you should add sodium bicarbonate. - answer-sodium
bicarbonate.
Calcium hardness of a pool should be between - answer-200 and 400.
Low calcium hardness causes - answer-scaling
Cyanuric acid can not exceed - answer-100 ppm
WITH COMPLETE SOLUTIONS
To be a pool operator you must - answer-complete a pool operator training course.
The strongest suction in the pool (entrapment) is the - answer-main drain.
Electrical systems in the pool must have - answer-gfis.
The skimmer_____ prevents floating debris from re-entering the pool. - answer-weir
Filtration is the - answer-physical process of water moving through the system.
In most jurisdictions the turnover rate is - answer-6 hours.
The_____ is the time it takes all the water to go through the filter system. - answer-
turnover rate
Algae forms because of - answer-poor circulation.
To remove stains from the pool bottom and walls you need - answer-to drain and acid
wash the pool.
Adding chlorine to the pool - answer-raises ph.
The formula for area = lenght x width - answer-lenght x width
The surface area of a pool 50 feet wide and 100 feet long is - answer-5000 square feet.
Pool volume = length x width x depth x 7.48 - answer-length x width x depth x 7.48
The volume of water in a rectangular pool that is 12 feet wide, 34 feet long and has a
constant depth of 3 feet is 9155 gallons. - answer-9155 gallons.
Circular pool area = r x 3.14 - answer-r x 3.14
For a 15000 gallon pool with an 8 hour turnover rate the - answer-flow rate is 31.25
Cdc states that the number of accidents related to swimming are - answer-140000/year.
The minimum number of ladders in a pool are - answer-2.
Stairs in a pool must have - answer-handrails
, When a pool has a deep end more than 5 feet, it must have a - answer-safety line and a
slope line mark.
Pool should have both horizontal and vertical depth markers no more than - answer-25
feet apart.
The algae that cause the most damage to a pool is - answer-black algae.
Low chlorine levels will cause _____ in the pool. - answer-green algae
The person responsible for keeping records at the pool is the pool operator. - answer-
pool operator.
If the pool is cloudy and you cannot see the main drain_____ to swimmers. - answer-
close the pool
Ph should be between - answer-7.2 and 7.8
To raise ph you should add - answer-soda ash.
To lower ph you should add - answer-muriatic acid
Chlorine levels should be between - answer-1.0 and 5.0
Liquid chlorine is named - answer-sodium hypochlorite.
Powder chlorine is named - answer-calcium hypochlorite
Chlorine comes in the form of - answer-liquid, gas and powder.
Chlorine is added to the pool to oxidize organic matter. - answer-oxidize organic matter.
When you add chlorine to the water it forms - answer-hydrochlorous acid.
Total alkalinity of a pool should be between 80 and 140 ppm. - answer-80 and 140 ppm.
Low alkalinity results in - answer-loss of ph control (ph bounce)
To raise total alkalinity you should add sodium bicarbonate. - answer-sodium
bicarbonate.
Calcium hardness of a pool should be between - answer-200 and 400.
Low calcium hardness causes - answer-scaling
Cyanuric acid can not exceed - answer-100 ppm
