Certified Pool Operator Handbook
Practice Test
"thirteen. You are the CPO for a big municipal swimming pool. This pool has a extent of
560,000 gallons of water,and has an average day by day bather load of 1300 people. The
pool is operated the usage of high price strain sand filters. How frequently ought to you
backwash the filters?" - ANS-When the influent and effluent gauges are 10 to 20 psi apart
"33. You are the aquatics manager at a totally busy nearby fitness center that is open 24
hours according to day, 7 days per week. This fitness center has a 1,850 gallon spa. This
spa is in almost regular use with about one hundred bathers according to day the usage of
the spa (on - ANS-
1. You function a a hundred and twenty,000-gallon pool, and upon acting your hourly
chemical tests you examine the following readings: Total Available Chlorine analyzing is 1.6
free to be had chlorine studying is 1.5 pH is 7.4 Your supervising lifeguard has just
knowledgeable you which you have had a fecal incident occur; a stable stool has been
discharged into the pool. According to the Centers for Disease Control, as the CPO, you
must do the subsequent: - ANS-clean the pool and lift the unfastened chlorine to two ppm
10. You are the CPO for a 28,000 gallon inn pool. You carry out a water stability chemical
take a look at, and to your wonder, the Calcium Hardness is handiest one hundred ppm.
How much calcium chloride (77%) would be required to growth this to 400 ppm?" - ANS-one
hundred.8 lbs.
One hundred. The go with the flow requirement of a speedy rate sand clear out during
backwashing is gpm according to sq. Feet. - ANS-12-15
one hundred and one. The backwash ratio for high charge sand filters is ____ - ANS-1:1
102. Is the maximum float charge in step with sq. Feet. For each pressure and vacuum type
DE filters in public pools with out slurry. - ANS-2 gpm
103. The generally commonplace amount of precoat for DE filters is ____ pounds in keeping
with each sq. Ft. Of floor vicinity. - ANS-zero.A hundred twenty five
104. To spoil dangerous organisms in pool water, the usual minimum of loose chlorine is
____ ppm and lots of health codes set the maximum FC at ppm. - ANS-1, five
one hundred and five. With an incident of diarrheal discharge in a pool, the free to be had
chlorine have to be raised to _____ ppm. - ANS-20
106. Chlorine added after the breakpoint is reached will exist as . - ANS-free chlorine
107. Sodium hypochlorite in its commercial shape incorporates percentage available
chlorine. - ANS-10-12
, 108. Calcium hypochlorite contains percentage available chlorine with the aid of weight. -
ANS-sixty five
109. Bromine is comparable in lots of respects to chlorine, however, bromine can not be
used for . - ANS-stabilization
eleven. You are the CPO for a one hundred foot long, 50 foot wide u . S . Membership pool.
The common intensity of this pool is 7 feet. You return to the pool on Monday morning, after
an extraordinary weekend off, and find that the car-fill feature has did not work, and the pool
water stage is 4 inches too low. How many gallons of water have to be added to go back the
water to the proper degree? - ANS-12,495 gallons
a hundred and ten. The strong chlorine compound that's used while a sluggish launch of
chlorine through the years is favored is referred to as: - ANS-trichlor
111. Proper pH manipulate of provides better chlorine performance. - ANS-7.2-7.Four
113. It is crucial to preserve overall alkalinity at ppm in plaster swimming pools. -
ANS-eighty-120
114. To manage scaling, pool water that exceeds ppm hardness have to be diluted or
replaced with water of considerably decrease hardness. - ANS-800-a thousand
a hundred and fifteen. In determining price for heating, it's far first-class to length the heater
to the quantity of gallons of water within the spa and inside the spa and to the preferred
temperature. BTUs will heat 1 gallon of water 1 diploma F. - ANS-8.33
116. A _________ is used to radiate the high temperature of the water and cool it sufficient
to permit the the rest of the circulate piping to the PVC. - ANS-Heat sink
12. You are the operator of a 3,000 gallon gymnasium spa, which has an average of a
hundred users in step with day. According to the CPO Handbook, how often must the water
in this spa be changed? - ANS-10 days
14. In checking out for Chlorine/Bromine in a industrial pool, DPD is preferred over OTO
because: - ANS-OTO most effective exams for Total Chlorine
15. Safety and rescue gadget must always be: - ANS-Kept effortlessly handy across the pool
sixteen. Which kind of filter machine will remove the smallest micron particles? -
ANS-diatomaceous earth
17. If the pump fails to top, which of the subsequent does now not should be checked? -
ANS-clear out system pressure is simply too excessive
18. Oxidation Reduction Potential testing (ORP) is measured in? - ANS-mV
Practice Test
"thirteen. You are the CPO for a big municipal swimming pool. This pool has a extent of
560,000 gallons of water,and has an average day by day bather load of 1300 people. The
pool is operated the usage of high price strain sand filters. How frequently ought to you
backwash the filters?" - ANS-When the influent and effluent gauges are 10 to 20 psi apart
"33. You are the aquatics manager at a totally busy nearby fitness center that is open 24
hours according to day, 7 days per week. This fitness center has a 1,850 gallon spa. This
spa is in almost regular use with about one hundred bathers according to day the usage of
the spa (on - ANS-
1. You function a a hundred and twenty,000-gallon pool, and upon acting your hourly
chemical tests you examine the following readings: Total Available Chlorine analyzing is 1.6
free to be had chlorine studying is 1.5 pH is 7.4 Your supervising lifeguard has just
knowledgeable you which you have had a fecal incident occur; a stable stool has been
discharged into the pool. According to the Centers for Disease Control, as the CPO, you
must do the subsequent: - ANS-clean the pool and lift the unfastened chlorine to two ppm
10. You are the CPO for a 28,000 gallon inn pool. You carry out a water stability chemical
take a look at, and to your wonder, the Calcium Hardness is handiest one hundred ppm.
How much calcium chloride (77%) would be required to growth this to 400 ppm?" - ANS-one
hundred.8 lbs.
One hundred. The go with the flow requirement of a speedy rate sand clear out during
backwashing is gpm according to sq. Feet. - ANS-12-15
one hundred and one. The backwash ratio for high charge sand filters is ____ - ANS-1:1
102. Is the maximum float charge in step with sq. Feet. For each pressure and vacuum type
DE filters in public pools with out slurry. - ANS-2 gpm
103. The generally commonplace amount of precoat for DE filters is ____ pounds in keeping
with each sq. Ft. Of floor vicinity. - ANS-zero.A hundred twenty five
104. To spoil dangerous organisms in pool water, the usual minimum of loose chlorine is
____ ppm and lots of health codes set the maximum FC at ppm. - ANS-1, five
one hundred and five. With an incident of diarrheal discharge in a pool, the free to be had
chlorine have to be raised to _____ ppm. - ANS-20
106. Chlorine added after the breakpoint is reached will exist as . - ANS-free chlorine
107. Sodium hypochlorite in its commercial shape incorporates percentage available
chlorine. - ANS-10-12
, 108. Calcium hypochlorite contains percentage available chlorine with the aid of weight. -
ANS-sixty five
109. Bromine is comparable in lots of respects to chlorine, however, bromine can not be
used for . - ANS-stabilization
eleven. You are the CPO for a one hundred foot long, 50 foot wide u . S . Membership pool.
The common intensity of this pool is 7 feet. You return to the pool on Monday morning, after
an extraordinary weekend off, and find that the car-fill feature has did not work, and the pool
water stage is 4 inches too low. How many gallons of water have to be added to go back the
water to the proper degree? - ANS-12,495 gallons
a hundred and ten. The strong chlorine compound that's used while a sluggish launch of
chlorine through the years is favored is referred to as: - ANS-trichlor
111. Proper pH manipulate of provides better chlorine performance. - ANS-7.2-7.Four
113. It is crucial to preserve overall alkalinity at ppm in plaster swimming pools. -
ANS-eighty-120
114. To manage scaling, pool water that exceeds ppm hardness have to be diluted or
replaced with water of considerably decrease hardness. - ANS-800-a thousand
a hundred and fifteen. In determining price for heating, it's far first-class to length the heater
to the quantity of gallons of water within the spa and inside the spa and to the preferred
temperature. BTUs will heat 1 gallon of water 1 diploma F. - ANS-8.33
116. A _________ is used to radiate the high temperature of the water and cool it sufficient
to permit the the rest of the circulate piping to the PVC. - ANS-Heat sink
12. You are the operator of a 3,000 gallon gymnasium spa, which has an average of a
hundred users in step with day. According to the CPO Handbook, how often must the water
in this spa be changed? - ANS-10 days
14. In checking out for Chlorine/Bromine in a industrial pool, DPD is preferred over OTO
because: - ANS-OTO most effective exams for Total Chlorine
15. Safety and rescue gadget must always be: - ANS-Kept effortlessly handy across the pool
sixteen. Which kind of filter machine will remove the smallest micron particles? -
ANS-diatomaceous earth
17. If the pump fails to top, which of the subsequent does now not should be checked? -
ANS-clear out system pressure is simply too excessive
18. Oxidation Reduction Potential testing (ORP) is measured in? - ANS-mV
