Quiz____?
1. You operate a 120,000-gallon pool, and upon performing your hourly chemical
tests you observe the following readings: Total Available Chlorine reading is 1.6
free available chlorine reading is 1.5 pH is 7.4 Your supervising lifeguard has just
informed you that you have had a fecal incident occur; a solid stool has been
discharged into the pool. According to the Centers for Disease Control, as the
CPO, you should do the following: -
Answer✓✓
clear the pool and raise the free chlorine to 2 ppm
Quiz____?
2. Assuming that your local health department requires you to raise the free
chlorine to 5 ppm, how much sodium hypochlorite would be needed to raise the
free chlorine in the pool in question #1 to that level? -
Answer✓✓
3.5 gallons
Quiz____?
3. You are the CPO for an indoor health club pool. The facility manager informs
you that he is receiving complaints about a strong chlorine odor in the pool
area, and several members have complained of eye irritation. The most likely
cause of these complaints is: -
Answer✓✓
1
, high levels of chloramines in the pool
Quiz____?
4. To determine the level of chloramines in the water, you should do which of
the following? -
Answer✓✓
test for total chlorine and free chlorine, then subtract the free chlorine number
from the total chlorine
Quiz____?
5. You operate a 45,000 gallon indoor pool, and upon doing your hourly
chemical tests you observe the following readings:Total available chlorine is 2.2
Free available chlorine is 1.4 and pH is 7.6 What is the level of chloramines in
this pool? -
Answer✓✓
0.8
Quiz____?
7. You are the operator of a 330,000 gallon outdoor pool. Your local health
department requires you to perform a water balance calculation once monthly.
Upon performing the water tests necessary to perform this calculation, you
observe the following readings in your pool: Total alkalinity is 50 ppm pH is 7.2
Calcium Hardness is 150 ppm Temperature is 76 degrees F Total Dissolved
Solids is 500 ppm Using these readings, what is the Saturation Index for this
pool? -
Answer✓✓
-0.8
2
, Quiz____?
8. To adjust the tested Total Alkalinity in the pool in question #7 to an
acceptable level, which chemical would be most appropriate? -
Answer✓✓
Sodium Bicarbonate
Quiz____?
9. To adjust the tested pH in the pool in question #7 to an acceptable level,
which chemical would be most appropriate? -
Answer✓✓
Sodium Carbonate
Quiz____?
10. You are the CPO for a 28,000 gallon hotel pool. You perform a water
balance chemical test, and to your surprise, the Calcium Hardness is only 100
ppm. How much calcium chloride (77%) would be required to increase this to
400 ppm?" -
Answer✓✓
100.8 lbs.
Quiz____?
11. You are the CPO for a 100 foot long, 50 foot wide country club pool. The
average depth of this pool is 7 feet. You return to the pool on Monday morning,
after a rare weekend off, and find that the auto-fill feature has failed to work,
and the pool water level is four inches too low. How many gallons of water must
be added to return the water to the proper level? -
Answer✓✓
12,495 gallons
3
1. You operate a 120,000-gallon pool, and upon performing your hourly chemical
tests you observe the following readings: Total Available Chlorine reading is 1.6
free available chlorine reading is 1.5 pH is 7.4 Your supervising lifeguard has just
informed you that you have had a fecal incident occur; a solid stool has been
discharged into the pool. According to the Centers for Disease Control, as the
CPO, you should do the following: -
Answer✓✓
clear the pool and raise the free chlorine to 2 ppm
Quiz____?
2. Assuming that your local health department requires you to raise the free
chlorine to 5 ppm, how much sodium hypochlorite would be needed to raise the
free chlorine in the pool in question #1 to that level? -
Answer✓✓
3.5 gallons
Quiz____?
3. You are the CPO for an indoor health club pool. The facility manager informs
you that he is receiving complaints about a strong chlorine odor in the pool
area, and several members have complained of eye irritation. The most likely
cause of these complaints is: -
Answer✓✓
1
, high levels of chloramines in the pool
Quiz____?
4. To determine the level of chloramines in the water, you should do which of
the following? -
Answer✓✓
test for total chlorine and free chlorine, then subtract the free chlorine number
from the total chlorine
Quiz____?
5. You operate a 45,000 gallon indoor pool, and upon doing your hourly
chemical tests you observe the following readings:Total available chlorine is 2.2
Free available chlorine is 1.4 and pH is 7.6 What is the level of chloramines in
this pool? -
Answer✓✓
0.8
Quiz____?
7. You are the operator of a 330,000 gallon outdoor pool. Your local health
department requires you to perform a water balance calculation once monthly.
Upon performing the water tests necessary to perform this calculation, you
observe the following readings in your pool: Total alkalinity is 50 ppm pH is 7.2
Calcium Hardness is 150 ppm Temperature is 76 degrees F Total Dissolved
Solids is 500 ppm Using these readings, what is the Saturation Index for this
pool? -
Answer✓✓
-0.8
2
, Quiz____?
8. To adjust the tested Total Alkalinity in the pool in question #7 to an
acceptable level, which chemical would be most appropriate? -
Answer✓✓
Sodium Bicarbonate
Quiz____?
9. To adjust the tested pH in the pool in question #7 to an acceptable level,
which chemical would be most appropriate? -
Answer✓✓
Sodium Carbonate
Quiz____?
10. You are the CPO for a 28,000 gallon hotel pool. You perform a water
balance chemical test, and to your surprise, the Calcium Hardness is only 100
ppm. How much calcium chloride (77%) would be required to increase this to
400 ppm?" -
Answer✓✓
100.8 lbs.
Quiz____?
11. You are the CPO for a 100 foot long, 50 foot wide country club pool. The
average depth of this pool is 7 feet. You return to the pool on Monday morning,
after a rare weekend off, and find that the auto-fill feature has failed to work,
and the pool water level is four inches too low. How many gallons of water must
be added to return the water to the proper level? -
Answer✓✓
12,495 gallons
3
