CPO Operation and Maintenance Test 2

Question 1

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 to that level?

Accepted Answer

3.5 gallons

Answer

6 gallons

Answer

9 gallons

Answer

35 gallons

Question 2

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:

Accepted Answer

high levels of chloramines in the pool

Answer

too much free chlorine in the water

Answer

too few swimmers in the pool

Answer

high calcium levels in the water

Question 3

To adjust the tested Total Alkalinity in the pool to an acceptable level, which chemical would be most appropriate?

Accepted Answer

Sodium Bicarbonate

Answer

Sodium Hypochlorite

Answer

Sodium Carbonate

Answer

Sodium Chloride

Question 4

To adjust the tested pH in the pool to an acceptable level, which chemical would be most appropriate?

Accepted Answer

Sodium Carbonate

Answer

Sodium Chloride

Answer

Chlorine Gas

Answer

Sodium Thiosulfate

Question 5

You are the CPO for a large municipal swimming pool. This pool has a volume of 560,000 gallons of water and has an average daily bather load of 1300 people. The pool is operated using high-rate pressure sand filters. How often should you backwash the filters?

Accepted Answer

When the influent and effluent gauges are 10 to 20 psi apart

Answer

Once per week

Answer

Every 168 hours

Answer

Whenever the pool manager tells you to

Question 6

Safety and rescue equipment should always be:

Accepted Answer

kept easily accessible around the pool

Answer

kept safely stored inside a locked room

Answer

kept near the wading pool at all times

Answer

kept in the pool manager's office

Question 7

Which type of filter system will remove the smallest micron particles?

Accepted Answer

Diatomaceous earth

Answer

Rapid rate sand

Answer

Cartridge

Answer

High-rate sand

Question 8

If the pump fails to prime, which of the following does not have to be checked?

Accepted Answer

Filter system pressure is too high

Answer

Leak on the suction side of the pump

Answer

The hair and lint cover is loose or has a worn 0-ring

Answer

Clogged skimmer basket

Question 9

Oxidation Reduction Potential testing (ORP) is measured in?

Accepted Answer

mV

Answer

PPM

Answer

GPM

Answer

FAC

Question 10

Opening and closing checklists:

Accepted Answer

Answer

help note unsafe conditions at a facility

Answer

should include a check of the main drain cover

Answer

will ensure proper deck clearance is maintained around the pool edge

Answer

All of the above