CPO Operation and Maintenance Test 1

Question 1

The only physical factor that affects water balance is:

Accepted Answer

temperature

Answer

pH

Answer

TDS

Answer

calcium hardness

Question 2

To be classified as a disinfectant, a compound must kill or inactivate 99.9% of contaminants as well as:

Accepted Answer

leave a measurable residual in the water

Answer

maintaining proper water balance

Answer

have an NFPA classification of

Answer

have a sweet-smelling aroma

Question 3

Pools using chlorine gas as a disinfectant produce hydrochloric acid, which can be neutralized with:

Accepted Answer

caustic soda or soda ash

Answer

sodium thiosulfate

Answer

cyanuric acid

Answer

carbon dioxide

Question 4

A spa with water tested as pH 7.2, temperature 103, calcium hardness 600, total alkalinity 120, and TDS of 1,500 will be:

Accepted Answer

scale forming

Answer

balanced

Answer

corrosive

Answer

sanitized

Question 5

Vacuuming of the pool bottom should be done:

Accepted Answer

after the foreign matter has settled

Answer

as time permits

Answer

weekly

Answer

between noon and 2 p.m

Question 6

When performing a color-matching water test, when using the comparator, you should:

Accepted Answer

hold the sample up to the northern horizon or a daylight illuminator

Answer

hold the comparator up to direct sunlight

Answer

be in a dimly lighted room

Answer

wear sunglasses and hold the comparator up to the sunlight

Question 7

Which of the following would not be considered an acceptable ADA access method?

Accepted Answer

corner steps with a vertical rise of less than 11 inches

Answer

a pool ramp

Answer

zero-depth entry level

Answer

a portable lift

Question 8

A round pool with a 25' diameter contains square feet of surface area.

Accepted Answer

490.63

Answer

39.25

Answer

78.5

Answer

1.962 50

Question 9

A round pool with a 20' diameter and a water depth of 5'-4" contains gallons of water.

Accepted Answer

between 12,501 and 12,600

Answer

less than 12,400

Answer

between 12.400 and 12,500

Answer

more than 12,600

Question 10

A rectangular swimming pool measuring 30' long by 15' wide with a water depth of 3' on the shallow end and 6' on the deep end will contain gallons of water.

Accepted Answer

between 15.101 and 15,200

Answer

less than 15.000

Answer

between 15,000 and 15,100

Answer

more than 15.200