Full Course

Question 1

How many litres of water is contained in the pool? (Pg 10-17)

Answer 1

300,000L

Question 2

If a pool has 300,000L of water in it, and the turnover rate is 5, what is the minimum flow rate necessary to meet the desired turnover rate? (Pg 10-17)

Answer 2

17.36 L/s

Question 3

If a pool has 300,000L of water in it, and all of the water moves through the system in 5 hours, what is the turnover? (Pg 10-17)

Answer 3

5 hrs

Question 4

If a pool has 300,000L of water in it, and all of the water moves through the circulation system in 5 hours, what is the turnover rate? (Pg 10-17)

Answer 4

4.8 hours — 24hrs divided by 5

Question 5

A bottom drain is an example of an inlet?
True or False (Pg 20-36)

Answer 5

False

Question 6

Pool circulation pumps use positive displacement to move water? True or False (Pg 20-36)

Answer 6

False

Question 7

Pressure gauges are normally found on the influent and effluent lines of the pump? True or False (Pg 20-36)

Answer 7

False

Question 8

Hair and lint strainers are not required on pressure filtration systems? True or False (Pg 20-36)

Answer 8

False

Question 9

Turnover rate and flow rate are used in determining pool volume? True or False (Pg 20-36)

Answer 9

False

Question 10

Circulation systems should be shut down at night when the pool is not in use? True or False (Pg 20-36)

Answer 10

False

Question 11

A flow meter should be installed on or as close to an elbow in the piping as possible? True or False (Pg 20-36)

Answer 11

False

Question 12

What are the two types of diatomite filter systems? (Pg 20-36)

Answer 12

Pressure and vacuum

Question 13

pH is measured on a scale of _____? (Pg 38-45)

Answer 13

0-14

Question 14

What is neutral pH? (Pg 38-45)

Answer 14

7

Question 15

What is the ideal pH for a swimming pool? (Pg 38-45)

Answer 15

7.4

Question 16

If the pH of your pool was 7.2, what would you add? (Pg 38-45)

Answer 16

Soda ash (caustic soda)

Question 17

The chemical commonly used for testing pH of swimming pools is _______.
(Pg 38-45)

Answer 17

Phenol red

Question 18

When diluting chemicals, you shoukd add acid before the water. True or false
(Pg 38-45)

Answer 18

False

Question 19

The ideal range of pH is ______
(Pg 38-45)

Answer 19

7.2 to 7.8

Question 20

When chlorine is added to water, what is formed?
A) HOCL and HCL
B) hypochlorous acid
C) hydrochloric acid
D) all of the above
(Pg 48-55)

Answer 20

All of the above

Question 21

Which of the following is an effective bactericide?
A) hydrochloric acid
B) hypochlorous acid
C) chloramines
D) total available chlorine
(Pg 48-55)

Answer 21

Hypochlorous acid

Question 22

What is formed when hypochlorous acid reacts with nitrogen?
A) chlorophyll
B) HOCL
C) chlorinator
D) chloramine
(Pg 48-55)

Answer 22

Chloramine

Question 23

What is chlorine gas stored in?
(Pg 48-55)

Answer 23

Cylinders

Question 24

Calcium hypochlorite comes in what form?
A) gas
B) liquid
C) solid
(Pg 48-55)

Answer 24

Solid

Question 25

What does Chlorine demand refers to? (Pg 48-55)

Answer 25

The amount of chlorine that must be added to a pool at any given. Omens to react with all substances in the water

Question 26

Chlorine gas causes the pH to____ A) increase B) decrease (Pg 48-55)

Answer 26

Decrease

Question 27

Sodium hypochlorite (bleach) causes the pH of water to ____ A) increase B) decrease (Pg 48-55)

Answer 27

Increase

Question 28

Chlorine, bromine, and iodine are classed as ______ A) halogens b) noble gases C) alkalides D) metaloids (Pg 48-55)

Answer 28

Halogens

Question 29

The pH of a hot tub should be between __ and __

Answer 29

7.2 and 7.4

Question 30

Which of the following aerators is NOT typically used in hot tubs? Forced air, suction air, two-speed, floating surface.

Answer 30

Floating surface