Lesson 08. Knowledge Test

Assessment Summary

0 of 10 Questions completed

Questions:

You have already completed the assessment before. Hence you can not start it again.

Assessment is loading…

You must sign in or sign up to start the assessment.

You must first complete the following:

Results

Assessment complete. Results are being recorded.

Results

0 of 10 Questions answered correctly

Your time:

You have reached 0 of 0 point(s), (0)

Average score
Your score

We’re sorry to tell you that you have not scored 70% on this knowledge test, which is a requirement to unlock the next knowledge test in the series. 🙁

You can check which questions you got wrong by clicking the ‘View Questions’ button below.
Well done! You have now unlocked the next knowledge test in the series! 🙂

Question 1 of 10

1. Question

When preparing chemical solutions, the water should always be added to the chemical to be diluted, not the other way round.

True
Correct Incorrect Correct answer

False
Correct Incorrect Correct answer

Correct

Incorrect
Question 2 of 10

2. Question

What chemical is used to DECREASE chlorine in swimming pools?

Sodium Thiosulphate
Correct Incorrect Correct answer

Sodium Bisulphate
Correct Incorrect Correct answer

Sodium Hypochlorite
Correct Incorrect Correct answer

Correct

Incorrect
Question 3 of 10

3. Question

How often should automatic monitoring and dosing systems be inspected for issues such as:

Build-up of residue around joints and injection points
Split chemical feed lines (or areas where a split would likely occur, such as twists and kinks etc.)
Build-up of sediment in chemical feed lines and chemical storage tanks
Missing or damaged sheathing of chemical feed lines

Weekly
Correct Incorrect Correct answer

Monthly
Correct Incorrect Correct answer

Every 6 months
Correct Incorrect Correct answer

Correct

Incorrect
Question 4 of 10

4. Question

Imagine you are the Pool Plant Operator of a swimming pool with a volume of 250 cubic metres. The automatic monitoring and dosing system has developed a fault and you are required to manually dose some disinfectant.

The current free chlorine reading is 0 PPM.
The disinfectant you are using is calcium hypochlorite at 65% chlorine strength.

How many grams of calcium hypochlorite would you need to dose in order to increase the free chlorine to 2 PPM?

Round up or down to the nearest round number, ie, don’t use any decimals in your answer.

Correct Incorrect Correct answer

Correct

Incorrect
Question 5 of 10

5. Question

In the Case Study ‘Essex swimming school fined for chemical burns to 3 year old girl’, how many improvement notices had the company failed to comply with?

Correct Incorrect Correct answer

Correct

Incorrect
Question 6 of 10

6. Question

Fill in the blanks below with either ALWAYS or NEVER.

Manual doing is a hazardous activity and should not be performed by people who have not received the appropriate training. A proper risk assessment should be conducted before any manual dosing procedure is performed. BLANK 1 of 6 wear the appropriate PPE. BLANK 2 of 6 add the chemical to the water, BLANK 3 of 6 add water to the chemical. BLANK 4 of 6 mix a chemical with another chemical. Only ever mix with water. BLANK 5 of 6 hand-dose chemicals into the swimming pool when occupied. BLANK 6 of 6 allow time for thorough mixing and distribution of the chemical into all areas of the swimming pool water.
Manual doing is a hazardous activity and should not be performed by people who have not received the appropriate training. A proper risk assessment should be conducted before any manual dosing procedure is performed.

Fill in the blank 1 of 6 wear the appropriate PPE.

Fill in the blank 2 of 6 add the chemical to the water, Fill in the blank 3 of 6 add water to the chemical.

Fill in the blank 4 of 6 mix a chemical with another chemical. Only ever mix with water.

Fill in the blank 5 of 6 hand-dose chemicals into the swimming pool when occupied.

Fill in the blank 6 of 6 allow time for thorough mixing and distribution of the chemical into all areas of the swimming pool water.

Correct

Incorrect
Question 7 of 10

7. Question

Which of these chemicals would be used as a disinfectant?

Polyaluminium Chloride
Correct Incorrect Correct answer

Sodium Hypochlorite
Correct Incorrect Correct answer

Sodium Bisulphate
Correct Incorrect Correct answer

Correct

Incorrect
Question 8 of 10

8. Question

It’s safe to mix chemicals as long as water is used to dilute the solution.

True
Correct Incorrect Correct answer

False
Correct Incorrect Correct answer

Correct

Incorrect
Question 9 of 10

9. Question

What is a Safety Data Sheet (SDS)?

A document that contains the information necessary to allow employers to do a risk assessment.
Correct Incorrect Correct answer

A risk assessment as required by the Control of Substances Hazardous to Health Regulations (COSHH).
Correct Incorrect Correct answer

Correct

Incorrect
Question 10 of 10

10. Question

Is Calcium Hypochlorite acidic or alkaline?

Acidic
Correct Incorrect Correct answer

Alkaline
Correct Incorrect Correct answer

Correct

Incorrect

Assessment Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question