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Legionella Awareness Training Test
Please leave blank:
1. What is Legionnaires’ disease?
a) A viral disease
b) A pneumonia-like disease
c) A kidney disorder
2. Statistics show which of the following categories are most at risk from Legionnaires’ disease:
a) A female who is 35 years old and a non-smoker
b) Children
c) People aged over 45 years old who are also immuno-suppressed
3. What ratio of affected persons is correct?
a) 3:1 Male/Female
b) 5:1 Female/Male
c) 2:1 Male/Female
4. What temperature should hot water be stored at?
a) 40ºC
b) Over 50ºC
c) 60ºC or above
5. How do you contract Legionnaires’ disease?
a) By drinking infected water
b) From an infected person i.e. person to person
c) By breathing in an aerosol containing legionella bacteria
6. Which of the following temperature ranges will encourage legionella bacteria to grow?
a) 20-45ºC
b) 10-20ºC
c) 60-70ºC
7. What are dead-legs?
a) A necessary part of a good legionella control programme
b) A run of pipework containing stagnant water closed at one end with no water passing through
c) A run of pipework containing stagnant water which can be opened at one end allowing release of water\
8. Little used outlets should be regularly flushed but how often according to L8?
a) Weekly
b) Monthly
c) Annually
9. What can you do to check the efficiency of your control programme?
a) Hope no one contracts Legionnaires’ disease
b) Sample for legionella bacteria
c) Complete more temperature monitoring
10. Where are Legionella bacteria typically found?
a) In refrigerators
b) Cooling Towers and Domestic Water Systems
c) In steam boilers
11) Water stored in cold water tanks should be maintaned at what temperature?
a) Less that 20 degrees
b) Between 25 & 35 degrees
c) Above 50 degrees
12. Water storage tanks should be designed to turnover their water capacity at what rate?
a) Once every month
b) Once per annum
c) Once every 24 hours
13. What is the general rule for reducing the ability of legionella bacteria to grow in hot and cold water outlets?
a) Ensure outlets are properly labelled
b) Operate outlet regularly i.e. at least weekly
c) Run the outlet when you can
14. How often should you take hot water temperatures from the designated sentinel outlet according to The Approved Code of Practice (ACoP) L8?
a) Every month
b) Within two months
c) On a quarterly basis
15. Several factors can increase the risk of legionella bacteria proliferating (grow and multiply). Which of the following cannot cause legionella to proliferate?
a) Sediment in cold water tanks
b) Scale on taps and showerheads
c) Ultra Violet light
16. What is the optimum water temperature that Legionella bacteria grows in?
a) 20°C
b) 45°C to 50°C
c) 30°C - 35°C
17. When should you have your Legionella Risk Assessment reviewed according to L8?
a) Every 2 years
b) Annually
c) Changes within in the water system, usage of water, an outbreak of Legionnaires’ disease etc.
18. When should you sample for Legionella bacteria according to L8?
a) 6 monthly
b) Annually
c) As recommended by the risk assessment and/or when there is a reason to believe the water system is compromised due to non-compliant temperatures.
19. How many cases of Legionnaires’ disease are record each year approximately?
a) 100
b) 3000
c) 350
20. Tick Which of the following should be in your Legionella Management File, pick all that apply:
a) Legionella Risk Assessment
b) Responsible Persons Chart
c) Risk Management plan of action
d) Control and Monitoring records
e) Non-conformance action plan
f) Chlorination certificates
g) Training records
h) Water sample test results
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