6 questions Intermediate

ECADEMY test

2 - Water Disinfection

This course test contains 6 questions and can be retaken at any time.

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Question 1 of 6 Intermediate

In a drinking system, what temperature should the water in the taps be?

Question 4 of 6 Intermediate

Which living organisms in water can Chlorine dioxide kill, besides Legionella pneumophila?

Question 5 of 6 Intermediate

Which method is the most efficient for water disinfection?

Question 6 of 6 Intermediate

In which applications are the following four areas important to focus on to avoid legionella bacteria: 1) Water temperature, 2) Tank and pipe sizing, 3)Tank and pipe material, 4)Tank and pipe insulation

Question 6 of 6 Intermediate

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Correct
Q: In a drinking system, what temperature should the water in the taps be?
A: At least 55°C / 131°F
Correct
Q: Where does the bacteria Legionella pneumophila live and breed?
A: In stagnant warm water
Correct
Q: What is legionnaire’s disease caused by?
A: Inhalation of the bacteria Legionella pneumophila
Correct
Q: Which living organisms in water can Chlorine dioxide kill, besides Legionella pneumophila?
A: Fungi, viruses and algae
Correct
Q: Which method is the most efficient for water disinfection?
A: Chlorine dioxide
Correct
Q: In which applications are the following four areas important to focus on to avoid legionella bacteria: 1) Water temperature, 2) Tank and pipe sizing, 3)Tank and pipe material, 4)Tank and pipe insulation
A: Drinking water systems