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Question 1 of 6
Intermediate
In a drinking system, what temperature should the water in the taps be?
Question 2 of 6
Intermediate
Which method is the most efficient for water disinfection?
Question 3 of 6
Intermediate
Where is Chlorine dioxide injected into the water system?
Question 4 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 5 of 6
Intermediate
Which living organisms in water can Chlorine dioxide kill, besides Legionella pneumophila?
Question 6 of 6
Intermediate
Where does the bacteria Legionella pneumophila live and breed?
Question 6 of 6
Intermediate
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1: In a drinking system, what temperature should the water in the taps be?
60°C / 140°F.
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1: In a drinking system, what temperature should the water in the taps be?
At least 55°C / 131°F
1: In a drinking system, what temperature should the water in the taps be?
At least 50°C / 122°F
You can find the answer here >
2: Which method is the most efficient for water disinfection?
2: Which method is the most efficient for water disinfection?
Thermal treatment
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2: Which method is the most efficient for water disinfection?
Chlorine dioxide
3: Where is Chlorine dioxide injected into the water system?
In every container with stagnant warm water
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3: Where is Chlorine dioxide injected into the water system?
Where the municipal water main enters the building
3: Where is Chlorine dioxide injected into the water system?
In the water system’s main pump
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4: 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
Water fountains
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4: 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
Rooftop cooling towers
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4: 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
Drinking water systems
5: Which living organisms in water can Chlorine dioxide kill, besides Legionella pneumophila?
Fungi, viruses and algae
5: Which living organisms in water can Chlorine dioxide kill, besides Legionella pneumophila?
5: Which living organisms in water can Chlorine dioxide kill, besides Legionella pneumophila?
Fungi and algae
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6: Where does the bacteria Legionella pneumophila live and breed?
In stagnant warm water
6: Where does the bacteria Legionella pneumophila live and breed?
In warm water without ventilation
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6: Where does the bacteria Legionella pneumophila live and breed?
In floating water which is constantly being infected with dirt
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