6 questions Intermediate

ECADEMY test

2 - Water Disinfection

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

You must answer all questions correctly to pass the test and complete the course.

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Question 1 of 6 Intermediate

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

Question 3 of 6 Intermediate

What is the name of the disease, which was first discovered in 1976?

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 6 of 6 Intermediate

Which method is the most efficient for water disinfection?

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 is Chlorine dioxide injected into the water system?
A: Where the municipal water main enters the building
Correct
Q: What is the name of the disease, which was first discovered in 1976?
A: Legionnaire’s disease
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
Correct
Q: Where does the bacteria Legionella pneumophila live and breed?
A: In stagnant warm water
Correct
Q: Which method is the most efficient for water disinfection?
A: Chlorine dioxide