cold water p3 ppt 2 p1

What temperature range does Legionella bacteria thrive in?

• 10°C to 20°C

• 20°C to 37°C

• 37°C to 50°C

• 50°C to 70°C

At what temperature does Legionella bacteria multiply rapidly?

• 20°C

• 25°C

• 37°C

• 50°C

What is the maximum temperature that cold water systems should be designed to prevent exceeding?

• 15°C

• 20°C

• 25°C

• 30°C

According to BS EN 806-2: 2005 Section 3, for how many years should all pipes and joints of a CW system be designed to last?

• 10 years

• 20 years

• 50 years

• 100 years

What is the maximum temperature that cold water outlets should not exceed when sentinel outlets are drawn off within two minutes at full flow?

• 15°C

• 20°C

• 25°C

• 30°C

What is a sentinel outlet in a cold water system?

• The outlet closest to the water heater

• The outlet with the highest pressure

• The outlet furthest from the source of supply

• The outlet with the largest diameter

What should be done with low-use outlets in a cold water system?

• They should be insulated

• They should be disconnected and dead ends removed

• They should be painted

• They should be left as they are

What is the recommended minimum capacity for a cistern supplying both hot and cold water in a small house?

• 100 litres

• 150 litres

• 230 litres

• 300 litres

For a large house, what is the recommended cistern capacity per bedroom?

• 50 litres

• 75 litres

• 100 litres

• 150 litres

What is the sufficient storage capacity for cisterns supplying only cold water to baths, washbasins, and WCs?

• 50-100 litres

• 100-150 litres

• 150-200 litres

• 200-250 litres