9189PH2CWPPT2

What is the purpose of boosted cold water systems in multi-storey buildings?

• To decrease the water pressure for the entire building

• To supply water to the lowest part of the building

• To supply water to the highest part of the building

• To filter the water for the building

Which type of boosting system is more popular for supplying water in multi-storey buildings?

• Direct boosting systems from the cold water mains

• Indirect boosting systems from a break cistern

• Gravity-fed systems from an elevated tank

• Pump-assisted systems from the basement

Why are direct boosting systems often not allowed by water undertakers?

• They are too expensive to install

• They can often reduce the mains pressure for other consumers

• They require too much maintenance

• They are not effective in tall buildings

Under what condition may direct boosting systems be allowed?

• If the demand is above 0.2 litres/second

• If the demand is below 0.2 litres/second or 12 LPM

• If the building has fewer than 10 floors

• If the building has its own water treatment facility

What can boosting pumps in cold water systems cause?

• Decrease in water pressure

• Improvement in water taste

• Excessive aeration of the water

• Contamination of water

What is a common concern for consumers regarding water quality in boosted cold water systems?

• The color of the water

• The temperature of the water

• The opaque, milky appearance of the water

• The presence of bacteria in the water

Which of the following is NOT a common example of boosted cold water systems?

• Direct boosting systems

• Direct boosting to a drinking water heater and duplicate storage cisterns

• Indirect boosting to a storage cistern

• Direct boosting with a heating coil

What controls the pumps in a direct boosted cold water system?

• A timer set to specific intervals

• A thermostat based on water temperature

• A float switch device inside the high-level cistern

• Manual operation by a user

At what water level do the pumps in a direct boosted cold water system switch on?

• When the water level is at the top of the cistern

• When the water level drops to about half the cistern capacity

• When the water level reaches a depth of about 50mm below the shut-off level

• When the cistern is completely full

When do the pumps switch off in a direct boosted cold water system?

• When the water level reaches the top of the cistern

• When the water level drops to about half the cistern capacity

• When the water level is at the bottom of the cistern

• When the water level reaches a depth of about 50mm below the shut-off level of the float operated valve