Direct and Indirect Cold Water systems- BSE-PPS02

What is the main difference between direct and indirect plumbing systems in UK households?

• The temperature of the water supplied

• The source of water supply for cold taps

• The type of pipes used in the system

• The pressure of water flow

Which of the following is a potential issue with direct cold-water systems during high demand periods?

• Increased water contamination.

• Pressure fluctuations.

• Water temperature variations.

• Excessive water storage.

Why is it now illegal to fit or alter lead pipes in the UK?

• Lead pipes are too expensive to produce.

• Lead is a hazardous metal.

• Lead pipes are prone to leaks.

• Lead pipes are difficult to install.

Which of the following is a disadvantage of direct cold-water systems?

• Mains cold water is available at all cold water taps and outlets.

• It requires less pipework than any other installation.

• The water pressure may drop at times of peak demand.

• Good pressure at ALL cold-water outlets.

Why might direct cold-water systems be considered noisy?

• Due to the low flow rates and pressures of the water supply.

• Because of the greater wear on taps and valves.

• Because they require more pipework than other systems.

• Due to the high flow rates and pressures of the water supply.

In the context of building services engineering, what is the purpose of a stop tap in a direct cold water supply system?

• To regulate the temperature of the water.

• To control the flow of water into the system.

• To filter impurities from the water.

• To increase the water pressure in the system.

In an indirect cold-water system, where does the main water supply typically enter the property?

• Through the kitchen sink

• Via the rising main

• Directly into the cold-water storage cistern

• Through the bathroom taps

Which appliance is directly fed by the main water supply in an indirect cold-water system?

• Bathroom taps

• Hot water cylinder

• Kitchen sink

• Cold-water storage cistern

Which of the following is a disadvantage of indirect cold-water systems?

• Reduced risk of water hammer

• The rising main must be protected against backflow

• Low pressure supply reduces leakage impact

• Shower valves can be supplied with equal pressures

How does indirect cold-water systems reduce the impact of leakage damage?

• By using high pressure supply

• By using low pressure supply

• By increasing demand on the cold-water main

• By reducing structural support