305 Cold water systems 3 Quiz

What is the maximum depth at which a water main service pipe should be laid at?

• 750mm

• 1,250mm

• 1,350mm

• 1,750mm

Fluid category 1 represents:

• a serious health risk

• a significant health risk

• a slight health risk

• no health risk

Which one of the following water pipes connects the local main to the water undertaker's stop valve?

• The distribution pipe

• The communication pipe

• The feed pipe

• The service pipe

The plastic medium density supply pipe, which is coloured blue, is manufactured from which one of the following materials?

• Polyethylene

• Polystyrene

• Polypropylene

• Polybutylene

Which one of the following is the minimum depth at which a water main service should be laid?

• 1,350mm

• 1,150mm

• 950mm

• 750mm

Which one of the following can affect the pressure and flow rates to the incoming main to a property?

• Peak demand periods

• The size of the CWSC in the loft

• The square metre floor area of the property

• How close the water meter is to the property

Water which is from underground sources and has passed through sandstone will generally be classed as which type of water?

• Very soft water

• Soft water

• Temporary hard water

• Permanently hard water

Fluid category 3 represents:

• A serious health risk

• A significant health risk

• A slight health risk

• No health risk

Which of the options listed does the passage below describe? 'Man-made wells drilled directly to a below ground water source.'

• Artesian well

• Borehole

• Natural spring

• Deep well

Water from a hot water outlet is classified as which water category?

• 1

• 2

• 3

• 4