GMJ 6189-33 unit 302

The minimum diameter of an incoming cold water service pipe to a dwelling is

• 15mm

• 12mm

• 22mm

• 28mm

To check the incoming cold water service to an older property provides sufficient supply to meet a new plumbing installation with additional kitchen and bathroom appliances, the plumber would use

• A manometer

• An air test kit

• A flow meter

• A pressure test kit

It has been identified that the water supply to a property cannot provide sufficient water flow for a new shower installation to work correctly. The correct course of action the plumber should take is to

• Advise their supervisor

• Tell the customer straight away

• Ignore the problem

• Advise the local water undertaker

Which one of the following is not approved for use in cold water systems installation?

• Push fit copper fittings

• Solder fittings with lead/tin solder

• Type A compression fittings

• Type B compression fittings

A cold water system where all cold water draw off points except the draw off point at the sink, are fed from a storage cistern is called

• A direct cold water system

• An indirect cold water system

• A combined cold water system

• A secondary cold water system

A cold water service pipe to a dwelling should be laid between

• 550mm and 1000mm below ground level

• 650mm and 1350mm below ground level

• 750mm and 1350mm below ground level

• 750mm and 2000mm below ground level

With reference to the siting of cold water storage cisterns, it is a requirement that

• Galvanised steel cisterns should have a continuous support over the whole base of the cistern

• Flexible cisterns should be supported on timber bearers laid across the ceiling joists

• Flexible cisterns should have continuous support over the whole base of the cistern

• Glass reinforced polyester cisterns should be supported on angle iron laid across the ceiling joists

The first valve after the mains connection on a cold water supply system to a domestic property is the

• Water suppliers stop valve

• Supply stop valve

• Servicing valve

• Drain valve

The correct tool for cutting holes in a plastic cold water storage cistern is a

• Keyhole saw

• Hole saw

• Pre-heated piece of copper pipe

• Sharpened piece of steel pipe

With reference to cold water storage cisterns, a common warning and overflow pipe should be used with cisterns of less than

• 1000 litres

• 1500 litres

• 2000 litres

• 2500 litres