Phase 1 Revision 1

Which of the following materials is not suitable for a domestic cold water system?

• R250 copper

• Polybutelene pressure pipe

• R220 copper

• Low carbon steel

Describe an alloy

• Very light metal

• Mixture of two or more metals

• Aluminium

• Metal specifically used for electrical fittings

What do the Water Regulations state about the use of lead in cold water systems?

• Lead must not be used on cold or hot water systems

• Lead can be installed if the customer is informed

• Lead can only be used on cold water systems but not hot water systems

• Lead must be installed with care

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

• 750mm

• 1250mm

• 1350mm

• 1750mm

What is the recommended temperature for setting the thermostat to an immersion heater in a hot water storage cylinder?

What heating system uses a difference in the density of water to circulate heat a hot water cylinder?

• Y plan

• Gravity fed

• S plan+

• Hypocaust

Which of the following documents relates to the installation of drainage systems?

• BS 6700

• BS EN 12056

• Building Regulations

• WRAS

What material is a sacrificial anode typically made of?

• Aluminium

• Copper

• Lead

• Magnesium

Which one of these fittings is a waste pipe fitting?

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WHat is the scientific name given for the rainwater cycle?

• Urban cycle

• Hydrological cycle

• Water table

• H₂O