Plumbing level 2 - PP1- Hot water

What does WRAS stand for?

• Water Regulation and Standards Scheme

• Water Regulation and Safety Scheme

• Water Regulation Association Scheme

• Water Regulation Advisory Scheme

Which British Standard covers the design, installation, testing, and maintenance of water systems?

• BS8000 pt15

• BS6700

• BS9999

• BS1234

What is the minimum size of the vent pipe according to BS6700?

• 32mm

• 28mm

• 22mm

• 15mm

In a centralised instantaneous hot water system, what is commonly used to heat the water?

• Immersion heater

• Combination boiler

• Solar panels

• Electric heater

What is the primary function of the open vent in an open vented system?

• To increase water pressure

• To act as a safety relief valve

• To filter impurities

• To regulate temperature

What is the minimum size of the CWSC if it feeds both hot and cold water systems?

• 200 litres

• 150 litres

• 115 litres

• 230 litres

In a direct hot water cylinder using a boiler, what is absent in the cylinder?

• Vent pipe

• Hot distribution pipe

• Heat exchanger coil

• Cold feed pipe

What is the recommended minimum distance from the exit of the cylinder to the open vent tee to stop one pipe circulation?

• 450mm

• 300mm

• 400mm

• 350mm

What is the purpose of placing cylinders on two pieces of wood or a purpose-built vented stand?

• To facilitate easy maintenance

• To increase water pressure

• To prevent condensation forming on the base

• To improve heat retention

What is the minimum size of the cold feed pipe according to BS6700?

• 32mm

• 28mm

• 15mm

• 22mm