GMJ 6035 level 2 cold water No.2

When connecting a warning pipe to a domestic storage cistern, the pipe must contain which one of the following?

• A bottle trap

• An insect screen

• A siphon tube

• A service valve

The best way to prevent pipework heating up in warm areas of the building is to?

• Apply trace heating to the pipework

• Install localised pipework ventilation

• Cover the pipework with insulation

• Increase water pressure to the pipework

Which one of the following is the minimum distance that must be left between the roof and the top of any storage cistern for maintenance purposes?

• 200mm

• 250mm

• 300mm

• 350mm

What is the recommended clip spacing distance for a 15mm horizontal plastic polybutylene pipe?

• 300mm

• 700mm

• 900mm

• 200mm

What type of backflow prevention device may be required to be fitted to a mains fed shower valve?

• Anti-vacuum valves

• A break cistern

• Double check valve

• A single check valve

Which one of the following would be used to connect cold water supply pipework to the float operated valve in a WC flushing cistern

• A heater tee

• a backplate elbow

• Angled service valve with screw thread connection

• Compression differential bypass valve

The type of fitting that cannot be used when connecting copper cold water pipework to existing copper pipework is

• Solvent weld

• compression

• End feed

• pressfit

The servicing details for a water conditioner can normally be found in

• Building regulations document H

• British standard EN 806

• Guide to the water regulations

• Manufacturers installation instructions

Which one of the following is most likely to be carried out during planned routine maintenance on a cold water system?

• Fill the system with inhibitor

• Power flush the system

• Check the water flow rate at the outlets

• Replacement of all terminal fittings

When undertaking a routine maintenance inspection of a cold water storage cistern, it is found that the warning pipe discharges into the nearby feed and expansion cistern. What action should be taken?

• Nothing - the installation complies with regulations

• Install a check valve in the warning pipe

• Provide a separate warning pipe to each cistern

• Install an anti-vacuum valve in the warning pipe