Cold Water Unit Assessment

When installing a new indirect cold water system, which of the following should happen, according to the Water Regulations?

• a. One tap, normally the kitchen sink, should be drawn directly from the supply pipe
• b. One tap, normally the kitchen sink, should have a dedicated distribution pipe from the storage cistern
• c. Mixer taps will require double check valves
• d. Mixer taps should never be installed due to the pressure differences.

According to the Water Regulations, a drain off valve should be installed:

• a. At every draw off point
• b. At every high point in the system
• c. At every low point in the system
• d. Above the cold water storage cistern.

What type of valve is designed to shut off the supply of water in a cistern at a predetermined level?

• a. Stop valve
• b. Fullway gate valve
• c. Float operated valve
• d. Isolation valve.

What year did the Water Regulations come into force in England and Wales?

• a) 2006.
• b) 2003.
• c) 1999.
• d) 1996.

When installing a new cold water service pipe from the boundary stop tap to the stop tap within the property, it should normally be buried between what depths below ground level?

• 135 mm and 1750 mm
• 350 mm and 750 mm
• 1350 mm and 1750 mm
• 1350 mm and 750 mm

Which one of the following pipework materials is not permitted to be installed in a new cold water system?

• a) Copper.
• b) Lead.
• c) Stainless steel.
• d) MDPE.

Which one of the following should be positioned immediately above the cold water supply stop valve near to the point of entry into a building?

• a) Water filter.
• b) Pressure reducing valve.
• c) Flow limiting valve.
• d) Drain valve.

A cold water system that includes a cistern that is only used to supply the hot water storage cylinder is known as

• a direct cold water system
• an indirect cold water system
• an intermediate cold water system
• an unvented water system.

The purpose of the cold water distribution pipe in an indirect system is

• to fill the cold water storage cistern
• to fill the cylinder
• to supply cold water to outlets
• all of the above.

The correct name for the pipe which runs from the main property stop valve to the main cold

• a) distribution pipe
• b) supply pipe
• c) communication pipe
• d) service pipe.