Cold Water 6035 LO2

Grey water is safe for drinking

• True

• False

What colour is MDPE?

• Black

• Blue

• Red

• Yellow

At which point on a cold water supply system do the Water Regulations come into force?

• From the Boundary stop valve

• From the ferrule

• From the water treatment plant

• From the stop valve inside the property

What is the purpose of the stainless steel screen found in warning pipe connectors and cistern vents?

• To prevent filtered air from entering the cistern

• To prevent dead insects fro leaving the cistern in case of overflow

• To prevent insects/vermin from entering the system

• To provide frost protection

According to the Water Regulations, where should a stop valve be placed

• Inside the airing cupboard, as close as possible to the door

• Under the floorboards near the front door

• Inside the building, as close as possible to the entry point of the pipe.

• Outside the building as close as possible to the front door

What is the maximum amount of MDPE that should be visible above floor level?

• 350mm

• 150mm

• 450mm

• 250mm

Where should drain off valves be placed?

• At the high point of every run

• Anywhere that it can't be seen

• At the low point of every pipe run

• None of these

In an indirect cold water system, why should the cold feed be positioned above the cold distribution pipe?

• To prevent cross flow

• To allow more pressure in the cold distribution pipe than the cold feed

• To prevent corrosion

• To prevent scalding should the supply be interrupted

What is the minimum size of distribution pipe coming from a CWSC?

• 15mm

• 22mm

• 28mm

• 35mm

According to the Water Regulations, Water Meters must be installed in all new builds

• True

• False