Phase 2 Cold Water

What is a form of non-mechanical backflow prevention

• Drain off valve

• Double Check Valve

• Air gap

• isolation valve

What are the 3 types of water saving urinal flushing devices?

• Hydraulic impulse valve

• Time operated switch

• Sensor solenoid valve

• Automatic flushing syphon

What is the minimum depth MDPE should be buried at?

• 750

• 1650

• 850

• 1350

What are the 2 types of cold-water systems?

• Direct

• Indirect

• Hose fed

• multi fed

What fluid category do washing machines and dishwashers come under?

• 3

• 1

• 5

• 4

Water Regs state that a CWSC must be capable of providing Wholesome/Potable water

• TRUE

• FALSE

At 4 degrees, 1 litre of water weighs 1kg

• TRUE

• FALSE

How much clearance is needed above a CWSC to allow for maintenance and cleaning purposes

• 650mm

• 420mm

• 350mm

• 400mm

What is the minimum distance between the F.O.V and the top of the CWSC

• 25mm

• 100mm

• 75mm

• 50mm

The cold feed outlet on an indirect system should be a minimum of how high up in a CWSC

• 25mm

• 100mm

• 50mm

• 80mm