Cold Water PowerPoint 4 Quiz

Which of the following is an approved material on the WRAS register?

• Lead

• Copper

• Wood

• Glass

What is back flow?

• Water flowing in the correct direction

• Water flowing in the opposite direction

• Water remaining stagnant

• Water evaporating

Which material is not approved for insulation according to the WRAS register?

• Plastic

• Lead

• Copper

• Stainless steel

What is one of the characteristics of good insulating material?

• It should be flammable

• It should be draught proof

• It should be thin

• It should be flexible

What is one purpose of using insulation?

• To increase heat loss

• To prevent heat transmission

• To allow moisture

• To encourage vermin

Which area is mentioned as needing insulation for pipework?

• Kitchen

• Loft area

• Living room

• Garage

What is the function of insulation in terms of heat?

• To increase heat gain

• To prevent heat loss

• To allow heat transmission

• To encourage heat loss

What is back siphonage?

• Water being drawn back due to negative pressure

• Water flowing forward due to positive pressure

• Water being pushed out due to high pressure

• Water remaining stagnant due to no pressure

Where would a double check valve be used?

• Under a sink with no air gap

• On a shower head

• Inside a refrigerator

• On a washing machine

What is an example of category 4 water?

• Chlorinated swimming pool water

• Rainwater

• Bottled water

• Tap water