Plumbing level 2- PP1 - Cold water

What does WRAS stand for?

• Water Regulation and Safety Scheme

• Water Regulation Association Scheme

• Water Regulation and Standards Scheme

• Water Regulation Advisory Scheme

What is the main purpose of WRAS approved fittings?

• To reduce water consumption

• To improve water taste

• To comply with The Water Regulations

• To increase water pressure

What replaced the individual Bye laws in England and Wales?

• The Water Quality Guidelines

• The Water Safety Standards

• The Water Act

• The Water Regulations

What is the process called when water molecules condense and fall as rain?

• Condensation

• Evaporation

• Sublimation

• Precipitation

What chemical is added to reduce phosphate levels before water enters the reservoir?

• Ferric Sulphate

• Chlorine

• Ozone

• Sulphur Dioxide

What is the purpose of air pumps within the reservoir?

• To remove impurities from the water

• To add oxygen to the water

• To increase the water pressure

• To turn the water over and stop layers of different quality and temperature forming

What is used to disinfect water in the treatment plant?

• Sulphur Dioxide

• Ozone gas

• Chlorine

• Ferric Sulphate

What is the final step before water is distributed to customers?

• Adding Sulphur Dioxide to reduce chlorine levels

• Adding Ferric Sulphate to reduce phosphate levels

• Filtering through granular activated carbon

• Screening to prevent fish and other unwanted matter

What type of pipe has recently replaced cast iron pipes?

• PVC pipe

• Steel pipe

• Copper pipe

• MDPE pipe

What is the classification for water with 150-200 ppm CaCO3?

• Moderately hard

• Slightly hard

• Hard

• Very hard