Which part of the Building regulations is concerned with drainage and waste disposal?

• Part G

• Part H

• Part N

• Part A

What does Building regulations part G cover?

• Drainage and waste disposal

• Sanitation, hot water safety and water efficiency

• Electrical safety

• Fire safety

Drainage systems in England and Wales must comply with Building Regulations part:

• Part H

• Part G

• Part N

• Part A

In Northern Ireland, which part of the Building Regulations must drainage systems comply with?

• Part H

• Part G

• Part N

• Part A

What is the function of the vent pipe in a standard domestic soil stack?

• To carry waste water out of the building

• To allow air to enter the system to operate at atmospheric pressure

• To prevent water from flowing back into the sink

• To heat the water before it enters the system

What could happen if the pressure in the vent pipe were to vary?

• The water flow could increase unexpectedly

• The system could operate more efficiently

• It could lead to trap seal loss, allowing foul air to enter the dwelling

• The pipes could freeze in cold weather

What is the function of the soil pipe in a soil stack system?

• To supply water to the building

• To take all the effluent away from the building

• To ventilate the building

• To support the building structure

Which standards must all soil stack systems comply with?

• BS EN 12056 and part G

• BS EN 12057 and part H

• BS EN 12056 and part H

• BS EN 12058 and part I

What is the purpose of installing a trap with appliances connected to the drainage system?

• To prevent water theft

• To prevent foul air from entering the building

• To improve water pressure

• To filter the water

What is the minimum depth of a water seal in a trap going into a soil stack according to the compliance guidelines?

• 25mm

• 50mm

• 75mm

• 100mm