drainage systems

What does Building regulations part H focus on?

• Sanitation, hot water safety and water efficiency.

• Drainage and waste disposal.

• Electrical safety.

• Fire safety measures.

Answer explanation

Building regulations part H focuses on drainage and waste disposal, making it the correct choice.

Building regulations part G covers which of the following aspects?

• Fire safety measures.

• Electrical safety.

• Drainage and waste disposal.

• Sanitation, hot water safety and water efficiency.

Answer explanation

Building regulations part G covers sanitation, hot water safety, and water efficiency, making it the correct choice.

What is the purpose of drainage pipework systems?

• To supply water to appliances

• To take the solid and liquid wastes from the appliances out of the dwelling

• To generate energy from waste products

• To purify the solid and liquid wastes

Answer explanation

The purpose of drainage pipework systems is to take the solid and liquid wastes from the appliances out of the dwelling, not to supply water, generate energy, or purify the wastes.

How should the drainage of wastes be conducted to avoid health problems?

• Randomly and quickly

• Safely and hygienically

• Slowly and manually

• Using high technology equipment

Answer explanation

To avoid health problems, drainage of wastes should be conducted safely and hygienically to prevent contamination and the spread of diseases.

What is the correct sequence for the discharge of waste product in a drainage system?

• Through a trap, down a discharge branch, to a soil stack, and to the underground sewer

• Directly to the underground sewer without any traps or branches

• To a soil stack, through a trap, and then to the underground sewer

• Down a discharge branch, through a trap, to a soil stack, and then evaporated

Answer explanation

The correct sequence for the discharge of waste product in a drainage system is through a trap, down a discharge branch, to a soil stack, and to the underground sewer.

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

• It allows water to flow out of the system.

• It allows air to enter the system to operate at atmospheric pressure.

• It prevents air from entering the system.

• It carries waste directly to the sewer.

Answer explanation

The vent pipe allows air to enter the system to operate at atmospheric pressure, preventing airlock and ensuring proper drainage in the soil stack.

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

• It could improve the efficiency of the system.

• It could cause the system to operate at a higher pressure.

• It could lead to trap seal loss, which would allow foul air to enter the dwelling.

• It could result in an increase in water flow rate.

Answer explanation

Variations in pressure in the vent pipe could lead to trap seal loss, allowing foul air to enter the dwelling, which is the correct choice.

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

• To bring fresh water into the building

• To take all the effluent away from the building

• To regulate the temperature within the building

• To provide electrical grounding for the building

Answer explanation

The function of the soil pipe in a soil stack system is to take all the effluent away from the building, not to bring fresh water, regulate temperature, or provide electrical grounding.

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 F

Answer explanation

The correct choice is BS EN 12056 and part H, as all soil stack systems must comply with these standards.

With which standards should appliances, pipes, and fittings comply according to the document?

• National standards

• European standards

• International standards

• Manufacturer's standards

Answer explanation

According to the document, appliances, pipes, and fittings should comply with European standards.