Drainage System Quiz

What is the primary function of drainage pipework systems?

• To supply clean water to appliances

• To take solid and liquid wastes out of the dwelling

• To heat the dwelling

• To provide ventilation

Through which components is waste discharged in a drainage system?

• Through a filter and a pump

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

• Through a vent and a chimney

• Through a radiator and a duct

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

• To allow air to enter the system and maintain atmospheric pressure.

• To remove effluent from the building.

• To heat the water in the system.

• To filter impurities from the air.

What could happen if the pressure in the vent pipe varies?

• Trap seal loss, allowing foul air to enter the dwelling.

• Increased water flow in the soil pipe.

• Reduced air quality in the building.

• Enhanced efficiency of the heating system.

What is the primary role of the soil pipe in a domestic stack?

• To take all the effluent away from the building.

• To provide ventilation to the system.

• To heat the building.

• To supply water to the building.

Which standards must all systems comply with according to the document?

• Part H and BS EN 12056.

• ISO 9001 and ISO 14001.

• ASTM and ANSI.

• IEC and IEEE.

What standards must appliances, pipes, and fittings comply with according to the document?

• American standards

• European standards

• Asian standards

• Australian standards

What is the minimum depth of the water seal in a trap as specified in the document?

• 30mm

• 40mm

• 50mm

• 60mm

What must be provided for all water supply points inside the building to prevent flooding?

• Heating

• Drainage

• Insulation

• Ventilation

What is the minimum trap seal depth that must be maintained by the waste pipe diameter and gradient after an appliance has been used?

• 15mm

• 20mm

• 25mm

• 30mm