What is the purpose of the secondary vent in a secondary ventilated stack system?

• To provide additional support to the main stack

• To allow additional airflow and protect against pressure fluctuations

• To filter the air going through the main stack

• To reduce the temperature of the air in the main stack

Where is the secondary vent connected in a secondary ventilated stack system?

• Below the long radius bend going up to the wet section of the stack

• At the top of the main stack

• From just above the long radius bend going up to the dry section of the stack

• At the base of the main stack

What is the purpose of the rodding eye in a secondary ventilated stack system?

• To provide additional support to the stack

• To allow for inspection and removal of blockages

• To regulate the flow of waste water

• To measure the pressure in the stack

What sort of sysrtem is this?

• Primary vented stack

• Secondary vented stack

• Vented branch stack

• Stub stack

What is the purpose of the secondary vent ?

• To allow sewer gasses to escape

• To allow access

• To help maintain atmospheric pressure

• To reduce flow rate

Where is a ventilated branch system typically used?

• In small residential buildings

• In larger systems where the risk of trap seal loss is high

• In outdoor plumbing systems

• In low-pressure areas

How far should each branch be ventilated from the appliance in a ventilated branch system?

• No more than 500mm

• No more than 750mm

• No more than 1000mm

• No more than 1250mm

What does the ventilation in a ventilated branch system safeguard against?

• Only negative pressure fluctuations

• Only positive pressure fluctuations

• Both positive and negative pressure fluctuations

• Temperature variations in the system

What is the function of the component labeled "Main ventilating stack" in the ventilated branch system diagram?

• To provide a pathway for waste to the sewer

• To equalize pressure within the drainage system

• To bring fresh water into the system

• To serve as an access point for cleaning

What is the purpose of the "Rodding eye" as shown in the diagram?

• To allow for inspection of the system

• To prevent backflow of waste

• To filter out debris

• To serve as an access point for cleaning