Question

what term means a pipe that is connected at its lower end to the junction of two or more vent pipes and that, at its upper end, is connected to another branch vent, a stack vent, a vent stack or a header, or terminates in open air.

branch vent
back vent
continuous vent
wet vent

you can adjust acetylene regulators to more than 15lbs of pressure.

select one:
true
false

every soil or waste stack shall be provided with a cleanout fitting not more than 1000mm upstream of the bottom of the stack.

Explanation:

• For the first question:
• A branch vent is a vent that connects individual fixtures or fixture drains to the vent system.
• A back vent is a vent that is connected to the drainage system on the fixture side of a trap.
• A continuous vent is a vent that is installed continuously with the drain pipe.
• A wet vent is a pipe that serves as both a drain and a vent. The description in the first question matches the definition of a wet vent.
• For the second question:
• Acetylene regulators should not be adjusted to more than 15 lbs of pressure. Adjusting it to more than 15 lbs can be dangerous as it can cause the acetylene to decompose and potentially explode. So the statement "You can adjust acetylene regulators to more than 15lbs of pressure" is false.
• For the third question:
• Plumbing codes typically require that every soil or waste stack be provided with a cleanout fitting not more than 1000mm upstream of the bottom of the stack. This is for ease of maintenance and to clear blockages if they occur.

Answer:

• First question: d. Wet Vent
• Second question: False
• Third question: (Assuming it is a True/False or other - but based on plumbing code knowledge, if it is a True/False, likely True as per standard plumbing requirements)