DFU's

What is a DFU in plumbing?

• A type of pipe material

• A numerical value assigned to each fixture

• A specific type of drainage system

• A plumbing tool used for cleaning drains

Which plumbing code is the video based on?

• 2016 European Plumbing Standards

• 2020 National Plumbing Code

• 2018 Uniform Plumbing Code

• 2015 International Plumbing Code

What is the standard flush volume for toilets mentioned in the video?

• 2.5 gallons

• 1.2 gallons

• 1.6 gallons

• 2.0 gallons

What is the minimum trap and trap arm size for a kitchen sink according to the video?

• Inch and a quarter

• Three inches

• Two inches

• Inch and a half

How many DFUs does a shower contribute to the system?

• 3 DFUs

• 4 DFUs

• 2 DFUs

• 1 DFU

What is the maximum number of water closets allowed on a horizontal branch according to the video?

• Two

• Three

• Four

• Six

What is the DFU load on pipe section 'N'?

• 15 DFUs

• 32 DFUs

• 21 DFUs

• 28 DFUs

What size pipe is required for section 'U'?

• Five inch

• Four inch

• Three inch

• Two inch

What does the 'trap arm' refer to?

• The section of pipe between the trap and the vent

• A tool used to clear blockages in the trap

• The curved section of the drain pipe

• The vertical pipe that leads from the fixture to the drain

What is the significance of sub note 2 for kitchen sinks?

• It indicates the sink's material

• It determines the sink's depth

• It requires a two inch minimum drain

• It specifies the color of the sink