Plumbing ripka ch7 213,214

What is the purpose of vent piping in a sanitary drainage system?

• To size the piping systems for the entire job

• To ensure proper installation within the local plumbing code

• To convey rainwater to the storm sewer

• To provide circulation of air and protect trap seals

What do waste pipes convey in a building?

• Liquid waste that is free from fecal matter

• Solid or semisolid materials

• Waterborne waste into the building drain

• Fecal matter from water closets

What is the measure of the probable discharge of wastewater and waterborne waste into a drainage system?

• Stormwater drainage piping

• Drainage fixture unit (dfu)

• Sanitary drainage piping size

• Vent piping circulation

What is the basis of the drainage fixture unit system?

• 1 drainage fixture unit (dfu) = 10 gal. per min (gpm)

• 1 drainage fixture unit (dfu) = 1 cu ft of water

• 1 drainage fixture unit (dfu) = 7½ gal. per min (gpm)

• 1 drainage fixture unit (dfu) = 72 gal. per min (gpm)

What is the minimum fixture trap and drain size based on?

• The ability to design and install sanitary drainage systems

• The locations of the water supply and stormwater piping

• The number and type of plumbing fixtures and appliances

• The smallest size pipe into which the fixture may drain

What is the wastewater discharge rate of a lavatory in the drainage fixture unit system?

• 15 gal. of water per minute

• 5 gal. of water per minute

• 10 gal. of water per minute

• 7½ gal. of water per minute

What angle makes a pipe a horizontal pipe in plumbing systems?

• 45° from the horizontal plane

• Less than 45° from the horizontal plane

• Less than 45° from the vertical plane

• 45° from the vertical plane

What angle makes a pipe a vertical pipe in plumbing systems?

• 45° from the vertical plane

• Less than 45° from the horizontal plane

• 45° from the horizontal plane

• Less than 45° from the vertical plane

Where can the drainage fixture unit values for various plumbing fixtures be found?

• In the vent piping system

• In a plumbing code

• In the local plumbing code

• In the storm sewer system

What is the purpose of stormwater drainage piping?

• To convey rainwater or other precipitation to the storm sewer

• To provide circulation of air and protect trap seals

• To size the piping systems for the entire job

• To ensure proper installation within the local plumbing code