Chapter 08 2021 UPC

1. All indirect waste piping that requires an air gap shall discharge into the building drainage system through ____________________________.

• a. an automatic vent
• b. an air gap of two pipe diameters
• c. drainage air gap of 1 inch minimum
• d. a trap

2. Except for refrigeration coils and ice-making machines, the minimum size of the indirect waste pipe shall not be smaller than the drain on the unit and not smaller than ___ inch(es).

• a. 3/4
• b. 1
• c. 1-1/4
• d. 1-1/2

3. Floor drains in walk-in coolers shall discharge ____________.

• a. directly to the main building drain
• b. directly to the exterior of the building
• c. to a separate drainage line discharging into an outside receptor through an air gap or airbrake
• d. to a grease interceptor

4. The developed length from the fixture outlet of a bar sink to the receptor shall not exceed ____ feet.

• a. 6
• b. 5
• c. 3
• d. 15

5. If the trap from a sink located in a bar cannot be vented, ____________________________.

• a. the drain shall discharge through an air gap or air break into an approved receptor that is vented
• b. the fixture must be relocated
• c. the discharge may be pumped to an approved receptor
• d. a drum trap shall be used

6. Drains, overflows, or relief pipes from a water distribution system shall discharge to the building drain by _____.

• a. indirect waste by means of a water-distribution airgap
• b. direct connection to the building drain
• c. direct connection to the building drain through a trap
• d. indirect waste piping through a vented trap

7. Stills, sterilizers, and similar equipment that produce waste shall be ____________________________.

• a. connected directly to the building drain
• b. directly connected to the building drain using an air break
• c. indirectly connected by means of an air gap
• d. indirectly connected to a lavatory tailpiece

8. Devices that are not regularly classified as plumbing fixtures, but which have drip or drainage outlets, shall be drained by ____________________________.

• a. a connection directly to the building
• b. indirect waste pipes discharging into an open receptor through an air gap or airbrake
• c. indirect waste piping connected to the building drain
• d. direct connection to a storm sewer

9. No plumbing fixture that is receiving discharge from indirect waste pipes shall be installed until first approved by the ____________________________.

• a. architect
• b. local health department
• c. Authority Having Jurisdiction
• d. mechanical engineer

10. A standpipe for a clothes washer shall have a minimum and maximum length of __________________.

• a. 4 inches and 12 inches
• b. 18 inches and 30 inches
• c. 18 inches and 24 inches
• d. 12 inches and 36 inches