Chapter 10 2021 UPC

1. Each plumbing fixture, except for those having integral traps, shall be __________________________.

• a. separately trapped by an approved water seal trap
• b. drained by means of an indirect waste line
• c. connected directly to the building drain without a trap
• d. illegal and should not be used

2. One trap may serve a set of not more than _____ single compartment sinks.

• a. two
• b. one
• c. three
• d. four

3. The maximum vertical distance for a tailpiece allowed between a fixture and the trap weir is _____.

• a. 6 inches
• b. 12 inches
• c. 18 inches
• d. 24 inches

4. A food waste disposal unit installed in restaurant, commercial, or industrial sinks _____.

• a. may share a common trap
• b. must be separately trapped
• c. should be indirectly wasted
• d. need not be trapped

5. Each plumbing fixture trap shall be protected against siphonage and backpressure by a ___________.

• a. sanitary tee
• b. vent pipe
• c. air admittance device
• d. backflow preventer

6. The developed length of a 2” trap arm, from the trap weir to the inner edge of the vent shall not exceed _____ feet.

• a. 3
• b. 5
• c. 6
• d. 10

7. The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, __________________________.

• a. may be below the trap weir
• b. shall not be below the weir of the trap
• c. must be below the weir of the trap
• d. does not need a vent

8. Each trap, except for traps within interceptors or similar devices, __________________________.

• a. shall be self-cleaning
• b. shall be one pipe size smaller than the fixture outlet
• c. shall have a cleanout on the bottom of the trap
• d. need not be vented

9. Listed _________ may be used to connect listed metal tubing traps.

• a. male adapters
• b. female adapters
• c. PEX adapters
• d. plastic adapters

10. No more than _____ approved slip joint fitting(s) may be used on the outlet side of a trap.

• a. one
• b. two
• c. three
• d. four