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Plumber's Licensing Exam: Practice Test 3
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Plumber's Licensing Exam: Practice Test 3
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25 Questions

1. Which of these is considered a branch?
2. It is a priority to protect a potable water supply against which of the following?
3. What is the maximum length allowed for an indirect drain from a refrigeration coil?
4. A hot water storage tank must be insulated so that it loses no more than
5. If an opening is made in a floor to allow a pipe to pass through, you are required to protect that opening from rodents by
6. The ___________________ water closet bowl is designed for maximum water conservation.
7. Glass fittings are approved for drainage pipes.
8. All distances from the fixture outlet to the trap weir must not exceed _____ inches.
9. The base of a water closet must have a watertight seal with the floor.
10. Vitrified clay tile pipe can be used for a building sewer.
11. A condensate disposal system must not include materials made of
12. When installing a drainage pipe for an automatic washing machine, you must use a pipe that is at least
13. Homeowners are allowed to decide whether seismic supports need to be installed.
14. When is it appropriate to thread schedule 40 PVC pipe to make connections?
15. Disposing of untreated liquid industrial waste into the public sewer system can result in
16. What is the primary purpose of a trap?
17. An approved type water-pressure reducing valve must be installed on a water service to a residential building if the water pressure exceeds _____ psi.
18. Gray water need not be disinfected if it is used for fixture flushing.
19. Cleanouts must be installed at ________________________________ in a building drain.
20. Which of the following cannot be used as an indirect waste pipe material?
21. The plumbing code does not regulate handheld showers beyond the standard regulations for standard shower heads.
22. Condensate from appliances can be acidic.
23. A building trap must always have a relief vent.
24. All sump pump discharge pipes require a ____________ valve.
25. How many water closets are required for a dormitory with 24 male residents?

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