This test is for preparation for the 2021 ICC Residential Plumbing (P1) Exam. This is a 60 question, 2 hour test.

5 Sample Questions

Testing of the building sewer may be accomplished with a minimum _______________ head of water with the ability to maintain such pressure for a minimum of _______________.

  • A. 8-foot, 10 minutes
  • B. 8-foot, 15 minutes
  • C. 10-foot, 10 minutes
  • D. 10-foot, 15 minutes

When tested by air upon completion of the rough piping installation, the DWV system shall be tested at _______________ or 10 inches of mercury column with the ability to maintain such pressure for a minimum of _______________.

  • A. 5 psi, 10 minutes
  • B. 5 psi, 15 minutes
  • C. 10 psi, 10 minutes
  • D. 10 psi, 15 minutes

The water-supply system shall be proved tight under a water pressure not less than the working pressure of the system, or by a minimum _______________ air test for other than plastic piping.

  • A. 5 psi
  • B. 10 psi
  • C. 20 psi
  • D. 50 psi

Where copper piping in a plumbing system is to pass through holes bored in wood studs, the pipe shall be protected by shield plates except for those holes that are a minimum of _______________ from the nearest edge of the member.

  • A. 5 /8 inch
  • B. 3 /4 inch
  • C. 1  1/4 inches
  • D. 1  1/2 inches

Shield plates required to protect piping installed through notches or bored holes in framing members shall extend a minimum of _______________ above sole plates and below top plates.

  • A. 1/2 inch
  • B. 1 inch
  • C. 2 inches 
  • D. 3 inches

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