Engineering > EXAM > Plumbing Test Questions & Answers | 105 Questions with 100% Correct Answers | Updated & Verified (All)

Plumbing Test Questions & Answers | 105 Questions with 100% Correct Answers | Updated & Verified

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1. Testing of the building sewer shall be accomplished with a minimum____ head of water with the ability to maintain such pressure for a minimum of __________. - ✔✔10- foot, 15 minutes 2. When t... ested by air, the DWV system shall be tested at ____ or 10 inches of mercury column with the ability to maintain such pressure for a minimum of _______. - ✔✔5 pounds, 15 minutes 3. 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. - ✔✔50 psi 4. Where copper piping is to press 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. - ✔✔1 1/2 5. 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. - ✔✔2 inches 6. Unless provided with a relieving arch, a building drain passing through a foundation wall shall pass through a pipe sleeve sized ______ greater than the pipe passing through. - ✔✔two pipe sizes [Show More]

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