Practice Test Geeks(PC) Plumber Certification Practice Test
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Installation Techniques Flashcards

7 cards from real PC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Installation Techniques flashcards as text

  1. Which of the following is the correct method for joining CPVC pipe to fittings?

    Answer: Two-step process: apply CPVC primer then CPVC cement

    CPVC requires a two-step process: apply CPVC-compatible purple primer to both surfaces, then apply CPVC solvent cement and join within the open time.

  2. A plumber is installing a toilet and notices the flange is 1/4 inch below the finished tile floor. What is the correct solution?

    Answer: Install a flange extension ring and standard wax ring

    A closet flange extension ring raises the flange surface to the correct height at or slightly above the finished floor, used in conjunction with a standard wax ring for a proper seal.

  3. What is the correct way to test a newly installed DWV (drain, waste, vent) system before closing walls?

    Answer: Perform a hydrostatic (water) test or air pressure test to the code-specified pressure

    Code requires a hydrostatic test (typically 10-foot water column/4.3 PSI) or air test (3 PSI for 15 minutes) on DWV systems before covering with wall materials.

  4. When installing a washing machine standpipe, what is the minimum height of the standpipe above the trap weir?

    Answer: 24 inches

    The IPC requires a washing machine standpipe to extend a minimum of 18 inches but not more than 42 inches above the trap weir to prevent the machine from siphoning the trap.

  5. In a multi-story building, where must a relief vent be installed relative to a circuit vent system?

    Answer: Between the circuit vent and the soil stack

    A relief vent must be installed between the circuit vent and the soil or waste stack to prevent pressure from the stack from affecting the venting of the circuit.

  6. What is the maximum developed length of a trap arm for a 1.5-inch fixture drain?

    Answer: 3.5 feet

    The IPC limits the trap arm of a 1.5-inch drain to a maximum developed length of 3.5 feet from the trap weir to the vent connection to maintain the water seal.

  7. When installing copper pipe using push-to-connect (SharkBite) fittings, which surface preparation step is mandatory?

    Answer: Deburr and mark the insertion depth on the pipe

    The pipe end must be cut square, deburred, and marked with the correct insertion depth to ensure the pipe reaches the fitting's O-ring and gripping teeth for a leak-free connection.