Practice Test Geeks(PC) Plumber Certification Practice Test
← All PC Flashcard Decks

Plumber Safety & Code Compliance 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 Plumber Safety & Code Compliance flashcards as text

  1. When working in a confined space with a potential for oxygen deficiency, what is the minimum acceptable oxygen level before entry is permitted?

    Answer: 19.5%

    OSHA requires a minimum of 19.5% oxygen in confined spaces before workers may enter without supplied-air respirators.

  2. According to the IPC, what is the minimum distance a cleanout must be located from a wall or obstruction to allow rodding access?

    Answer: 18 inches

    The IPC requires cleanouts to be installed with at least 18 inches of clearance in front for rodding equipment access.

  3. A plumber discovers asbestos pipe insulation while roughing in new supply lines. What is the correct immediate action?

    Answer: Stop work, leave the area undisturbed, and notify supervisor

    Disturbing asbestos-containing materials requires stopping all work immediately and reporting to a supervisor so licensed abatement can be arranged.

  4. Under the UPC, what is the required air gap between the flood level rim of a fixture and the lowest point of a potable water supply outlet?

    Answer: 2 pipe diameters (minimum 1 inch)

    The UPC requires an air gap of at least twice the inside diameter of the supply pipe, with a minimum of 1 inch, to prevent backflow contamination.

  5. Which OSHA standard specifically governs excavation and trenching safety for plumbers working in trenches deeper than 5 feet?

    Answer: 29 CFR 1926.652

    29 CFR 1926.652 (Subpart P) governs excavation and trenching safety, requiring protective systems for trenches 5 feet or deeper.

  6. What is the maximum allowable water pressure at a building's plumbing fixtures according to most plumbing codes?

    Answer: 80 psi

    Most plumbing codes, including the IPC and UPC, set a maximum static water pressure of 80 psi at any fixture to protect system components.

  7. When soldering copper pipe joints in a wall cavity, which fire safety measure is required by OSHA and fire codes?

    Answer: Place a fire-resistant shield behind the work area

    A fire-resistant shield or heat-resistant cloth must be placed behind the pipe to protect combustible framing materials during soldering.