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Water Supply and Distribution Flashcards

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

Read the first 6 Water Supply and Distribution flashcards as text

  1. According to the IPC, what protection is required for potable water piping installed underground in contaminated soil?

    Answer: The pipe must be sleeved or wrapped with approved protective material

    The IPC requires that potable water piping installed in contaminated soil be protected with approved sleeves, wrapping, or encasement to prevent contaminants from permeating through the pipe wall.

  2. What does the IPC specify about the separation between potable water piping and sewer piping in the same trench?

    Answer: The water pipe must be at least 12 inches above and to one side of the sewer pipe

    The IPC requires potable water piping to be at least 12 inches above the top of the sewer pipe and on a separate shelf or support when installed in the same trench.

  3. Under the IPC, what testing is required for a newly installed water supply system before it is put into service?

    Answer: A pressure test at not less than the working pressure, maintained for a minimum observation period

    The IPC requires a hydrostatic pressure test of the water supply system at the working pressure or a minimum of 50 psi for a specified observation period to verify the system is leak-free.

  4. According to the IPC, what is the minimum required pipe size for a water supply branch serving a bathtub?

    Answer: 1/2 inch

    The IPC requires a minimum 1/2-inch pipe for the water supply branch serving a bathtub.

  5. What does the IPC require regarding the installation of a water hammer arrestor?

    Answer: They are required where quick-closing valves create water hammer

    The IPC requires water hammer arrestors where quick-closing valves — such as those on washing machines, dishwashers, and solenoid valves — create water hammer in the piping system.

  6. Under the IPC, what is required when a potable water system connects to a fire sprinkler system?

    Answer: A backflow preventer appropriate for the hazard level must be installed

    The IPC requires an appropriate backflow prevention device where a potable water system connects to a fire sprinkler system to prevent potential contamination from stagnant water, antifreeze, or other substances.