Practice Test Geeks(SPED) Society of Piping Engineers and Designers Certification Practice Test
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Pressure Testing & Commissioning Flashcards

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

Read the first 7 Pressure Testing & Commissioning flashcards as text

  1. What ASME B31.3 hydrostatic test pressure multiplier is applied to the design pressure for normal fluid service?

    Answer: 1.5×

    ASME B31.3 requires a hydrostatic test pressure of at least 1.5 times the design pressure for normal fluid service piping.

  2. During commissioning of a utility water system, a valve is found to pass slightly when in the closed position. This deficiency is classified as which punch list category?

    Answer: Category A (blocks mechanical completion)

    Valve passing in the closed position is a Category A punch item because it can affect safe operation and must be resolved before mechanical completion sign-off.

  3. Which test method uses acoustic emission sensors placed on the pipe exterior to detect leak location during pressurization?

    Answer: Acoustic emission testing (AET)

    Acoustic emission testing detects and locates leaks by analyzing high-frequency stress waves emitted from crack growth or fluid escaping through defects.

  4. When pressure testing a piping system with multiple pressure ratings, the test pressure is governed by which component?

    Answer: The lowest-rated component in the system

    The test pressure must not exceed the capability of the weakest (lowest-rated) component in the system to prevent damage during testing.

  5. Which commissioning activity verifies that instrument transmitters are reading correctly at known process conditions before startup?

    Answer: Loop checking

    Loop checking involves applying a known signal or process condition and verifying the entire measurement loop reads correctly at the control system.

  6. A piping system is returned to service after a repair weld without re-testing. Under ASME B31.3, what minimum post-weld examination is required?

    Answer: Examination per the original construction code and Owner approval

    ASME B31.3 requires repairs to be examined and tested in accordance with the original construction requirements, subject to Owner-authorized alternatives.

  7. What is the purpose of a 'golden weld' or 'tie-in weld' lock-out procedure during pressure testing?

    Answer: To prevent test pressure from entering sections not yet ready for testing

    Tie-in weld isolation procedures ensure that pressurized test sections are physically separated from adjacent piping not yet constructed or cleared for testing.