Practice Test Geeks(SPED) Society of Piping Engineers and Designers Certification Practice Test
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Piping Design Principles & Standards 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.

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  1. Which document defines the piping material requirements for a specific service, including pipe grade, fittings, and valves?

    Answer: Piping Material Specification (PMS)

    A Piping Material Specification (PMS) or Piping Class document defines all materials, ratings, end connections, and components approved for each service class.

  2. What is the standard flange pressure-temperature rating class used for low-pressure steam service in many refinery applications?

    Answer: Class 150

    ASME B16.5 Class 150 flanges are commonly used for low-pressure steam and moderate-pressure services in refineries and process plants.

  3. On a P&ID, what symbol is typically used to represent a control valve?

    Answer: A bow-tie or butterfly shape with a circle on top indicating the actuator

    Control valves on P&IDs are shown as a bow-tie (globe valve body) symbol with an actuator circle above, per ISA 5.1 symbology standards.

  4. What is the recommended slope for steam condensate return lines to ensure proper drainage?

    Answer: 1/8 inch per foot minimum

    Steam condensate lines are typically sloped a minimum of 1/8 inch per foot in the direction of flow to prevent water hammer and ensure proper drainage.

  5. Which fitting type provides the strongest and most leak-resistant joint for high-pressure piping?

    Answer: Butt weld fitting

    Butt weld fittings, when properly welded, create a full-penetration joint that is as strong as the pipe itself and is preferred for high-pressure, high-temperature service.

  6. What is the primary purpose of a pressure safety valve (PSV) in a piping system?

    Answer: To relieve overpressure and protect equipment from exceeding design pressure

    A PSV is a last line of defense that automatically opens to vent fluid when system pressure exceeds the design limit, preventing vessel or piping failure.

  7. What is the term for the allowable distance a pipe can span between supports without excessive deflection?

    Answer: Support span

    Support span is the maximum allowable distance between pipe supports, determined by pipe size, material, fluid weight, and deflection limits.