Practice Test Geeks(CPE) Certified Packaging Engineer Practice Test
← All CPE Flashcard Decks

Testing & Quality Assurance Flashcards

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

Read the first 7 Testing & Quality Assurance flashcards as text

  1. Which vibration test method uses a random vibration profile rather than a fixed sinusoidal sweep to simulate real-world transport conditions?

    Answer: ASTM D4728

    ASTM D4728 specifies random vibration testing of shipping containers using power spectral density (PSD) profiles that better replicate actual transport environments.

  2. During a package drop test, a corner drop is most likely to identify failure modes related to:

    Answer: Concentrated impact at package corners and edges

    Corner drops concentrate impact energy at the weakest structural points of a package, revealing vulnerabilities in corner joints, seams, and internal cushioning.

  3. Which quality tool uses a fishbone diagram to organize potential causes of a defect into categories?

    Answer: Ishikawa (cause-and-effect) diagram

    The Ishikawa or fishbone diagram categorizes potential root causes (people, process, materials, machines, environment, method) into a structured visual.

  4. An FMEA in packaging development assigns a Risk Priority Number (RPN) by multiplying which three factors?

    Answer: Severity, Occurrence, Detection

    RPN = Severity × Occurrence × Detection, where each factor is rated on a scale (typically 1–10) to prioritize failure modes for corrective action.

  5. Which test evaluates the ability of a flexible film to resist crack propagation when a notch is introduced and the material is bent?

    Answer: Elmendorf tear test

    The Elmendorf tear test measures the energy required to propagate a tear through a film from a pre-cut slit, commonly used for flexible packaging films.

  6. What does OTR (Oxygen Transmission Rate) measure in packaging film testing?

    Answer: Rate at which oxygen permeates through a film per unit area per unit time

    OTR quantifies how much oxygen passes through a barrier film over time and area, expressed as cc/m²/day, and is critical for shelf-life determination.

  7. In a packaging qualification protocol, what is the difference between IQ, OQ, and PQ?

    Answer: Installation, Operational, and Performance Qualification

    IQ confirms equipment is installed correctly, OQ verifies it operates within specified parameters, and PQ demonstrates consistent performance under actual production conditions.