CPE Testing & Quality Assurance 4

Question 1

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

Accepted Answer

ASTM D4728

Answer

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

Question 2

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

Accepted Answer

Concentrated impact at package corners and edges

Answer

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

Question 3

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

Accepted Answer

Ishikawa (cause-and-effect) diagram

Answer

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

Question 4

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

Accepted Answer

Severity, Occurrence, Detection

Answer

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

Question 5

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

Accepted Answer

Elmendorf tear test

Answer

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.

(CPE) Certified Packaging Engineer Practice Test

(CPE) Certified Packaging Engineer Practice Test

CPE Testing & Quality Assurance 4