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Technical Standards and Specifications Flashcards

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

Read the first 7 Technical Standards and Specifications flashcards as text
  1. Which MIL-STD standard governs reliability testing for electronic and electrical components used in military applications?

    Answer: MIL-STD-883

    MIL-STD-883 establishes test methods and procedures for microelectronic devices used in military and aerospace applications.

  2. In IEC 61508, what is the term used to describe the probability that a safety function will be performed on demand?

    Answer: Probability of Failure on Demand (PFD)

    PFD (Probability of Failure on Demand) quantifies the likelihood that a safety function fails when a hazardous demand occurs, used for low-demand mode systems.

  3. What ASTM standard is most commonly referenced for tensile strength testing of metallic materials?

    Answer: ASTM E8/E8M

    ASTM E8/E8M is the standard test method for tension testing of metallic materials, defining specimen geometry, testing procedures, and property calculations.

  4. Which SAE standard defines the reliability program requirements for development and production of aerospace and defense systems?

    Answer: SAE ARP4754

    SAE ARP4754 provides guidelines for development of civil aircraft and systems, including reliability and safety processes during the design lifecycle.

  5. Under ISO 9001:2015, what is the primary purpose of a design validation activity?

    Answer: Ensure the product meets the needs of the intended use

    Design validation under ISO 9001 confirms that the resulting product can fulfill the requirements for the specified application or intended use.

  6. The Bellcore/Telcordia SR-332 standard is primarily used to predict reliability of what type of equipment?

    Answer: Commercial electronic equipment and telecommunications hardware

    Telcordia SR-332 (formerly Bellcore) provides a method for predicting the reliability of commercial electronic hardware using parts count and parts stress methods.

  7. In the context of ANSI/ASQ Z1.4, what does the term 'AQL' stand for and what does it define?

    Answer: Acceptable Quality Limit — the maximum defect rate considered acceptable for routine acceptance

    AQL (Acceptable Quality Limit) in Z1.4 is the maximum defects-per-hundred units that can be considered satisfactory as a process average for acceptance sampling.