Practice Test Geeks(CCST) Certified Control Systems Technician Practice Test
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Safety Standards & Regulatory Compliance in Control Systems Flashcards

7 cards from real CCST 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 IEC standard specifically addresses functional safety of electrical/electronic/programmable electronic safety-related systems?

    Answer: IEC 61508

    IEC 61508 is the foundational standard for functional safety of E/E/PE safety-related systems, covering the entire safety lifecycle.

  2. What does SIL stand for in the context of functional safety standards?

    Answer: Safety Integrity Level

    SIL (Safety Integrity Level) is a measure of the risk reduction provided by a safety function, ranging from SIL 1 (lowest) to SIL 4 (highest).

  3. Under OSHA's Process Safety Management (PSM) standard 29 CFR 1910.119, which chemical threshold triggers PSM requirements for flammable liquids?

    Answer: 10,000 pounds

    PSM requires 10,000 pounds as the threshold quantity for flammable liquids at or above their normal boiling point.

  4. Which layer of protection concept is used in LOPA (Layer of Protection Analysis) to quantify risk reduction?

    Answer: Risk Reduction Factor (RRF)

    RRF (Risk Reduction Factor) quantifies how much each independent protection layer reduces risk frequency in a LOPA study.

  5. In ISA-84 / IEC 61511, what is the term for the complete set of hardware and software that implements one or more safety instrumented functions?

    Answer: Safety Instrumented System (SIS)

    A Safety Instrumented System (SIS) is the complete system—including sensors, logic solvers, and final elements—that performs one or more SIFs.

  6. What is the primary purpose of a Pre-Startup Safety Review (PSSR) under OSHA PSM regulations?

    Answer: Confirm that new equipment meets design specifications before introducing hazardous materials

    A PSSR ensures that construction and equipment are in accordance with design specs and safety, health, and environmental requirements before startup.

  7. Which NFPA standard governs the installation of fire and gas detection systems in industrial occupancies?

    Answer: NFPA 72

    NFPA 72 (National Fire Alarm and Signaling Code) covers the installation, testing, and maintenance of fire alarm and gas detection systems.