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Certified Safety Professional (CSP) Random Flashcards

7 cards from real CSP 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. A workplace noise exposure survey finds a worker is exposed to 95 dBA for 4 hours and 90 dBA for 4 hours. Using OSHA's permissible exposure limits, what is the dose?

    Answer: 125%

    Dose = (4/4) + (4/8) = 1.0 + 0.5 = 1.5 = 150%; at 95 dBA the PEL is 4 hours and at 90 dBA it is 8 hours.

  2. Which type of fire extinguisher is specifically rated for use on energized electrical equipment fires (Class C)?

    Answer: Non-conductive agent extinguisher (CO2 or dry chemical)

    Class C fires involving energized electrical equipment require non-conductive extinguishing agents such as CO2 or dry chemical to avoid electrical shock to the operator.

  3. Under OSHA's Respiratory Protection Standard (29 CFR 1910.134), an Assigned Protection Factor (APF) of 10 means the respirator:

    Answer: Is approved for use up to 10 times the PEL

    An APF of 10 means the respirator is expected to reduce workplace concentration by a factor of 10, so it can be used when exposures are up to 10× the OEL.

  4. The Haddon Matrix is a tool used in safety analysis that organizes factors across three phases and three columns. The three phases are:

    Answer: Pre-event, Event, Post-event

    The Haddon Matrix analyzes injury factors across Pre-event, Event, and Post-event phases against host, agent/vehicle, and environment factors.

  5. Which term describes the probability that a system or component will perform its required function under stated conditions for a specified period of time?

    Answer: Reliability

    Reliability is the probability that a system performs its intended function without failure over a specified time interval and under specified conditions.

  6. According to OSHA's Excavation Standard (29 CFR 1926 Subpart P), a competent person must inspect excavations:

    Answer: Before each work shift and after any event that could affect stability

    OSHA requires a competent person to inspect excavations before each shift and following any rain, earthquake, or other event that could increase hazard potential.

  7. In a fault tree analysis (FTA), an AND gate indicates that:

    Answer: All input events must occur simultaneously for the output event to occur

    An AND gate in a fault tree requires ALL input events to occur for the output (top) event to occur, indicating redundant safeguards must all fail simultaneously.