Practice Test Geeks(CES) Certified Environmental Specialist Practice Test
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Health and Safety Management Flashcards

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

Read the first 7 Health and Safety Management flashcards as text

  1. Under OSHA's Process Safety Management (PSM) standard (29 CFR 1910.119), a Process Hazard Analysis (PHA) must be updated and revalidated at least every:

    Answer: 5 years

    PSM requires that PHAs be updated and revalidated at least every five years to capture process changes, incidents, and new hazard information.

  2. Which chemical category has the lowest IDLH (Immediately Dangerous to Life or Health) value among common industrial air contaminants?

    Answer: Hydrogen cyanide

    Hydrogen cyanide has an IDLH of 50 ppm, much lower than CO (1,200 ppm), H2S (100 ppm), and ammonia (300 ppm), reflecting its extreme acute toxicity.

  3. A CES candidate reviews an industrial hygiene sampling report showing a TWA of 0.08 ppm for benzene against an OSHA PEL of 1 ppm. What is the correct interpretation?

    Answer: Exposure is below the action level (0.5 ppm) — no additional action required

    Benzene's OSHA action level is 0.5 ppm; a TWA of 0.08 ppm is well below both the action level and PEL, so no regulatory action is required under 29 CFR 1910.1028.

  4. Which element is REQUIRED in an emergency response plan under 29 CFR 1910.120(q)?

    Answer: Pre-emergency planning and coordination with outside parties

    HAZWOPER emergency response plans must include pre-emergency planning and coordination with outside parties (fire, EMS, local agencies) among other required elements.

  5. Personal air sampling for worker exposure assessment is preferred over area sampling because it:

    Answer: Captures the actual breathing zone concentration experienced by the worker

    Personal (breathing zone) sampling measures the concentration of air contaminants that the specific worker actually inhales, reflecting true exposure better than fixed-location area samples.

  6. Under 40 CFR Part 261, a waste that is ignitable, corrosive, reactive, or toxic by characteristic is classified as:

    Answer: Characteristic hazardous waste

    Characteristic hazardous wastes are defined by four properties — ignitability (D001), corrosivity (D002), reactivity (D003), and toxicity (D004–D043) — rather than appearing on EPA's specific waste lists.

  7. A lockout/tagout (LOTO) procedure under 29 CFR 1910.147 is designed to protect workers from:

    Answer: Unexpected energization or startup of machinery during servicing

    LOTO procedures control hazardous energy — electrical, mechanical, hydraulic, pneumatic, chemical, thermal — to prevent unexpected equipment startup or energy release during maintenance.