Practice Test Geeks(STSC) Safety Trained Supervisor Construction Practice Test
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Health Hazards and Hygiene Flashcards

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

Read the first 6 Health Hazards and Hygiene flashcards as text

  1. Asbestos-containing materials (ACM) in older buildings pose the greatest health risk when:

    Answer: Disturbed or damaged, releasing fibers into the air

    Asbestos fibers are only hazardous when airborne — intact ACM that is not disturbed poses minimal risk.

  2. What is the purpose of a medical surveillance program for construction workers exposed to hazardous substances?

    Answer: To detect early signs of occupational disease before symptoms become severe, and monitor health effects of exposure

    Medical surveillance identifies early health effects of hazardous substance exposure, allowing intervention before irreversible damage occurs.

  3. A worker exposed to excessive noise must be enrolled in a hearing conservation program when 8-hour TWA noise exposure reaches:

    Answer: 85 dBA (action level)

    OSHA requires hearing conservation programs when noise exposures reach the action level of 85 dBA as an 8-hour TWA.

  4. Ergonomic hazards in construction that contribute to musculoskeletal disorders (MSDs) include:

    Answer: Repetitive motions, awkward postures, heavy lifting, and contact stress

    MSDs are caused by ergonomic risk factors including repetition, awkward postures, forceful exertions, and contact stress from tools or surfaces.

  5. What is the correct sequence for donning (putting on) chemical protective clothing when working with highly hazardous substances?

    Answer: Inner gloves → coverall → boots → outer gloves → respirator → hood → tape seams

    The proper donning sequence ensures that seams are covered and respiratory protection is verified before final clothing is sealed in place.

  6. Occupational skin diseases in construction workers, such as contact dermatitis, are most commonly caused by exposure to:

    Answer: Portland cement (wet concrete), solvents, epoxy resins, and other skin sensitizers

    Wet cement, solvents, epoxy resins, and other construction chemicals are leading causes of occupational contact dermatitis among construction workers.