โ† All CHST Flashcard Decks

General Flashcards

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

Read the first 7 General flashcards as text
  1. Under OSHA 29 CFR 1926, which of the following is the minimum required height for guardrail systems on construction sites?

    Answer: 42 inches

    OSHA 1926.502 requires guardrail systems to be 42 inches (plus or minus 3 inches) in height measured from the walking/working surface.

  2. A CHST conducting a job hazard analysis (JHA) for concrete formwork discovers workers may be exposed to silica dust. Which OSHA standard primarily governs silica exposure in construction?

    Answer: 29 CFR 1926.1153

    29 CFR 1926.1153 is OSHA's Respirable Crystalline Silica Standard for construction, establishing PELs and required controls.

  3. What does the acronym 'PDCA' stand for in the context of safety management systems?

    Answer: Plan, Do, Check, Act

    PDCA (Plan, Do, Check, Act) is the continuous improvement cycle foundational to safety management systems like ANSI/ASSP Z10.

  4. When evaluating a construction site's safety program, a CHST finds the experience modification rate (EMR) is 1.35. What does this indicate?

    Answer: The company's workers' comp costs are 35% above industry average

    An EMR above 1.0 indicates a worse-than-average injury history; 1.35 means costs are approximately 35% higher than the industry average.

  5. Which type of fire extinguisher is appropriate for energized electrical equipment fires on a construction site?

    Answer: Class C

    Class C extinguishers use non-conductive agents suitable for energized electrical equipment fires.

  6. Under OSHA's excavation standard (29 CFR 1926 Subpart P), how soon after a hazardous atmosphere is detected must workers be evacuated from an excavation?

    Answer: Immediately

    OSHA requires immediate evacuation of workers when a hazardous atmosphere is detected in an excavation until the hazard has been eliminated.

  7. A safety technician is reviewing incident records and calculates a Days Away, Restricted, or Transferred (DART) rate of 4.5. How is this rate expressed?

    Answer: Per 200,000 hours worked

    OSHA injury/illness rates including DART are calculated per 200,000 hours worked, which represents 100 full-time equivalent employees working one year.