CHST CHST - Construction Health and Safety Technician Incident Investigation and Reporting Questions and Answers 4 — Questions and Answers
Question 1: OSHA requires employers to orally report a fatality to the nearest OSHA office within:
- 24 hours
- 8 hours (Correct answer)
- 48 hours
- 72 hours
Correct answer: 8 hours
Under 29 CFR 1904.39, employers must report any work-related fatality to OSHA within 8 hours of learning about it.
Question 2: Which of the following events MUST be reported to OSHA within 24 hours (not 8 hours)?
- An employee fatality
- In-patient hospitalization of three or more employees
- Amputation of a fingertip (Correct answer)
- Loss of an eye
Correct answer: Amputation of a fingertip
Amputations and losses of an eye must be reported to OSHA within 24 hours, while fatalities and in-patient hospitalizations of any number trigger the 8-hour reporting requirement.
Question 3: A change analysis in incident investigation is best used when:
- The investigation team cannot agree on who was at fault
- A new process, equipment, or condition was recently introduced before the incident (Correct answer)
- The incident involved multiple subcontractors
- OSHA has already issued a citation
Correct answer: A new process, equipment, or condition was recently introduced before the incident
Change analysis systematically compares the situation before and after a change was introduced, making it ideal for incidents preceded by a process, equipment, or procedural modification.
Question 4: The OSHA 301 Injury and Illness Incident Report must be completed within how many calendar days of a recordable incident?
- 7 days (Correct answer)
- 24 hours
- 30 days
- 15 days
Correct answer: 7 days
OSHA requires the 301 form (or equivalent) to be completed within 7 calendar days after the employer learns of a recordable work-related injury or illness.
Question 5: During a post-incident interview, a best practice is to:
- Interview all witnesses together to save time
- Ask leading questions to confirm the supervisor's initial account
- Interview witnesses separately and use open-ended questions (Correct answer)
- Delay interviews until the OSHA inspection is complete
Correct answer: Interview witnesses separately and use open-ended questions
Separate interviews with open-ended questions prevent witness contamination and elicit more accurate, detailed accounts of what occurred.
Question 6: Which Heinrich safety triangle ratio concept suggests that for every major injury there are many minor incidents and near-misses below it?
- Pareto principle
- Swiss cheese model
- Heinrich's triangle (1:29:300) (Correct answer)
- Domino theory
Correct answer: Heinrich's triangle (1:29:300)
Heinrich's triangle proposes a ratio of 1 major injury for every 29 minor injuries and 300 near-miss events, emphasizing near-miss investigation to prevent serious incidents.
Question 7: An employee slips on ice at the employer's parking lot while walking into work. Under OSHA recordkeeping, this injury is generally:
- Recordable because it occurred on employer property
- Not recordable because the parking lot is excluded from the work environment definition (Correct answer)
- Recordable only if the employee lost more than one day of work
- Recordable if the employer failed to apply ice melt
Correct answer: Not recordable because the parking lot is excluded from the work environment definition
OSHA exempts injuries in employer-controlled parking lots, loading docks, and access roads during normal commuting from the definition of the work environment, so such injuries are generally not recordable.
CHST CHST - Construction Health and Safety Technician Incident Investigation and Reporting Questions and Answers 4
OSHA requires employers to orally report a fatality to the nearest OSHA office within: