CHMM Health and Safety Management 3 — Questions and Answers
Question 1: A HAZWOPER site worker who has not worked at a hazardous waste site for 12 months must complete:
- 8-hour annual refresher training (Correct answer)
- 40-hour initial training
- 24-hour initial training
- 16-hour site-specific training
Correct answer: 8-hour annual refresher training
29 CFR 1910.120(e)(8) requires all HAZWOPER-trained workers to complete 8 hours of annual refresher training to maintain certification.
Question 2: Which document is required by OSHA PSM (29 CFR 1910.119) to analyze what can go wrong and the consequences of those failures?
- Process Hazard Analysis (PHA) (Correct answer)
- Job Hazard Analysis (JHA)
- Pre-startup Safety Review (PSSR)
- Management of Change (MOC) record
Correct answer: Process Hazard Analysis (PHA)
PSM requires a Process Hazard Analysis (PHA) to identify, evaluate, and control hazards of processes involving highly hazardous chemicals.
Question 3: In industrial hygiene, the term 'action level' under OSHA standards typically represents:
- One-half the PEL, triggering additional monitoring and medical surveillance (Correct answer)
- The PEL itself, requiring immediate corrective action
- The IDLH concentration, requiring evacuation
- The STEL averaged over 15 minutes
Correct answer: One-half the PEL, triggering additional monitoring and medical surveillance
OSHA action levels (typically ½ PEL) trigger requirements for additional exposure monitoring, recordkeeping, and medical surveillance.
Question 4: Under RCRA, a small quantity generator (SQG) may accumulate hazardous waste on-site for up to:
- 270 days (Correct answer)
- 90 days
- 180 days
- 365 days
Correct answer: 270 days
SQGs (generating 100–1,000 kg/month) are allowed up to 270 days of on-site accumulation under 40 CFR 262.
Question 5: A thermal burn patient has burns covering the entire front torso and both arms. Using the Rule of Nines, what percentage of body surface area is affected?
- 36% (Correct answer)
- 27%
- 45%
- 18%
Correct answer: 36%
Front torso = 18%, each arm = 9% (×2 = 18%), totaling 36% BSA per the Rule of Nines.
Question 6: Which toxicological principle states that 'the dose makes the poison'?
- Paracelsus's principle (Correct answer)
- Dose-response relationship
- Threshold limit concept
- Haber's Rule
Correct answer: Paracelsus's principle
Paracelsus articulated that all substances are toxic at sufficient doses, encapsulated as 'the dose makes the poison.'
Question 7: A facility must submit an RMP (Risk Management Plan) when it has a regulated substance above the threshold quantity. RMP is required under which law?
- Clean Air Act Section 112(r) (Correct answer)
- EPCRA Section 302
- CERCLA Section 103
- TSCA Section 8
Correct answer: Clean Air Act Section 112(r)
CAA Section 112(r) established the Risk Management Program (40 CFR Part 68) requiring RMP submissions for facilities with regulated substances above thresholds.
CHMM Health and Safety Management 3
A HAZWOPER site worker who has not worked at a hazardous waste site for 12 months must complete: