HAZWOPER 40 - Final Exam (QUESTIONS WITH 100%
CORRECT ANSWERS) () (Verified by Experts)
HAZWOPER 40-HOUR
FINAL EXAM PRACTICE QUESTIONS
QUESTIONS 1–10 (LONG • MOST TESTED • HIGH DIFFICULTY)
QUESTION 1 — OSHA Scope & Coverage (VERY HIGHLY TESTED)
Which situation REQUIRES workers to be trained under OSHA HAZWOPER 29 CFR 1910.120?
A. Office employees handling cleaning supplies
B. Maintenance staff exposed to small quantities of solvents
C. Workers involved in cleanup at an uncontrolled hazardous waste site
D. Laboratory personnel handling chemicals under a chemical hygiene plan
✅ Correct Answer: C
Explanation:
HAZWOPER applies to uncontrolled hazardous waste sites, emergency response operations,
and RCRA-regulated treatment, storage, and disposal facilities (TSDFs).
QUESTION 2 — Site Control Zones (EXAM FAVORITE)
At a hazardous waste site, where is the highest potential for exposure to hazardous
substances?
A. Support Zone
B. Contamination Reduction Zone
C. Exclusion Zone
D. Command Post
✅ Correct Answer: C
,Explanation:
The Exclusion Zone (Hot Zone) is where hazardous substances are present and exposure risk is
highest.
QUESTION 3 — Training Levels (VERY COMMON TRAP)
A worker entering the exclusion zone to perform limited tasks under supervision must have a
minimum of:
A. 24 hours of HAZWOPER training
B. 40 hours of HAZWOPER training
C. 8 hours of emergency response training
D. No training if supervised
✅ Correct Answer: B
Explanation:
Anyone entering the exclusion zone must have 40-hour HAZWOPER training plus 3 days of
supervised field experience.
QUESTION 4 — PPE Selection (HIGH DIFFICULTY)
Which factor is MOST critical when selecting personal protective equipment (PPE) at a
hazardous waste site?
A. Worker comfort
B. Cost of equipment
C. Level of contamination and exposure route
D. Availability of PPE
✅ Correct Answer: C
Explanation:
PPE selection is based on hazard identification, exposure routes, and concentration levels, not
comfort or cost.
QUESTION 5 — Respiratory Protection (VERY TESTED)
When the concentration of airborne contaminants is unknown, which respiratory protection is
REQUIRED?
, A. Half-mask air-purifying respirator
B. Full-face air-purifying respirator
C. Supplied-air respirator (SAR) or SCBA
D. Dust mask
✅ Correct Answer: C
Explanation:
Unknown concentrations require positive-pressure SCBA or SAR for maximum protection.
QUESTION 6 — Decontamination Procedures (OSHA FAVORITE)
The PRIMARY purpose of decontamination is to:
A. Clean PPE for reuse
B. Reduce exposure and prevent the spread of contaminants
C. Dispose of hazardous materials
D. Increase worker efficiency
✅ Correct Answer: B
Explanation:
Decontamination prevents cross-contamination, protecting workers, equipment, and the
public.
QUESTION 7 — Medical Surveillance (VERY TESTED)
Which workers must be included in a medical surveillance program?
A. Office staff near the site
B. Workers exposed above permissible exposure limits
C. Visitors to the site
D. Supervisors only
✅ Correct Answer: B
Explanation:
Medical surveillance is required for workers exposed above PELs, wearing respirators for 30+
days/year, or involved in emergency response.
QUESTION 8 — Emergency Response Actions (HIGH DIFFICULTY)
During an emergency release, what is the FIRST priority?
CORRECT ANSWERS) () (Verified by Experts)
HAZWOPER 40-HOUR
FINAL EXAM PRACTICE QUESTIONS
QUESTIONS 1–10 (LONG • MOST TESTED • HIGH DIFFICULTY)
QUESTION 1 — OSHA Scope & Coverage (VERY HIGHLY TESTED)
Which situation REQUIRES workers to be trained under OSHA HAZWOPER 29 CFR 1910.120?
A. Office employees handling cleaning supplies
B. Maintenance staff exposed to small quantities of solvents
C. Workers involved in cleanup at an uncontrolled hazardous waste site
D. Laboratory personnel handling chemicals under a chemical hygiene plan
✅ Correct Answer: C
Explanation:
HAZWOPER applies to uncontrolled hazardous waste sites, emergency response operations,
and RCRA-regulated treatment, storage, and disposal facilities (TSDFs).
QUESTION 2 — Site Control Zones (EXAM FAVORITE)
At a hazardous waste site, where is the highest potential for exposure to hazardous
substances?
A. Support Zone
B. Contamination Reduction Zone
C. Exclusion Zone
D. Command Post
✅ Correct Answer: C
,Explanation:
The Exclusion Zone (Hot Zone) is where hazardous substances are present and exposure risk is
highest.
QUESTION 3 — Training Levels (VERY COMMON TRAP)
A worker entering the exclusion zone to perform limited tasks under supervision must have a
minimum of:
A. 24 hours of HAZWOPER training
B. 40 hours of HAZWOPER training
C. 8 hours of emergency response training
D. No training if supervised
✅ Correct Answer: B
Explanation:
Anyone entering the exclusion zone must have 40-hour HAZWOPER training plus 3 days of
supervised field experience.
QUESTION 4 — PPE Selection (HIGH DIFFICULTY)
Which factor is MOST critical when selecting personal protective equipment (PPE) at a
hazardous waste site?
A. Worker comfort
B. Cost of equipment
C. Level of contamination and exposure route
D. Availability of PPE
✅ Correct Answer: C
Explanation:
PPE selection is based on hazard identification, exposure routes, and concentration levels, not
comfort or cost.
QUESTION 5 — Respiratory Protection (VERY TESTED)
When the concentration of airborne contaminants is unknown, which respiratory protection is
REQUIRED?
, A. Half-mask air-purifying respirator
B. Full-face air-purifying respirator
C. Supplied-air respirator (SAR) or SCBA
D. Dust mask
✅ Correct Answer: C
Explanation:
Unknown concentrations require positive-pressure SCBA or SAR for maximum protection.
QUESTION 6 — Decontamination Procedures (OSHA FAVORITE)
The PRIMARY purpose of decontamination is to:
A. Clean PPE for reuse
B. Reduce exposure and prevent the spread of contaminants
C. Dispose of hazardous materials
D. Increase worker efficiency
✅ Correct Answer: B
Explanation:
Decontamination prevents cross-contamination, protecting workers, equipment, and the
public.
QUESTION 7 — Medical Surveillance (VERY TESTED)
Which workers must be included in a medical surveillance program?
A. Office staff near the site
B. Workers exposed above permissible exposure limits
C. Visitors to the site
D. Supervisors only
✅ Correct Answer: B
Explanation:
Medical surveillance is required for workers exposed above PELs, wearing respirators for 30+
days/year, or involved in emergency response.
QUESTION 8 — Emergency Response Actions (HIGH DIFFICULTY)
During an emergency release, what is the FIRST priority?
