OSHA HAZWOPER Supervisor
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
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Rationale 2026 Q&A| Instant Download
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1. Which OSHA standard primarily governs hazardous waste operations
and emergency response activities?
A 29 CFR 1910.120
B 29 CFR 1926.501
C 29 CFR 1910.147
D 29 CFR 1910.134
Correct Answer: A
The HAZWOPER standard is codified under 29 CFR 1910.120, which
establishes requirements for training, PPE, medical surveillance, and
site safety procedures for hazardous waste operations and
emergency response.
2. What is the primary responsibility of a HAZWOPER supervisor during
an emergency response?
A Perform laboratory analysis of contaminants
, B Direct and oversee safe response operations and ensure worker
safety
C Conduct legal prosecution of violators
D Replace emergency medical personnel on scene
Correct Answer: B
The supervisor is responsible for managing operations in the field,
ensuring worker safety, implementing the site safety plan, and
coordinating response activities.
3. Which level of PPE provides the highest level of respiratory and skin
protection?
A Level D
B Level C
C Level B
D Level A
Correct Answer: D
Level A PPE provides fully encapsulating vapor-protective suits and
SCBA, offering the highest protection against unknown or highly
hazardous substances.
4. What does a Safety Data Sheet (SDS) primarily provide?
A Payroll documentation for hazardous sites
B Information on chemical hazards and protective measures
C Emergency dispatch routing instructions
D Legal sentencing guidelines for violations
Correct Answer: B
An SDS provides critical information about chemical hazards, safe
handling, storage, and emergency response procedures.
5. Which monitoring device is most appropriate for detecting oxygen
deficiency in a confined space?
A pH meter
, B Oxygen meter
C Geiger counter
D Turbidimeter
Correct Answer: B
An oxygen meter measures oxygen concentration and is essential for
evaluating safe entry conditions in confined spaces.
6. What is the primary purpose of a site safety and health plan?
A To calculate insurance premiums
B To outline procedures for safe hazardous waste operations
C To document employee payroll schedules
D To replace OSHA regulations
Correct Answer: B
The plan establishes procedures to protect workers by identifying
hazards, PPE requirements, and emergency response actions.
7. Which respiratory protection device is required for oxygen-deficient
atmospheres?
A Air-purifying respirator
B Dust mask
C Supplied-air respirator or SCBA
D Surgical mask
Correct Answer: C
Only supplied-air respirators or SCBA systems provide breathable air
in oxygen-deficient environments.
8. Which agency enforces HAZWOPER regulations in the United States?
A EPA exclusively
B CDC
C OSHA
D FEMA
Correct Answer: C
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus
Rationale 2026 Q&A| Instant Download
1. Which OSHA standard primarily governs hazardous waste operations
and emergency response activities?
A 29 CFR 1910.120
B 29 CFR 1926.501
C 29 CFR 1910.147
D 29 CFR 1910.134
Correct Answer: A
The HAZWOPER standard is codified under 29 CFR 1910.120, which
establishes requirements for training, PPE, medical surveillance, and
site safety procedures for hazardous waste operations and
emergency response.
2. What is the primary responsibility of a HAZWOPER supervisor during
an emergency response?
A Perform laboratory analysis of contaminants
, B Direct and oversee safe response operations and ensure worker
safety
C Conduct legal prosecution of violators
D Replace emergency medical personnel on scene
Correct Answer: B
The supervisor is responsible for managing operations in the field,
ensuring worker safety, implementing the site safety plan, and
coordinating response activities.
3. Which level of PPE provides the highest level of respiratory and skin
protection?
A Level D
B Level C
C Level B
D Level A
Correct Answer: D
Level A PPE provides fully encapsulating vapor-protective suits and
SCBA, offering the highest protection against unknown or highly
hazardous substances.
4. What does a Safety Data Sheet (SDS) primarily provide?
A Payroll documentation for hazardous sites
B Information on chemical hazards and protective measures
C Emergency dispatch routing instructions
D Legal sentencing guidelines for violations
Correct Answer: B
An SDS provides critical information about chemical hazards, safe
handling, storage, and emergency response procedures.
5. Which monitoring device is most appropriate for detecting oxygen
deficiency in a confined space?
A pH meter
, B Oxygen meter
C Geiger counter
D Turbidimeter
Correct Answer: B
An oxygen meter measures oxygen concentration and is essential for
evaluating safe entry conditions in confined spaces.
6. What is the primary purpose of a site safety and health plan?
A To calculate insurance premiums
B To outline procedures for safe hazardous waste operations
C To document employee payroll schedules
D To replace OSHA regulations
Correct Answer: B
The plan establishes procedures to protect workers by identifying
hazards, PPE requirements, and emergency response actions.
7. Which respiratory protection device is required for oxygen-deficient
atmospheres?
A Air-purifying respirator
B Dust mask
C Supplied-air respirator or SCBA
D Surgical mask
Correct Answer: C
Only supplied-air respirators or SCBA systems provide breathable air
in oxygen-deficient environments.
8. Which agency enforces HAZWOPER regulations in the United States?
A EPA exclusively
B CDC
C OSHA
D FEMA
Correct Answer: C
