Page 1 of 93
California Firefighter Hazardous Materials Operations Exam
ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS YEAR
SUMMARIZED COVERAGE
• Identify HazMat using placards, containers, ERG
• Understand hazard classes and chemical behavior
• Recognize exposure risks
• Use defensive strategies only
• Apply ICS, zones, and safety protocols
• Perform basic decontamination
• Use PPE appropriately
PART 3: 50 MCQs (BATCH 1)
✔ Scenario-based
✔ ≥15 words
✔ Fire exam style
✔ With answers + rationales
, Page 2 of 93
MCQs 1–50
1.
Upon arrival at a highway tanker rollover, you observe a placard with a flame symbol and the number 3.
What hazard class does this indicate?
A. Flammable gas
B. Flammable liquid
C. Oxidizer
D. Corrosive
Answer: B
Rationale: Class 3 represents flammable liquids such as gasoline.
2.
A firefighter smells a strong odor near a leaking container and attempts to identify the substance. What
safety principle is being violated?
A. Use of PPE
B. Avoid using sense of smell
C. ICS protocol
D. ERG usage
, Page 3 of 93
Answer: B
Rationale: Smell should never be used due to inhalation risk.
3.
At a HazMat scene, the area closest to the release where contamination is present is called what?
A. Cold zone
B. Warm zone
C. Hot zone
D. Safe zone
Answer: C
Rationale: The hot zone contains the highest contamination risk.
4.
A responder uses the ERG to determine initial isolation distance for a spill. What is the primary purpose
of this guide?
A. Provide medical treatment
B. Identify hazards and initial response actions
C. Replace SDS
D. Provide legal regulations
Answer: B
, Page 4 of 93
5.
Which route of exposure is considered the most dangerous in most hazardous materials incidents?
A. Ingestion
B. Absorption
C. Inhalation
D. Injection
Answer: C
6.
A firefighter wearing structural PPE without SCBA enters a contaminated area. What level of PPE is this?
A. Level A
B. Level B
C. Level C
D. Level D
Answer: D
7.
A container labeled with a skull and crossbones indicates what hazard?
California Firefighter Hazardous Materials Operations Exam
ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS YEAR
SUMMARIZED COVERAGE
• Identify HazMat using placards, containers, ERG
• Understand hazard classes and chemical behavior
• Recognize exposure risks
• Use defensive strategies only
• Apply ICS, zones, and safety protocols
• Perform basic decontamination
• Use PPE appropriately
PART 3: 50 MCQs (BATCH 1)
✔ Scenario-based
✔ ≥15 words
✔ Fire exam style
✔ With answers + rationales
, Page 2 of 93
MCQs 1–50
1.
Upon arrival at a highway tanker rollover, you observe a placard with a flame symbol and the number 3.
What hazard class does this indicate?
A. Flammable gas
B. Flammable liquid
C. Oxidizer
D. Corrosive
Answer: B
Rationale: Class 3 represents flammable liquids such as gasoline.
2.
A firefighter smells a strong odor near a leaking container and attempts to identify the substance. What
safety principle is being violated?
A. Use of PPE
B. Avoid using sense of smell
C. ICS protocol
D. ERG usage
, Page 3 of 93
Answer: B
Rationale: Smell should never be used due to inhalation risk.
3.
At a HazMat scene, the area closest to the release where contamination is present is called what?
A. Cold zone
B. Warm zone
C. Hot zone
D. Safe zone
Answer: C
Rationale: The hot zone contains the highest contamination risk.
4.
A responder uses the ERG to determine initial isolation distance for a spill. What is the primary purpose
of this guide?
A. Provide medical treatment
B. Identify hazards and initial response actions
C. Replace SDS
D. Provide legal regulations
Answer: B
, Page 4 of 93
5.
Which route of exposure is considered the most dangerous in most hazardous materials incidents?
A. Ingestion
B. Absorption
C. Inhalation
D. Injection
Answer: C
6.
A firefighter wearing structural PPE without SCBA enters a contaminated area. What level of PPE is this?
A. Level A
B. Level B
C. Level C
D. Level D
Answer: D
7.
A container labeled with a skull and crossbones indicates what hazard?
