AK Hazardous Materials Transport
Contractor Exam Questions And Correct
Answers (Verified Answers) Plus
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1. Which of the following is classified as a hazardous material under US
DOT regulations?
A. Bottled water
B. Compressed oxygen cylinders
C. Cardboard boxes
D. Wooden pallets
Answer: B. Compressed oxygen cylinders
Rationale: Compressed gases are classified as hazardous materials because
they pose risks of explosion, fire, or asphyxiation during transport.
2. What does the term “placard” refer to in hazardous materials transport?
A. A shipping invoice
B. A sign displayed on a vehicle indicating the type of hazardous
material being transported
C. The driver’s license
D. Cargo insurance document
Answer: B. A sign displayed on a vehicle indicating the type of hazardous
material being transported
Rationale: Placards provide emergency responders and the public with
critical information about hazards present in the transport vehicle.
, 3. Which agency regulates the transport of hazardous materials in the
United States?
A. EPA
B. OSHA
C. DOT
D. FEMA
Answer: C. DOT
Rationale: The Department of Transportation (DOT) oversees the safe
transport of hazardous materials through regulations in the Hazardous
Materials Regulations (HMR).
4. What is the main purpose of a Material Safety Data Sheet (MSDS) or
Safety Data Sheet (SDS)?
A. To calculate shipping costs
B. To provide tax information
C. To provide detailed information on the hazards and safe
handling of a chemical
D. To certify driver training
Answer: C. To provide detailed information on the hazards and safe handling
of a chemical
Rationale: SDS/MSDS documents include physical, health, and
environmental hazards, as well as emergency response procedures.
5. Which class of hazardous materials includes flammable liquids?
A. Class 1
B. Class 2
C. Class 3
D. Class 4
Answer: C. Class 3
Rationale: Class 3 covers flammable liquids such as gasoline, acetone, and
alcohols.
6. When transporting hazardous materials, what does the term
“segregation” mean?
A. Assigning drivers to routes
, B. Separating hazardous materials based on their compatibility
C. Loading cargo faster
D. Keeping incompatible materials apart to prevent reactions
Answer: D. Keeping incompatible materials apart to prevent reactions
Rationale: Incompatible materials, such as acids and bases, must be
segregated to prevent chemical reactions that could cause fire, explosion, or
toxic release.
7. What is the primary responsibility of a hazardous materials driver?
A. Scheduling deliveries
B. Cleaning the vehicle
C. Ensuring the safe and compliant transport of hazardous
materials
D. Maintaining inventory
Answer: C. Ensuring the safe and compliant transport of hazardous materials
Rationale: Drivers are responsible for following DOT regulations,
placarding, secure loading, and reporting incidents.
8. Which is considered a corrosive material?
A. Diesel fuel
B. Sulfuric acid
C. Propane
D. Sand
Answer: B. Sulfuric acid
Rationale: Corrosive materials cause destruction of living tissue or metal
upon contact, such as strong acids or bases.
9. How often must hazardous materials transport vehicles undergo
inspection?
A. Once every 5 years
B. Before each trip and periodically according to regulations
C. Only when purchased new
D. Only after accidents
Contractor Exam Questions And Correct
Answers (Verified Answers) Plus
Rationale2026 Q&A| Instant Download
1. Which of the following is classified as a hazardous material under US
DOT regulations?
A. Bottled water
B. Compressed oxygen cylinders
C. Cardboard boxes
D. Wooden pallets
Answer: B. Compressed oxygen cylinders
Rationale: Compressed gases are classified as hazardous materials because
they pose risks of explosion, fire, or asphyxiation during transport.
2. What does the term “placard” refer to in hazardous materials transport?
A. A shipping invoice
B. A sign displayed on a vehicle indicating the type of hazardous
material being transported
C. The driver’s license
D. Cargo insurance document
Answer: B. A sign displayed on a vehicle indicating the type of hazardous
material being transported
Rationale: Placards provide emergency responders and the public with
critical information about hazards present in the transport vehicle.
, 3. Which agency regulates the transport of hazardous materials in the
United States?
A. EPA
B. OSHA
C. DOT
D. FEMA
Answer: C. DOT
Rationale: The Department of Transportation (DOT) oversees the safe
transport of hazardous materials through regulations in the Hazardous
Materials Regulations (HMR).
4. What is the main purpose of a Material Safety Data Sheet (MSDS) or
Safety Data Sheet (SDS)?
A. To calculate shipping costs
B. To provide tax information
C. To provide detailed information on the hazards and safe
handling of a chemical
D. To certify driver training
Answer: C. To provide detailed information on the hazards and safe handling
of a chemical
Rationale: SDS/MSDS documents include physical, health, and
environmental hazards, as well as emergency response procedures.
5. Which class of hazardous materials includes flammable liquids?
A. Class 1
B. Class 2
C. Class 3
D. Class 4
Answer: C. Class 3
Rationale: Class 3 covers flammable liquids such as gasoline, acetone, and
alcohols.
6. When transporting hazardous materials, what does the term
“segregation” mean?
A. Assigning drivers to routes
, B. Separating hazardous materials based on their compatibility
C. Loading cargo faster
D. Keeping incompatible materials apart to prevent reactions
Answer: D. Keeping incompatible materials apart to prevent reactions
Rationale: Incompatible materials, such as acids and bases, must be
segregated to prevent chemical reactions that could cause fire, explosion, or
toxic release.
7. What is the primary responsibility of a hazardous materials driver?
A. Scheduling deliveries
B. Cleaning the vehicle
C. Ensuring the safe and compliant transport of hazardous
materials
D. Maintaining inventory
Answer: C. Ensuring the safe and compliant transport of hazardous materials
Rationale: Drivers are responsible for following DOT regulations,
placarding, secure loading, and reporting incidents.
8. Which is considered a corrosive material?
A. Diesel fuel
B. Sulfuric acid
C. Propane
D. Sand
Answer: B. Sulfuric acid
Rationale: Corrosive materials cause destruction of living tissue or metal
upon contact, such as strong acids or bases.
9. How often must hazardous materials transport vehicles undergo
inspection?
A. Once every 5 years
B. Before each trip and periodically according to regulations
C. Only when purchased new
D. Only after accidents
