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Texas CDL Hazmat Endorsement Exam QUESTIONS
AND DETAILED SOLUTIONS JUST RELEASED
Texas CDL Hazmat Endorsement Exam – Coverage Summary & Exam-Relevant Questions
Based on the Texas Department of Public Safety (DPS) regulations and the Federal Motor Carrier Safety
Regulations (FMCSR, 49 CFR Parts 100-185) , the Hazmat (H) endorsement exam tests competency in
the safe and legal transport of hazardous materials.
Exam Coverage Summary
Domain Key Topics
Hazard Classes & Class 1 (Explosives) through Class 9 (Miscellaneous). Placard identification, divisions (e.g., 1
Divisions 1.2), compatibility groups.
Shipping Papers & Proper format (hazard class, ID number, shipping name, quantity, emergency response
Documentation telephone number). Retention (must be within reach while driving). Shipper's certification.
When placards are required (any amount of Table 1 HazMat; 1,001 lbs of Table 2). Bulk
Placarding & Marking
packaging rules. Identification numbers on placards or orange panels.
Incompatible materials (e.g., acids vs. cyanides; explosives vs. flammables). "Segregation T
Loading & Segregation
in 49 CFR 177.848. Tanker loading (spacing, percentage limits).
Emergency Response Guidebook (ERG). Reporting spills (who to call, when). Fire extinguish
Emergency Response
(UL rating 10 B:C or higher). Goggles/face shields for corrosive liquids.
TSA Requirements & Hazmat endorsement requires fingerprinting and TSA threat assessment. Security plans for
Security bulk shipments (over 3,000 gallons or 8,820 lbs). En route security.
Safe Driving & Route No parking within 300 ft of schools, churches, or hospitals. 1,000 ft restriction for explosive
Planning (Division 1.1, 1.2, 1.3). No smoking within 25 ft of vehicle.
"Inhalation Hazard" placards. Poison inhalation hazard (PIH). Radioactive materials transpo
Special Provisions
Packaging specifications (UN-certified).
Section 1: Hazard Classes & Identification (Questions 1-30)
Question 1: A driver is hauling a load of fireworks. What hazard class and division do fireworks typically
fall under?
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A) Class 1.1 (mass explosion hazard)
B) Class 1.2 (projection hazard)
C) Class 1.3 (fire hazard, minor blast/projection)
D) Class 1.4 (minor explosion hazard, limited to package)
Answer: C
Consumer fireworks are generally Class 1.3 Explosives (fire hazard with minor blast or projection).
Display fireworks and commercial explosives may be 1.1, 1.2, or 1.3 depending on their net explosive
weight.
Question 2: Which hazard class is "flammable liquid"?
A) Class 2
B) Class 3
C) Class 4
D) Class 5
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Answer: B
Class 3: Flammable liquids (flash point below 141°F). Examples include gasoline, ethanol, acetone, and
many solvents. Class 2 covers gases, Class 4 covers flammable solids, Class 5 covers oxidizers .
Question 3: A placard with a white background and black lettering indicating "INHALATION HAZARD"
would be displayed for:
A) Class 2.3 (Poison Gas)
B) Class 6.1 (Toxic Inhalation Hazard liquids)
C) Both A and B, for materials poisonous by inhalation
D) Class 8 (Corrosive)
Answer: C
Substances poisonous by inhalation, including both gases (2.3) and liquids (6.1), require the "Poison
Inhalation Hazard" placard in addition to their primary hazard placard.
Question 4: A driver is hauling a placarded load. The fire extinguisher in the power unit must have a UL
rating of at least:
A) 5 B:C
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B) 10 B:C
C) 15 B:C
D) 20 B:C
Answer: B
The power unit of a placarded vehicle must be equipped with a fire extinguisher with a UL rating of 10
B:C or higher. This is a minimum requirement for Hazmat hauling .
Question 5: A driver checks the Hazardous Materials Table (49 CFR 172.101). Column 2 contains the:
A) Hazard class or division
B) Identification (ID) number (UN/NA)
C) Packing group
D) Label codes
Answer: A
Column 2 of the Hazardous Materials Table (HMT) contains the hazard class or division (e.g., 3, 6.1, 2.1,
1.3) of the material .
Texas CDL Hazmat Endorsement Exam QUESTIONS
AND DETAILED SOLUTIONS JUST RELEASED
Texas CDL Hazmat Endorsement Exam – Coverage Summary & Exam-Relevant Questions
Based on the Texas Department of Public Safety (DPS) regulations and the Federal Motor Carrier Safety
Regulations (FMCSR, 49 CFR Parts 100-185) , the Hazmat (H) endorsement exam tests competency in
the safe and legal transport of hazardous materials.
Exam Coverage Summary
Domain Key Topics
Hazard Classes & Class 1 (Explosives) through Class 9 (Miscellaneous). Placard identification, divisions (e.g., 1
Divisions 1.2), compatibility groups.
Shipping Papers & Proper format (hazard class, ID number, shipping name, quantity, emergency response
Documentation telephone number). Retention (must be within reach while driving). Shipper's certification.
When placards are required (any amount of Table 1 HazMat; 1,001 lbs of Table 2). Bulk
Placarding & Marking
packaging rules. Identification numbers on placards or orange panels.
Incompatible materials (e.g., acids vs. cyanides; explosives vs. flammables). "Segregation T
Loading & Segregation
in 49 CFR 177.848. Tanker loading (spacing, percentage limits).
Emergency Response Guidebook (ERG). Reporting spills (who to call, when). Fire extinguish
Emergency Response
(UL rating 10 B:C or higher). Goggles/face shields for corrosive liquids.
TSA Requirements & Hazmat endorsement requires fingerprinting and TSA threat assessment. Security plans for
Security bulk shipments (over 3,000 gallons or 8,820 lbs). En route security.
Safe Driving & Route No parking within 300 ft of schools, churches, or hospitals. 1,000 ft restriction for explosive
Planning (Division 1.1, 1.2, 1.3). No smoking within 25 ft of vehicle.
"Inhalation Hazard" placards. Poison inhalation hazard (PIH). Radioactive materials transpo
Special Provisions
Packaging specifications (UN-certified).
Section 1: Hazard Classes & Identification (Questions 1-30)
Question 1: A driver is hauling a load of fireworks. What hazard class and division do fireworks typically
fall under?
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A) Class 1.1 (mass explosion hazard)
B) Class 1.2 (projection hazard)
C) Class 1.3 (fire hazard, minor blast/projection)
D) Class 1.4 (minor explosion hazard, limited to package)
Answer: C
Consumer fireworks are generally Class 1.3 Explosives (fire hazard with minor blast or projection).
Display fireworks and commercial explosives may be 1.1, 1.2, or 1.3 depending on their net explosive
weight.
Question 2: Which hazard class is "flammable liquid"?
A) Class 2
B) Class 3
C) Class 4
D) Class 5
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Answer: B
Class 3: Flammable liquids (flash point below 141°F). Examples include gasoline, ethanol, acetone, and
many solvents. Class 2 covers gases, Class 4 covers flammable solids, Class 5 covers oxidizers .
Question 3: A placard with a white background and black lettering indicating "INHALATION HAZARD"
would be displayed for:
A) Class 2.3 (Poison Gas)
B) Class 6.1 (Toxic Inhalation Hazard liquids)
C) Both A and B, for materials poisonous by inhalation
D) Class 8 (Corrosive)
Answer: C
Substances poisonous by inhalation, including both gases (2.3) and liquids (6.1), require the "Poison
Inhalation Hazard" placard in addition to their primary hazard placard.
Question 4: A driver is hauling a placarded load. The fire extinguisher in the power unit must have a UL
rating of at least:
A) 5 B:C
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B) 10 B:C
C) 15 B:C
D) 20 B:C
Answer: B
The power unit of a placarded vehicle must be equipped with a fire extinguisher with a UL rating of 10
B:C or higher. This is a minimum requirement for Hazmat hauling .
Question 5: A driver checks the Hazardous Materials Table (49 CFR 172.101). Column 2 contains the:
A) Hazard class or division
B) Identification (ID) number (UN/NA)
C) Packing group
D) Label codes
Answer: A
Column 2 of the Hazardous Materials Table (HMT) contains the hazard class or division (e.g., 3, 6.1, 2.1,
1.3) of the material .
