Page 1 of 125
Texas CDL Hazmat (H) Endorsement EXAM QUESTIONS AND
CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS YEAR –
JUST RELEASED
Texas CDL Hazmat (H) Endorsement Exam Prep
10-Line Exam Coverage in Points Form
1. TSA Background Check (Bottleneck) — Must complete fingerprinting at IdentoGO
center; wait 2-4 weeks for federal clearance before DPS will let you take the knowledge
test
2. Table 1 vs Table 2 Placarding Rule — Table 1 materials require placards at ANY amount
(even 1 lb): Explosives 1.1/1.2/1.3, Poison Gas 2.3, Dangerous When Wet 4.3, Organic
Peroxide 5.2, Radioactive Yellow III
3. Table 2 Placarding Rule — Materials require placards only at 1,001 lbs or more
aggregate: Flammable Gas 2.1, Flammable Liquid 3 (gasoline, diesel, crude oil), Oxidizer
5.1, Corrosive 8 (battery acid)
4. Shipping Papers (Unattended Vehicle) — When leaving vehicle unattended, shipping
papers MUST be on driver's seat or in driver's door pouch — NEVER in glove box or
trailer
5. Texas Oil Field Rules — Crude oil = Class 3 Flammable Liquid; must ground/bond tank
before loading/unloading to prevent static ignition; no smoking within 25 feet of loading
operation
6. Test Format — 30 multiple-choice questions; 80% passing score (24 correct);
administered at Texas DPS driver license offices; no time limit
7. ELDT Requirement — First-time applicants must complete Entry-Level Driver Training
(HazMat portion) from FMCSA-registered provider before taking knowledge test
8. Tanker (N) + HazMat (H) = "X" Endorsement — Hauling crude in cargo tank requires
BOTH endorsements; most Texas oil field jobs require this combination
9. HME Fee & Renewal — TSA fee: $85.25 (new/renewing) or $41 with valid TWIC; HME
must be renewed with each CDL renewal; TSA background check required at each
renewal
10. Hazard Classes to Know — Class 1 Explosives, Class 2 Gases, Class 3 Flammable Liquids,
Class 4 Flammable Solids, Class 5 Oxidizers, Class 6 Toxic, Class 7 Radioactive, Class 8
Corrosives, Class 9 Miscellaneous
MCQs with Rationales
, Page 2 of 125
1. You are hauling 800 pounds of Division 2.3 Poison Gas. Are placards required?
A) No, because 800 lbs is under 1,001 lbs
B) Yes, because Poison Gas is a Table 1 material
C) Only if crossing state lines
D) Only if the vehicle is a tanker
Correct Answer: B
Rationale: Poison Gas (Division 2.3) is a Table 1 material. Table 1 requires placards at ANY
quantity, even 1 pound . This is a common trap question — don't apply the 1,001-pound rule to
Table 1 materials.
2. You are hauling 1,200 pounds of crude oil (Class 3 Flammable Liquid) from a Permian Basin
well site. Do you need placards?
A) No, crude oil is exempt from placard rules
B) Yes, Class 3 is Table 2 and 1,200 lbs exceeds 1,001 lbs
C) Only if driving on interstate highways
D) Only if the load exceeds 5,000 lbs
Correct Answer: B
Rationale: Crude oil is Class 3 Flammable Liquid, a Table 2 material. Table 2 requires placards at
1,001 lbs or more aggregate. At 1,200 lbs, you are over the threshold .
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3. Where must shipping papers be located when you leave the vehicle unattended?
A) In the glove box
B) On the driver's seat or in the driver's door pouch
C) In the trailer with the cargo
D) Under the driver's seat
Correct Answer: B
Rationale: Emergency responders must find shipping papers instantly if you are unconscious or
away from the truck. The driver's seat or door pouch are the ONLY acceptable locations .
4. What must you do before loading crude oil into a cargo tank to prevent static electricity
ignition?
A) Turn off the engine
B) Ground and bond the tank
C) Place warning cones around the vehicle
D) Check tire pressure
Correct Answer: B
Rationale: Grounding and bonding the tank before loading or unloading prevents static
electricity ignition — a critical safety step for flammable liquids .
, Page 4 of 125
5. What is the minimum age requirement for obtaining a Hazmat endorsement?
A) 18 years old
B) 21 years old
C) 25 years old
D) No age requirement
Correct Answer: B
Rationale: To apply for an H endorsement on your CDL, you must be at least 21 years of age .
This is a federal requirement under 49 CFR regulations.
6. The Texas CDL Hazmat knowledge test consists of how many questions?
A) 20 questions
B) 25 questions
C) 30 questions
D) 50 questions
Correct Answer: C
Rationale: The Texas CDL Hazardous Materials Knowledge Test consists of 30 multiple-choice
questions . Some states vary, but Texas uses the 30-question format.
7. What is the passing score for the Texas CDL Hazmat endorsement test?
A) 70% (21 correct)
Texas CDL Hazmat (H) Endorsement EXAM QUESTIONS AND
CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS YEAR –
JUST RELEASED
Texas CDL Hazmat (H) Endorsement Exam Prep
10-Line Exam Coverage in Points Form
1. TSA Background Check (Bottleneck) — Must complete fingerprinting at IdentoGO
center; wait 2-4 weeks for federal clearance before DPS will let you take the knowledge
test
2. Table 1 vs Table 2 Placarding Rule — Table 1 materials require placards at ANY amount
(even 1 lb): Explosives 1.1/1.2/1.3, Poison Gas 2.3, Dangerous When Wet 4.3, Organic
Peroxide 5.2, Radioactive Yellow III
3. Table 2 Placarding Rule — Materials require placards only at 1,001 lbs or more
aggregate: Flammable Gas 2.1, Flammable Liquid 3 (gasoline, diesel, crude oil), Oxidizer
5.1, Corrosive 8 (battery acid)
4. Shipping Papers (Unattended Vehicle) — When leaving vehicle unattended, shipping
papers MUST be on driver's seat or in driver's door pouch — NEVER in glove box or
trailer
5. Texas Oil Field Rules — Crude oil = Class 3 Flammable Liquid; must ground/bond tank
before loading/unloading to prevent static ignition; no smoking within 25 feet of loading
operation
6. Test Format — 30 multiple-choice questions; 80% passing score (24 correct);
administered at Texas DPS driver license offices; no time limit
7. ELDT Requirement — First-time applicants must complete Entry-Level Driver Training
(HazMat portion) from FMCSA-registered provider before taking knowledge test
8. Tanker (N) + HazMat (H) = "X" Endorsement — Hauling crude in cargo tank requires
BOTH endorsements; most Texas oil field jobs require this combination
9. HME Fee & Renewal — TSA fee: $85.25 (new/renewing) or $41 with valid TWIC; HME
must be renewed with each CDL renewal; TSA background check required at each
renewal
10. Hazard Classes to Know — Class 1 Explosives, Class 2 Gases, Class 3 Flammable Liquids,
Class 4 Flammable Solids, Class 5 Oxidizers, Class 6 Toxic, Class 7 Radioactive, Class 8
Corrosives, Class 9 Miscellaneous
MCQs with Rationales
, Page 2 of 125
1. You are hauling 800 pounds of Division 2.3 Poison Gas. Are placards required?
A) No, because 800 lbs is under 1,001 lbs
B) Yes, because Poison Gas is a Table 1 material
C) Only if crossing state lines
D) Only if the vehicle is a tanker
Correct Answer: B
Rationale: Poison Gas (Division 2.3) is a Table 1 material. Table 1 requires placards at ANY
quantity, even 1 pound . This is a common trap question — don't apply the 1,001-pound rule to
Table 1 materials.
2. You are hauling 1,200 pounds of crude oil (Class 3 Flammable Liquid) from a Permian Basin
well site. Do you need placards?
A) No, crude oil is exempt from placard rules
B) Yes, Class 3 is Table 2 and 1,200 lbs exceeds 1,001 lbs
C) Only if driving on interstate highways
D) Only if the load exceeds 5,000 lbs
Correct Answer: B
Rationale: Crude oil is Class 3 Flammable Liquid, a Table 2 material. Table 2 requires placards at
1,001 lbs or more aggregate. At 1,200 lbs, you are over the threshold .
, Page 3 of 125
3. Where must shipping papers be located when you leave the vehicle unattended?
A) In the glove box
B) On the driver's seat or in the driver's door pouch
C) In the trailer with the cargo
D) Under the driver's seat
Correct Answer: B
Rationale: Emergency responders must find shipping papers instantly if you are unconscious or
away from the truck. The driver's seat or door pouch are the ONLY acceptable locations .
4. What must you do before loading crude oil into a cargo tank to prevent static electricity
ignition?
A) Turn off the engine
B) Ground and bond the tank
C) Place warning cones around the vehicle
D) Check tire pressure
Correct Answer: B
Rationale: Grounding and bonding the tank before loading or unloading prevents static
electricity ignition — a critical safety step for flammable liquids .
, Page 4 of 125
5. What is the minimum age requirement for obtaining a Hazmat endorsement?
A) 18 years old
B) 21 years old
C) 25 years old
D) No age requirement
Correct Answer: B
Rationale: To apply for an H endorsement on your CDL, you must be at least 21 years of age .
This is a federal requirement under 49 CFR regulations.
6. The Texas CDL Hazmat knowledge test consists of how many questions?
A) 20 questions
B) 25 questions
C) 30 questions
D) 50 questions
Correct Answer: C
Rationale: The Texas CDL Hazardous Materials Knowledge Test consists of 30 multiple-choice
questions . Some states vary, but Texas uses the 30-question format.
7. What is the passing score for the Texas CDL Hazmat endorsement test?
A) 70% (21 correct)
