100+ Free ADR Core Module Practice Questions

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2026 Statistics

Key Facts: ADR Core Module Exam

9 Classes

ADR classifies dangerous goods into 9 hazard classes, from explosives (Class 1) to miscellaneous (Class 9)

UNECE ADR Part 2

5 Years

The ADR driver training certificate is valid for 5 years before requiring renewal via refresher course and exam

ADR Chapter 8.2

70%

Typical pass mark for the ADR core module exam is 70% correct answers

ADR Chapter 8.2 / national competent authorities

60 Minutes

The core module written examination has a time limit of 60 minutes

ADR Chapter 8.2 examination requirements

50+ States

The ADR agreement has over 50 contracting parties and the certificate is recognized across all of them

UNECE ADR contracting parties list

100

Free original practice questions covering all ADR core module syllabus topics

OpenExamPrep

The ADR core module exam is a 60-minute MCQ test (typically 30 questions, 70% pass mark) required for all drivers carrying dangerous goods by road across ADR contracting states. It covers 9 hazard classes, UN numbers, labelling, transport documents, vehicle equipment, mixed loading rules, tunnel codes, and emergency procedures. The training certificate is valid for 5 years. This 100-question practice bank covers all core ADR syllabus topics.

Sample ADR Core Module Practice Questions

Try these sample questions to test your ADR Core Module exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What does the abbreviation "ADR" officially stand for in the context of international dangerous goods transport?

A.Agreement concerning the International Carriage of Dangerous Goods by Road

B.Accident and Disaster Response protocol for Roadways

C.Association for Dangerous Goods Regulations

D.Automotive Directive for Hazardous Cargo and Residues

Explanation: ADR stands for the "Agreement concerning the International Carriage of Dangerous Goods by Road" (from the French: Accord relatif au transport international des marchandises dangereuses par route). This agreement governs the packaging, securing, and labelling of hazardous materials transported by road across Europe and participating contracting states.

2What is the standard validity period of an ADR driver training certificate?

A.5 years

B.3 years

C.2 years

D.10 years

Explanation: Under Chapter 8.2 of the ADR, a driver training certificate is valid for five years. To extend the validity of the certificate, the driver must pass a refresher training course and an examination within the year before the certificate's expiry date.

3Which ADR hazard class covers flammable liquids like gasoline or diesel?

A.Class 3

B.Class 2

C.Class 4.1

D.Class 8

Explanation: Class 3 specifically covers flammable liquids, which are liquids having a flash-point of not more than 60°C. Diesel fuel, gas oil, and heating oil (light) are also classified under Class 3 even if their flash-point is above 60°C (up to 100°C).

4Which ADR hazard class covers corrosive substances that cause damage to skin or materials?

A.Class 8

B.Class 6.1

C.Class 9

D.Class 5.1

Explanation: Class 8 covers corrosive substances. These are substances which, by chemical action, attack epithelial tissue of skin or mucous membranes, or cause leakage or destruction of other goods or vehicles if spilled.

5What is the main hazard associated with Class 2 substances in the ADR classification system?

A.Gases

B.Explosives

C.Radioactive materials

D.Oxidizing agents

Explanation: Class 2 covers gases, which includes pure gases, mixtures of gases, and articles containing such substances. Gases are further categorized as compressed, liquefied, refrigerated liquefied, dissolved, adsorbed, aerosol dispensers, and chemicals under pressure.

6Which packing group is assigned to dangerous substances presenting the highest degree of danger?

A.Packing Group I

B.Packing Group II

C.Packing Group III

D.Packing Group IV

Explanation: ADR uses packing groups to indicate the degree of danger of a substance. Packing Group I represents high danger, Packing Group II represents medium danger, and Packing Group III represents low danger.

7Which ADR hazard class covers toxic substances that can cause harm or death if inhaled, swallowed, or absorbed?

A.Class 6.1

B.Class 6.2

C.Class 8

D.Class 9

Explanation: Class 6.1 covers toxic substances, which are known or assumed to cause death, serious injury, or harm to human health if swallowed, inhaled, or placed in contact with the skin.

8In which part of the ADR regulations can a driver find the numerical list of all UN numbers and their specific transport requirements?

A.Table A of Chapter 3.2

B.Annex B, Chapter 8.2

C.Table B of Chapter 3.2

D.Annex A, Chapter 1.1

Explanation: Table A of Chapter 3.2 (Dangerous Goods List) is the central reference table in ADR. It contains over 3,000 UN numbers listed in numerical order, providing details on class, packing group, labels, special provisions, packaging instructions, and tunnel codes.

9What does "Packing Group II" signify in the ADR dangerous goods classification?

A.Substances presenting medium danger

B.Substances presenting high danger

C.Substances presenting low danger

D.Substances presenting no danger but requiring ventilation

Explanation: Packing Group II is assigned to substances presenting medium danger. Package testing specifications for Packing Group II must meet a medium level of drop and leak tightness compared to Packing Group I.

10Which ADR hazard class includes substances which, in contact with water, emit flammable gases?

A.Class 4.3

B.Class 4.2

C.Class 4.1

D.Class 5.2

Explanation: Class 4.3 covers substances which, in contact with water, emit flammable gases. These substances are highly dangerous because contact with moisture or water can produce explosive gas mixtures (such as hydrogen or acetylene).

About the ADR Core Module Exam

The ADR Core Module examination is a written multiple-choice test required of all drivers carrying dangerous goods by road in countries that are contracting parties to the European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR). Under Chapter 8.2 of the ADR, every driver transporting hazardous goods above the exemption thresholds in 1.1.3.6 must hold a valid ADR driver training certificate. The core module covers general dangerous goods regulations including classification of hazardous substances into 9 classes, UN numbering, hazard labels and orange-plate marking, transport documentation, vehicle equipment requirements, loading and unloading procedures, emergency actions, tunnel restriction codes, and security awareness for high-consequence dangerous goods. The certificate is valid for 5 years and must be renewed through a refresher course and re-examination.

Questions

30 scored questions

Time Limit

60 minutes

Passing Score

70% (typically 20 out of 30 correct answers; exact threshold set by each national competent authority)

Exam Fee

Varies by country and provider — typically €200–€500 for the full initial training course including the exam. (National competent authorities in ADR contracting states (e.g. DVSA in the UK, DGITM in France, BAM in Germany))

ADR Core Module Exam Content Outline

25%

General Requirements and Classification

ADR scope, exemptions, dangerous goods classes 1–9 (explosives, gases, flammable liquids, flammable solids, oxidizers, toxic/infectious, radioactive, corrosives, miscellaneous), UN numbers, proper shipping names, packing groups I–III, and classification criteria.

20%

Labelling, Marking and Placarding

Hazard labels (diamond shapes, colors, symbols), package marking requirements, orange-plate display (Kemler hazard identification numbers and UN substance numbers), placarding of vehicles and containers, limited and excepted quantity marks, and environmentally hazardous substance marking.

15%

Transport Documentation

Dangerous goods transport document (shipper's declaration), container/vehicle packing certificate, Instructions in Writing (emergency action cards), driver training certificate, and other required documentation for road transport.

15%

Vehicle Equipment and Construction

Mandatory vehicle equipment (fire extinguishers by transport unit size, warning triangles, high-vis vests, eye wash, drain seal, shovel), vehicle approval marking, electrical safety requirements, and basic tank vehicle construction requirements.

10%

Loading, Unloading and Handling

Mixed loading prohibitions (table in ADR 7.5.2), supervision requirements, smoking and naked flame restrictions, engine running during loading/unloading, cargo securing obligations, and cleaning/decontamination after unloading.

15%

Emergency Procedures and Safety

Actions in case of accident or emergency, fire extinguisher use and types (powder for most classes, no water on Class 4.3), first aid procedures, PPE use, reporting obligations, tunnel restriction categories (A–E), security awareness plan obligations, and high-consequence dangerous goods.

How to Pass the ADR Core Module Exam

What You Need to Know

Passing score: 70% (typically 20 out of 30 correct answers; exact threshold set by each national competent authority)
Exam length: 30 questions
Time limit: 60 minutes
Exam fee: Varies by country and provider — typically €200–€500 for the full initial training course including the exam.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ADR Core Module Study Tips from Top Performers

1Learn the 9 ADR hazard classes, their division numbers, and the corresponding diamond hazard label colors and symbols — these are tested heavily.

2Understand orange-plate numbering: the top number is the Kemler hazard identification number, the bottom number is the UN substance number. Know common prefixes (2=gas, 3=flammable liquid, X=reacts dangerously with water).

3Memorize the mandatory vehicle equipment list: fire extinguishers (capacity depends on vehicle GVW), wheel chocks, warning triangles, high-vis vest, eye wash, drain seal, and shovel.

4Study the mixed loading prohibition table (ADR 7.5.2) — know which classes cannot be loaded together on the same vehicle.

5Review the tunnel restriction categories A through E and know which categories restrict which classes of dangerous goods.

6Practice reading transport documents: be able to identify the UN number, proper shipping name, class, packing group, and quantity from a sample document.

Frequently Asked Questions

What is the ADR core module examination?

The ADR core module exam is a written multiple-choice test that all drivers must pass to obtain an ADR driver training certificate. It covers general dangerous goods regulations including classification, labelling, documentation, vehicle equipment, and emergency procedures. It is required under Chapter 8.2 of the ADR for drivers carrying hazardous goods above the exemption limits.

How many questions are on the ADR core exam?

The core module exam typically consists of 25 to 30 multiple-choice questions, depending on the ADR contracting state. The most common format is 30 questions with a 60-minute time limit and a 70% pass mark.

How long is the ADR training certificate valid?

The ADR driver training certificate is valid for 5 years from the date of issue. To renew it, drivers must complete an approved refresher training course and pass a new examination before the certificate expires.

Do I need separate certificates for tanks or explosives?

Yes. The core module covers general dangerous goods transport. If you also need to carry goods in tanks, or transport Class 1 (explosives) or Class 7 (radioactive) materials, you must take additional specialization modules and pass their separate examinations.

Is the ADR certificate recognized across Europe?

Yes. The ADR driver training certificate issued by one contracting state is recognized by all other ADR contracting states. The ADR agreement currently has over 50 contracting parties across Europe and beyond.

What are the main dangerous goods classes covered?

The ADR classifies dangerous goods into 9 classes: Class 1 Explosives, Class 2 Gases, Class 3 Flammable Liquids, Class 4 Flammable Solids, Class 5 Oxidizers and Organic Peroxides, Class 6 Toxic and Infectious Substances, Class 7 Radioactive Material, Class 8 Corrosives, and Class 9 Miscellaneous Dangerous Substances.