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Free TDG Training Certificate (Road) Practice Test

30 original questions with explanations. Pick an answer to check it instantly.

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  1. Question 1 · Training and Training Certificates (Part 6)

    Is there a government TDG exam that you must pass to get a TDG training certificate?

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    Answer: B. No; the employer issues it once satisfied you are trained

    Part 6 has no government exam. Under section 6.3(1) the employer issues the certificate when it has reasonable grounds to believe the employee is adequately trained; any test is set by the employer or training provider.

    Check it: TDGR 6.3(1)

  2. Question 2 · Training and Training Certificates (Part 6)

    For how long is a TDG training certificate for road transport valid?

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    Answer: B. 36 months from the date of issue

    Section 6.5(b) sets 36 months for road, rail and marine transport. Air certificates expire after 24 months under section 6.5(a).

    Check it: TDGR 6.5

  3. Question 3 · Training and Training Certificates (Part 6)

    Which information must a TDG training certificate contain?

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    Answer: D. Employer name and address, employee name, expiry date, aspects trained

    Section 6.3(1) requires the employer's name and business address, the employee's name, the expiry date preceded by 'Expires on' and the aspects of handling or transport for which the employee is trained.

    Check it: TDGR 6.3(1)

  4. Question 4 · Training and Training Certificates (Part 6)

    An untrained new hire must help unload a placarded trailer today. What allows this under Part 6?

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    Answer: B. Direct supervision by a trained certificate holder who is present

    Section 6.1(1)(b) lets a person work in the presence and under the direct supervision of an adequately trained certificate holder. Remote monitoring does not count.

    Check it: TDGR 6.1(1)(b)

  5. Question 5 · Classification and the Nine Classes (Part 2)

    Which class covers corrosive substances such as sulphuric acid?

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    Answer: D. Class 8

    Class 8 is Corrosives. Schedule 1 lists UN1830, sulphuric acid with more than 51% acid, as Class 8, Packing Group II.

    Check it: TDGR 2.40; Schedule 1 UN1830

  6. Question 6 · Classification and the Nine Classes (Part 2)

    Who is responsible for classifying dangerous goods before they are shipped?

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    Answer: A. The consignor

    Section 2.2(1) requires the consignor to determine the classification before allowing a carrier to take possession of the goods.

    Check it: TDGR 2.2(1)

  7. Question 7 · Classification and the Nine Classes (Part 2)

    Which packing group indicates the greatest danger?

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    Answer: B. Packing Group I

    Packing Group I represents great danger, II medium danger and III minor danger. There is no Packing Group IV.

    Check it: TDGR Part 2; Schedule 1 col. 4

  8. Question 8 · Classification and the Nine Classes (Part 2)

    A substance meets the criteria for Class 2.1 and Class 2.3. Which is its primary class?

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    Answer: A. Class 2.3

    Section 2.8(1)(b) gives Class 2.3 precedence over Class 2.1, and Class 2.1 over Class 2.2.

    Check it: TDGR 2.8(1)(b)

  9. Question 9 · Schedules, Special Provisions and Exemptions (Part 1)

    What is the capacity limit of a small means of containment?

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    Answer: B. 450 L or less

    Section 1.4 defines a small means of containment as one with a capacity of 450 L or less; anything larger is a large means of containment.

    Check it: TDGR 1.4

  10. Question 10 · Schedules, Special Provisions and Exemptions (Part 1)

    What does Schedule 3 of the TDG Regulations contain?

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    Answer: A. An alphabetical index of shipping names, with UN numbers

    Schedule 3 is the alphabetical index. Schedule 1 is the main list by UN number, and Schedule 2 holds the special provisions.

    Check it: TDGR Schedule 3

  11. Question 11 · Schedules, Special Provisions and Exemptions (Part 1)

    Which Parts of the Regulations do not apply to a properly marked limited quantity?

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    Answer: D. Parts 3 to 8 and 17

    Section 1.17(2) says Parts 3 to 8 and 17 do not apply to limited quantities when each means of containment displays the limited quantity mark and the other conditions are met.

    Check it: TDGR 1.17(2)

  12. Question 12 · Shipping Documents (Part 3)

    Where must a driver keep the shipping document while driving?

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    Answer: C. In a door pocket or within the driver's reach

    Section 3.7(a) requires the shipping document in a pocket on the driver's door or within reach while the driver is in the power unit.

    Check it: TDGR 3.7(a)

  13. Question 13 · Shipping Documents (Part 3)

    What is the correct order of the dangerous goods description on a shipping document?

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    Answer: C. UN number, shipping name, class, subsidiary class, packing group

    Section 3.5(1)(c) sets the order: UN number, shipping name, primary class (and compatibility group for Class 1), subsidiary classes in parentheses, then packing group.

    Check it: TDGR 3.5(1)(c)

  14. Question 14 · Shipping Documents (Part 3)

    How long must a consignor keep copies of shipping documents?

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    Answer: C. Two years

    Section 3.11(1) requires the consignor to be able to produce a copy for two years after the document was prepared or given to a carrier.

    Check it: TDGR 3.11(1)

  15. Question 15 · Shipping Documents (Part 3)

    A consignor wants to list CANUTEC's number as the 24-hour number on its shipping documents. What must it have?

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    Answer: D. Written permission from CANUTEC

    Section 3.5(2)(a) allows CANUTEC's number as the 24-hour number only with CANUTEC's written permission.

    Check it: TDGR 3.5(2)(a)

  16. Question 16 · Dangerous Goods Marks: Labels, Placards and UN Numbers (Part 4)

    What is the minimum size of a placard?

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    Answer: A. 250 mm on each side

    Section 4.8(2) requires each side of a placard to be at least 250 mm. Labels must be at least 100 mm per side under section 4.7(2).

    Check it: TDGR 4.8(2)

  17. Question 17 · Dangerous Goods Marks: Labels, Placards and UN Numbers (Part 4)

    Where must placards be displayed on a tank truck carrying dangerous goods?

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    Answer: D. On each side and each end

    Section 4.15(1) requires the primary class placard on each side and each end of a large means of containment.

    Check it: TDGR 4.15(1)

  18. Question 18 · Dangerous Goods Marks: Labels, Placards and UN Numbers (Part 4)

    How must the UN number be shown on a tank truck that needs one?

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    Answer: C. Black, at least 65 mm high, on an orange panel or the placard's white box

    Section 4.15.2(2) requires the UN number without the 'UN' prefix, in black characters at least 65 mm high, on an orange panel next to the placard or in a white rectangle on it.

    Check it: TDGR 4.15.2(2)

  19. Question 19 · Dangerous Goods Marks: Labels, Placards and UN Numbers (Part 4)

    Which load may NOT use the DANGER placard in place of class placards?

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    Answer: A. Any load that includes Class 2.3 toxic gases

    Section 4.16(2)(d) bars the DANGER placard for Class 2.3. It is also barred for Class 1, ERAP goods, Class 4.3 and some other goods.

    Check it: TDGR 4.16(2)

  20. Question 20 · Dangerous Goods Marks: Labels, Placards and UN Numbers (Part 4)

    A van carries 300 kg gross of boxed Class 3 goods, no ERAP needed. Are placards required on the van?

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    Answer: B. No; loads of 500 kg gross or less are exempt, with exceptions

    Section 4.16.1(1) says no placard is required on a road vehicle when the dangerous goods have a gross mass of 500 kg or less, unless an exclusion such as an ERAP, Class 2.3 or Class 4.3 applies.

    Check it: TDGR 4.16.1

  21. Question 21 · Means of Containment (Part 5)

    What does section 5.4 require when loading dangerous goods on a vehicle?

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    Answer: C. Loading and securing them to prevent damage leading to a release

    Section 5.4 requires the goods to be loaded and secured in the container, and the container on the vehicle, to prevent damage under normal conditions of transport that could lead to a release.

    Check it: TDGR 5.4

  22. Question 22 · Means of Containment (Part 5)

    How full may a container of liquid dangerous goods be filled if no standard sets a limit?

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    Answer: D. Within the manufacturer's limit, and never liquid full at 55°C or less

    Section 5.5(2) requires the person to respect the manufacturer's maximum and make sure the container could not become liquid full at any temperature up to 55°C.

    Check it: TDGR 5.5(2)

  23. Question 23 · Emergency Response Assistance Plans (Part 7)

    When is an approved ERAP required?

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    Answer: D. When the quantity exceeds the column 7 ERAP index (section 7.2)

    Section 7.2 requires an approved ERAP when the quantity of certain goods exceeds the ERAP index in column 7 of Schedule 1, with some special rules for rail and pathogens.

    Check it: TDGR 7.2; Schedule 1 col. 7

  24. Question 24 · Emergency Response Assistance Plans (Part 7)

    What ERAP information must appear on a shipping document when an ERAP is required?

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    Answer: B. The ERAP reference number and ERAP phone number, marked 'ERAP'

    Section 3.5(1)(i) requires the ERAP reference number issued by Transport Canada and the ERAP telephone number, each preceded or followed by 'ERAP' or 'PIU'.

    Check it: TDGR 3.5(1)(i)

  25. Question 25 · Reporting Requirements (Part 8)

    What are CANUTEC's emergency telephone numbers?

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    Answer: C. 1-888-CANUTEC (226-8832), 613-996-6666 or *666 on a cellphone

    Part 8 lists 1-888-CANUTEC (1-888-226-8832) and 613-996-6666, and Transport Canada also lists *666 from a cellular phone.

    Check it: TDGR 8.4(4)(a); TC: CANUTEC

  26. Question 26 · Reporting Requirements (Part 8)

    A truck spills 50 L of a Class 3, Packing Group III liquid on a highway. Which report must be made first?

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    Answer: B. An emergency report to the local authority responsible for emergencies

    The section 8.2 table requires an emergency report for PG III releases of more than 30 L or 30 kg, made as soon as possible to the local authority responsible for emergency response.

    Check it: TDGR 8.2

  27. Question 27 · Reporting Requirements (Part 8)

    Within what time must a 30-day follow-up report be made after a release report?

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    Answer: A. Within 30 days, in writing to the Minister

    Section 8.6 requires the person who made the section 8.4 report, or their employer, to make a written follow-up report to the Minister within 30 days.

    Check it: TDGR 8.6

  28. Question 28 · Safe Handling, Emergency Measures and the ERG

    In the Emergency Response Guidebook, which pages list materials by their four-digit ID number?

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    Answer: A. The yellow pages

    The ERG's yellow pages are sorted by ID (UN) number, the blue pages by name, the orange pages hold the guides and the green pages give isolation and protective action distances.

    Check it: ERG 2024

  29. Question 29 · Safe Handling, Emergency Measures and the ERG

    What should a responder do if an entry in the ERG's yellow pages is highlighted?

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    Answer: A. Check the green pages for isolation and protective distances

    Highlighted entries have initial isolation and protective action distances in the green section, used together with the orange guide.

    Check it: ERG 2024

  30. Question 30 · Safe Handling, Emergency Measures and the ERG

    From which direction should you approach a dangerous goods spill?

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    Answer: C. Upwind, uphill and upstream

    Approaching from upwind, uphill and upstream keeps vapours, gases and run-off moving away from you.

    Check it: ERG 2024

These are VoltExam questions written for the Transportation of Dangerous Goods (TDG) Training Certificate Test (Road), not official exam questions. Each shows the rule or standard to check it against. New to this exam? Read the TDG Training Certificate (Road) guide.

Last checked against Transport Canada (Transportation of Dangerous Goods Directorate) on .

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