When may placards be removed from a vehicle that carried dangerous goods?

Once unloaded and cleaned of residue

As soon as the last goods are unloaded

When the vehicle leaves the highway

At the end of the driver's shift

Alberta Class 1–4: Transporting dangerous goods

Training certificates, the nine hazard classes and their divisions, what to do after a dangerous occurrence, where shipping documents must be kept, and safety marks.

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Transporting dangerous goods · Question 1Score 0/0

Who must sign a driver's Dangerous Goods Training Certificate?

Tip: press 1–4 to answer and Enter for the next question.

Study reference: Commercial Driver's Guide (Spring 2023), Ch. 9 Transporting Dangerous Goods — Training requirements, What is a dangerous good?, Dangerous occurrences, Documents, Safety marks

All 15 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

Who must sign a driver's Dangerous Goods Training Certificate?
1. The employer
2. The registry agent
3. A police officer
4. The shipper
When may placards be removed from a vehicle that carried dangerous goods?
1. As soon as the last goods are unloaded
2. When the vehicle leaves the highway
3. At the end of the driver's shift
4. Once unloaded and cleaned of residue
Organic peroxides belong to which division?
1. Division 6.1
2. Division 5.1
3. Division 2.2
4. Division 5.2
What flash point defines a Class 3 flammable liquid?
1. Below 37.8 °C
2. Below 93 °C
3. Above 60.5 °C
4. Below 60.5 °C (closed cup)
A substance gives off flammable gas when it gets wet. Which division is it?
1. Division 4.1
2. Division 4.2
3. Division 4.3
4. Division 5.1
Which explosives division has a mass explosion hazard?
1. Division 1.4
2. Division 1.1
3. Division 1.6
4. Division 1.2
After a dangerous goods leak from your vehicle, whom must you notify immediately?
1. Only your employer, in writing by the end of the day
2. Police, the Alberta CIC, and the owner, employer and consignor
3. Only the fire department and the nearest hospital
4. Only the consignee at delivery
How many hazard classes of dangerous goods are there?
1. Nine
2. Six
3. Seven
4. Twelve
Who may handle or transport dangerous goods?
1. A trained person, or one working with them
2. Any Class 1 or Class 3 licence holder
3. Anyone over 21 with a clean driving record
4. Anyone with a Q endorsement
Which class covers corrosives that eat into metal and skin?
1. Class 9
2. Class 4
3. Class 6
4. Class 8
A loaded dangerous goods trailer is dropped in a lot with no one in charge. Where does a copy of the documents go?
1. With the nearest police detachment
2. Mailed to the carrier's head office
3. Inside the locked trailer with the goods
4. In a waterproof holder on the trailer
Which class covers explosives?
1. Class 7
2. Class 3
3. Class 1
4. Class 5
A dangerous goods inspector asks to see proof of training. What must the driver show?
1. The bill of lading only
2. The driver's medical report
3. The training certificate
4. The vehicle registration
Division 2.3 gases are:
1. Flammable
2. Toxic
3. Non-flammable and non-toxic
4. Corrosive
You leave the cab of a dangerous goods vehicle. Where must the shipping document be?
1. On the driver's seat or in the door pocket
2. With the trailer's spare tire
3. Locked in the glove box for safekeeping
4. In your jacket pocket, so it stays with you

Transporting dangerous goods: key rules to remember

Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗

Introduction and training (p. 81)

No one may handle, offer for transport or transport dangerous goods unless they are trained or work in direct contact with a trained person.
Carriers are responsible for making sure employees are trained to work safely with dangerous goods.
Training usually leads to a Dangerous Goods Training Certificate showing the employee completed the course.
Carriers may train employees themselves or hire a trainer.
In every case the employer must be satisfied with the training and sign the certificate.
A dangerous goods driver must show the training certificate when a dangerous goods inspector asks for it.

What is a dangerous good? (pp. 81–83)

There are nine hazard classes of dangerous goods, and some classes have divisions.
Class 1 is explosives.
Division 1.1 explodes as a mass.
Division 1.2 has a fragment projection hazard but no mass explosion hazard.
Division 1.3 has a fire hazard with a minor blast or projection hazard, but no mass explosion hazard.
Division 1.4 has no significant hazard; effects stay mostly inside the package.
Division 1.5 is very insensitive but has a mass explosion hazard; Division 1.6 is extremely insensitive.
Class 2 is gases: 2.1 flammable, 2.2 non-flammable and non-toxic, 2.3 toxic.
Class 3 is flammable liquids, with a closed-cup flash point below 60.5 °C.
Class 4 is flammable solids, substances liable to spontaneous combustion, and substances that give off flammable gas on contact with water.
Division 4.1 is a solid that ignites easily in transport, burns hard, or causes fire through friction or retained heat.
Division 4.2 may combust spontaneously or heat up until it ignites in contact with air.
Division 4.3 may give off flammable gas, or enough heat to ignite gas, when it touches water or water vapour.
Class 5 is oxidizing substances (5.1) and organic peroxides (5.2).
Division 5.1 helps other material burn by giving off oxygen, whether or not it burns itself.
Division 5.2 organic peroxides are strong oxidizers that may decompose explosively or be sensitive to heat, shock or friction.
Class 6 is toxic substances (6.1) and infectious substances (6.2).
Division 6.1 is toxic if inhaled, absorbed through skin, or swallowed.
Division 6.2 is organisms that are, or are believed to be, infectious to humans and animals.
Class 7 is radioactive materials, which are described by activity or packaging rather than named.
Class 8 is corrosives, which eat into metal, skin and internal tissue.
Class 9 is miscellaneous: 9.1 miscellaneous dangerous goods, 9.2 environmentally hazardous substances, 9.3 dangerous wastes.

Dangerous occurrences (p. 83)

A dangerous occurrence includes a leak, a collision, or an accidental release or near release.
The driver in charge of the goods must immediately notify the local police.
The driver must also notify the Alberta Co-ordination and Information Centre (CIC) at 1-800-272-9600.
The driver must also notify the vehicle owner, the employer and the owner of the consignment.

Documents (p. 83)

Every dangerous goods driver must carry the shipping document, waste manifest or other required document.
In the cab, the documents must be within the driver's reach or in a pocket on the driver's door.
When the driver is out of the cab, documents must be on the driver's seat or in the driver's door pocket.
For a parked trailer with dangerous goods not attached to a tractor, the person in charge of the parking area keeps a copy of the documents.
If no one is in charge of that parking area, put a copy in a waterproof container on the trailer where it is easy to see and reach.
On multi-stop deliveries by tank truck, tank trailer or individual gas cylinders, record the change in quantity on the shipping document after each delivery.

Safety marks (pp. 83–84)

The consignor supplies safety marks when they are needed.
The driver must make sure the vehicle has the right safety marks, placards or orange panels before it is loaded.
Safety marks go on each side and each end of the trailer or transport unit.
Placards and panels may be moved to the front of the lead vehicle so they can be seen.
Safety marks stay on until no hazard remains: the goods are unloaded and the vehicle or container is cleaned and purged of residue.
If placards or panels are lost, damaged or defaced during a trip, the carrier must replace them.
A vehicle carrying Class 1 explosives must carry a document signed by the owner or lessee naming the drivers allowed to drive or ride with it.
Alberta's 24-hour dangerous goods line is 1-800-272-9600.

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