Chapter 5-3: Other ways to lose your licence

The “Other Ways to Lose Your Licence” section of the Ontario truck driver knowledge test highlights situations beyond accumulating demerit points that can result in the loss of driving privileges.

Ontario Truck Driver Test - Chapter 5-3: Other ways to lose your licence

1 / 25

If a commercial driver has alcohol or a drug in their system while driving a commercial vehicle, what may they face?

No consequences if no collision occurs

Only a verbal warning

Serious penalties, including licence suspensions and monetary penalties

A mandatory training course but no fines

2 / 25

Drivers of which licence classes are subject to the zero-tolerance rule for drugs and alcohol when driving the specified vehicles?

Motorcycle classes only

Classes G only

No specific classes

Classes A to F

3 / 25

Which of the following is a reason your driver’s licence may be suspended?

Forgetting to renew your licence plate sticker

Driving without your insurance card in the vehicle

A medical condition that may affect your ability to drive safely

Receiving a parking ticket

4 / 25

How are drivers impaired by alcohol or a drug treated under the law?

They face Criminal Code and Highway Traffic Act sanctions

They face only a small administrative fee

They are only required to attend a lecture

They are treated differently and not subject to sanctions

5 / 25

What can happen if police determine you have drugs or alcohol in your system and/or that you are impaired?

You will only receive a written warning

You may face severe consequences including criminal charges and jail time

There will be no consequences if you admit use

You will be required to attend an information session only

6 / 25

What should you do with over-the-counter medicines before driving?

Ignore the package information

Take extra doses to “get used to it”

Read the information on the package about possible effects on driving

Only check the expiry date

7 / 25

When stopped by police, which of the following might you be required to do for alcohol testing?

Complete a written exam

Show your maintenance records

Run for a short distance

Blow into a roadside screening device or perform physical co-ordination tests

8 / 25

Who is legally required to report medical conditions that may affect a person’s ability to drive safely?

Family members

Doctors

Pharmacists

Police officers

9 / 25

Before deciding to drive after taking any drug or medication, what is the safest action to take?

Rely only on how you feel at the moment

Test yourself by driving around the block

Ask your doctor or pharmacist before you drive

Drink coffee to stay alert

10 / 25

At what minimum age must doctors report patients with conditions that may affect safe driving?

18 years and older

16 years and older

14 years and older

21 years and older

11 / 25

If you use prescription medicines or get allergy shots, what should you do before driving?

Only ask friends about their experiences

Only read online reviews

Assume there are no side effects

Ask your doctor about side effects that could affect driving

12 / 25

Which of the following vehicles are covered by the commercial zero-tolerance rule?

Boats and aircraft

Bicycles and e-scooters

Vehicles requiring a class A to F licence, CVOR vehicles, and road-building machines

Only personal passenger cars

13 / 25

In Canada, driving when your ability is impaired by alcohol or a drug is:

Legal if you drive slowly

A crime

Only a traffic infraction

Allowed if it’s a short distance

14 / 25

What may happen to your driver’s licence after a medical report is made about a condition affecting driving?

It is automatically renewed

It is unaffected by medical reports

It may be suspended until new medical evidence shows it is safe

It is permanently cancelled with no appeal

15 / 25

Which types of common medicines may affect your driving ability?

Only pain relievers

Only vitamins and minerals

Only eye drops

Stimulants, diet pills, tranquilizers, sedatives, allergy and cold remedies

16 / 25

Which of the following can have dangerous effects on your driving?

Cannabis, illegal drugs, prescription drugs, and over-the-counter medications

Only alcohol, not drugs

Only herbal supplements

Only illegal drugs

17 / 25

What is the combined effect of drugs and alcohol on driving?

They cancel each other out

They always improve alertness

They can have dangerous effects, even several days after taking the drug

They have no effect if taken in small amounts

18 / 25

Can you be charged with impaired driving even if your vehicle is not moving?

No, the vehicle must be moving

Only if the engine is revving loudly

Only if you are in a parking lot

Yes, if you are impaired while behind the wheel

19 / 25

What is the rule for commercial vehicle drivers regarding alcohol and drugs?

They must have zero presence of alcohol and/or drugs in their system

They may drink only off-duty days

They may use drugs if prescribed by a doctor

They may drink as long as they stay under the legal limit

20 / 25

What may police do to determine if alcohol or drug testing is required?

Only test drivers who admit to drinking

Stop any driver and perform roadside spot checks

Test only commercial drivers

Only test drivers after a collision

21 / 25

If you cannot give a breath sample or it is impractical to obtain one, what can a police officer require instead?

A saliva sample only

A hair sample

A vision test only

A blood sample

22 / 25

What happens if you fail or refuse to comply with a police demand for breath samples or sobriety tests?

You will be charged under the Criminal Code

You will only be fined with no charge

You can reschedule the test for another day

The police must let you go

23 / 25

In cases of possible impairment by drugs or a combination of alcohol and drugs, police can require a driver to:

Provide breath samples, do field sobriety tests, and/or give bodily fluid samples

Only answer verbal questions

Only sign a declaration form

Only show their driver’s licence

24 / 25

If you are 21 years of age and under, what is your legal blood alcohol level when driving?

It does not matter

It may be up to 0.08

It may be up to 0.05

It must be zero

25 / 25

To whom do doctors report medical conditions that may affect a person’s ability to drive?

The Ministry of Transportation

The vehicle manufacturer

The patient’s employer

The local police department

Your score is

Truck drivers may lose their license for offenses such as driving under the influence of alcohol or drugs, failing to pay traffic fines, or being convicted of serious criminal offenses involving a vehicle. Repeated violations, providing false information, or refusing a breathalyzer test can also lead to suspension or revocation. This section underscores the importance of responsible driving and legal compliance in maintaining a commercial licence and protecting both public safety and professional reputation.

Test yourself with the Ontario truck licence practice test study questions until you can explain the concepts clearly without looking at the notes.