BC COMMERCIAL DRIVER LICENCE PRACTICE TEST 01

Commercial drivers in British Columbia, Canada are required to follow specific traffic rules to ensure safety and avoid accidents.

BC Commercial Driver Test 01

1 / 30

During extremely wet conditions, or after driving through water, what is the best way to dry out your brakes?

Apply slight pressure on the brake pedal for a short distance.

Reduce speed, then apply heavy pressure on the brake pedal until the vehicle comes to a stop.

Stop the vehicle and let it sit for an hour.

Increase speed, then apply heavy pressure on the brake pedal.

2 / 30

You are driving an 8-axle tractor-trailer combination that has 16 brakes. If one or two of the brakes are not properly adjusted, which of the following is likely to occur?

the tractor-trailer will have a shorter stopping distance

the tractor-trailer will be unable to climb hills

the tractor-trailer will have a longer stopping distance

the tractor-trailer will be unable to accelerate

3 / 30

If you are operating a combination vehicle, but not all of the vehicles have ABS (Anti-lock Braking System), how should you brake in an emergency?

As if all of the vehicles have ABS.

Initially as if the ABS system is working, and, as you come to a stop, as if the ABS system is not working.

Initially as if the ABS system is not working, and, as you come to a stop, as if the ABS system is working.

As if none of the vehicles have ABS.

4 / 30

What is brake lag time?

the time between applying air brakes (as in, pressing the brake pedal) and the vehicle coming to a full stop

the time between applying air brakes (as in, pressing the brake pedal) and the start of the brakes functioning (as in, the actual braking of the vehicle)

the time between perceiving a hazard and the vehicle coming to a full stop

the time between perceiving a hazard and applying air brakes (as in, pressing the brake pedal)

5 / 30

You are driving a taxi, and you wish to follow the 'two-second rule' for keeping a safe distance between you and the car in front of you. How is the 'two-second rule' implemented?

Start from your current position, then count 'One thousand and one, one thousand and two' to count off your seconds as you accelerate to catch the vehicle in front of you. If you catch the vehicle by the time you say 'two,' you were at a safe driving distance.

Watch the vehicle ahead pass some checkpoint on the roadway, then count 'One, two' to count off your two seconds. If you have just reached that checkpoint or have not yet reached it, you are at a safe driving distance.

As the vehicle in front of you comes to a stop, count 'One, two' to count off your two seconds. If you did not have to brake before you finish 'two,' then you were at a safe driving distance.

Watch the vehicle ahead pass some checkpoint on the roadway, then count 'One thousand and one, one thousand and two' to count off your two seconds. If you have just reached that checkpoint or have not yet reached it, you are at a safe driving distance.

6 / 30

A Class 1, 2, 3, or 4 learner's licence allows you to practise driving with a supervisor. Which of the following two requirements must your supervisor meet?

He/she must be at least 18 years old and hold a Class 1 licence.

He/she must be at least 21 years old and hold the appropriate licence for the vehicle youâ€™re practising on.

He/she must be at least 19 years old and hold the appropriate licence for the vehicle youâ€™re practising on.

He/she must be at least 19 years old and hold a Class 5 licence.

7 / 30

If you are practicing under a Class 1 or Class 3 learner's licence, which of the following are the only person(s) (besides you) allowed in the vehicle while you are practicing?

the supervisor

persons over 21 years of age

persons over 19 years of age

the supervisor and other learners

8 / 30

You are driving a truck and you pick up a load that doubles the weight of the truck. What effect does the change in weight have on the power required to stop the truck?

it cuts it in half

it triples it

it doubles it

it quadruples it

9 / 30

While you practise under your learner's licence, your supervisor must sit beside you. What if (as in the case of a school bus), there is no seat beside you? Where must your supervisor sit?

two seats behind you

immediately behind you

two seats behind you and to your right

immediately behind you and to your right

10 / 30

During normal brake use, brake components typically heat up to 120

Nothing will occur because an automatic shut-down system will prevent the brakes from overheating.

Some brake damage may occur, but the braking system will prevent the brakes from failing or catching on fire.

The excessive heat could cause brake fade, brake damage, brake failure, or even catch on fire.

Some brake damage may occur or the brakes may fail, but there is no chance of the brakes catching on fire.

11 / 30

You and a friend are driving two different vehicles that are the same weight. You, however, are traveling at twice the speed of your friend. How much more stopping power will your vehicle require compared to that of your friend?

four times

two times

three times

five times

12 / 30

For how long is a learner's licence for a Class 1, 2, 3, or 4 licence valid?

one year

two years

eighteen (18) months

thirty (30) months

13 / 30

You are a Class 2 licenced driver, and you have been hired to drive a bus for a band. There is not enough room inside, however, for the band equipment. The bus, therefore, will need to tow a trailer filled with band equipment. Under your Class 2 licence, the permitted weight of that trailer is limited to 4600 kg EXCEPT in which of the following circumstances?

when both the bus and the trailer have air brakes

when neither the bus nor the trailer has air brakes

when the bus has air brakes, but the trailer does not

when the trailer has air brakes, but the bus does not

14 / 30

Complete the following: the faster you are traveling in a vehicle, ________________________:

the more power you need to stop the vehicle

the less time it will take to stop the vehicle

the less power you need to stop the vehicle

the shorter the vehicleâ€™s braking distance

15 / 30

When emergency braking in a vehicle equipped with ABS (Anti-lock Braking System), what should your response be to brake noise, pedal movement, and shudder?

These are a sign the ABS system is failing. Remove your foot from the brake pedal.

These are normal. Continue applying firm, continuous pressure to the brake pedal until the vehicle stops.

Continue pumping the brake pedal until the noise and shuddering pass.

These are not normal. Switch to pumping the brake pedal.

16 / 30

For how long are air brake knowledge test results valid? In other words, within what amount of time will you have to re-take the air brake knowledge test if you do not have the endorsement placed on your licence within that time?

six (6) months

eighteen (18) months

one (1) year

two (2) years

17 / 30

What is 'brake fade'?

a visible change of colour in the brake drum as brakes wear down

a maintenance chart assigning increasingly fading colors for each month moving forward from a brake replacement

an increase in braking power because of the effects of gravity

a reduction or loss of a braking ability because the brakes of a vehicle are not working properly

18 / 30

If you fail to pass the knowledge test for an air brake endorsement after three (3) attempts, what must you do?

You must wait six (6) months before attempting the air brake knowledge test again.

You must complete or repeat an approved 2-hour air brake refresher course.

You must pay an additional fee to take the test for a fourth time.

You must complete or repeat an approved 16-hour air brake training course.

19 / 30

You are driving a vehicle equipped with ABS (Anti-lock Braking System). What is the proper use of that system when braking in an emergency?

Pump the brake pedal until you feel the vehicle slowing, then apply continuous pressure to the brake pedal.

Pump the brake pedal until the vehicle stops.

Apply continuous pressure to the brake pedal until you feel the vehicle slowing, then pump the brake pedal.

Apply firm, continuous pressure to the brake pedal until the vehicle stops.

20 / 30

The slope or grade of the road has an impact on a vehicle's stopping distance because of the effect of gravity. Which of the following is correct concerning that impact?

A vehicle travelling up a hill will need a longer stopping distance than a vehicle travelling at the same speed on a level surface.

A vehicle travelling up a hill will need a longer stopping distance than a vehicle travelling at the same speed down a hill.

A vehicle travelling down a hill will need a longer stopping distance than a vehicle travelling at the same speed on a level surface.

A vehicle travelling down a hill will need a shorter stopping distance than a vehicle travelling at the same speed up a hill.

21 / 30

A limousine service has a fleet of vehicles, the largest of which are limousines with a capacity for 10 passengers, not including the driver. This means that, at times, the company's drivers may be required to drive a vehicle containing 11 persons (10 passengers and the driver). What class of licence must the companyâ€™s drivers hold to ensure that they are able to drive the limousines in the company's fleet regardless of the number of passengers?

a Class 4 (restricted) licence

a Class 3 licence

a Class 5 licence

a Class 4 (unrestricted) licence

22 / 30

Under which of the following conditions is an engine retarder most efficient?

at a higher r.p.m. and a lower vehicle speed

at a lower r.p.m. and a higher vehicle speed

at a lower r.p.m. and a lower vehicle speed

at a higher r.p.m. and a higher vehicle speed

23 / 30

You should be able to travel downhill without using your service brakes when you have done which of the following?

stopped the vehicle halfway down the hill, then switched to a higher gear

switched to a higher gear

used the vehicle's retarding device, but only after increasing speed and switching to a higher gear

selected an appropriate speed, selected an appropriate low gear, and used the vehicle's retarding device

24 / 30

Because water can reduce braking efficiency, you should avoid driving through large amounts of water whenever possible. If you have to drive through water, you want to minimize the amount of water entering the brake drum and shoes. Which of the following is the best, and safest, way to accomplish this?

Increase your speed and apply constant pressure on the brake pedal as you travel through the water.

Shift to a higher gear and keep your foot off the brake pedal as you travel through the water.

Reduce your speed and apply constant pressure on the brake pedal as you travel through the water.

Shift to a higher gear, then apply intermittent (on again, off again) pressure to the brake pedal as you travel through the water.

25 / 30

If, while travelling down a hill, your speed increases above your chosen speed, what should you do?

Apply the brakes until the vehicle comes to a complete stop, then downshift to a lower main gear.

Increase your speed, then switch to a higher gear before applying the brakes.

Apply the brakes enough to reduce your speed by 10 to 15 km/hr and downshift to a lower main gear.

Quickly shift to a higher gear, then apply the brakes to reduce your speed.

26 / 30

ABS (Anti-lock Braking System) focuses on preventing brakes from locking during heavy braking. What is ATC, an optional addition to ABS, and what does ATC focus on?

ATC stands for 'Alert Timing Centre.' The system focuses on alerting the vehicle driver in a timely manner of potential brake failure due to harsh weather conditions such as ice, snow or heavy rain.

ATC stands for 'Automatic Traction Control.' The system focuses on sensing when wheels have lost traction and taking corrective measures when that happens.

ATC stands for 'Advanced Temperature Control.' The system focuses on preventing brakes from overheating by controlling brake temperature during heavy braking.

ATC stands for 'All Terrain Control.' The system focuses on vehicle operators maximizing control on alternative terrains, such as sand or loose dirt.

27 / 30

Carriers must do which of the following to check your driving record?

They must check it before they hire you, and, after that, once a year.

They must check it two years after they hire you, and, after that, every four years.

They must check it before they hire you, and, after that, every two years.

They must check it a year after they hire you, and, after that, every two years.

28 / 30

An air brake endorsement is required for which of the following?

to operate a construction vehicle

to operate vehicles equipped with air brakes on a highway (other than a vehicle defined as a construction vehicle)

to operate a bus, whether or not the bus has air brakes

to operate vehicles equipped with air brakes on or off a highway (other than a vehicle defined as a construction vehicle)

29 / 30

You are driving a school bus. After you load your passengers, the weight of the school bus is doubled. If, after loading, you also double your speed, what effect do both those changes (doubled weight and doubled speed) have on your stopping power? In other words, how much more stopping power will be required after those two changes?

two times

four times

ten times

eight times

30 / 30

Which of the following do you need to do when stopping a vehicle?

think-do-see (think

think-see-do (think

do-see-think (do

see-think-do (see

Your score is

One such rule is the mandatory use of safety belts by all occupants of commercial vehicles. In addition, commercial drivers must adhere to speed limits posted on highways and local roads, which vary depending on the type of vehicle and the location. Moreover, commercial drivers must always yield to pedestrians and follow traffic signals and signs. They must also maintain a safe distance from other vehicles on the road, especially in adverse weather conditions. Finally, commercial drivers in BC cannot use handheld electronic devices while driving, which is against the law. These traffic rules ensure the safety of the commercial driver and the passengers in the vehicle and contribute to the community’s overall safety.

Remember, our tests are similar to the official BC professional drivers test you must take and pass to attain your commercial driver’s licence. No practice test can be the same as the official one, as they change often. Still, by practicing with them in conjunction with your “driving commercial vehicles – a guide for professional drivers” handbook, you will be well on your way to attaining your CDL in a short period.