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BC Commercial Driver Licence - Quiz 4

You enter a lane in which there are double broken yellow lines running down the center. What is the significance of these lane markings?
a.
b.
c.
d.

Question 1 of 30

Which of the following is correct when you are manually performing a slack adjustment?
a.
b.
c.
d.

Question 2 of 30

You are traveling in an empty truck on a steep hill on a single-lane industrial road. What must you do when a loaded vehicle is approaching?
a.
b.
c.
d.

Question 3 of 30

There are usually two air line connections between a tractor and a trailer. One provides air from the tractor's compressor to the trailer at full reservoir pressure. What does the other air line connection supply?
a.
b.
c.
d.

Question 4 of 30

What colour are signs, such as speed limit signs, that advise drivers about driving regulations?
a.
b.
c.
d.

Question 5 of 30

Why do commercial vehicles with air brakes also have mechanical parking brakes?
a.
b.
c.
d.

Question 6 of 30

What colour and shape are signs that pertain to warnings near schools?
a.
b.
c.
d.

Question 7 of 30

Why is manual adjustment of automatic slack adjusters dangerous?
a.
b.
c.
d.

Question 8 of 30

As a commercial driver, you must keep in your possession a daily log that's updated to your last change in duty status, as well as copies of your daily log for your cycle, and any supporting documents. How much time do you have to submit those items to your carrier?
a.
b.
c.
d.

Question 9 of 30

Using the applied stroke method for checking for brake adjustment, an applied stroke approaching what length indicates the brakes need adjusting?
a.
b.
c.
d.

Question 10 of 30

The air line between the compressor on your vehicle and the supply reservoir has ruptured. Which of the following prevents a total loss of air pressure in the service brake system?
a.
b.
c.
d.

Question 11 of 30

What are glad hands?
a.
b.
c.
d.

Question 12 of 30

If there are two drivers with a vehicle, generally only one of the two needs to sign the written inspection report. When must both drivers sign the report?
a.
b.
c.
d.

Question 13 of 30

Which of the following are two ways that spring parking brakes can be held in the released position?
a.
b.
c.
d.

Question 14 of 30

What are the maximum amounts of on-duty times in Cycles 1 and 2?
a.
b.
c.
d.

Question 15 of 30

As a tractor-trailer truck driver, you pull into a pullout area to complete a pre-hill inspection. If your vehicle has air brakes with automatic slack adjusters, must you check pushrod travel?
a.
b.
c.
d.

Question 16 of 30

What happens when a trailer relay emergency system 'dynamites' the trailer's brakes?
a.
b.
c.
d.

Question 17 of 30

Using the pry method of free stroke measurement for checking brake adjustment, a free stroke approaching what length indicates the brakes need adjusting?
a.
b.
c.
d.

Question 18 of 30

How much might you be fined for operating a vehicle with defective brakes, including excessive brake chamber pushrod stroke?
a.
b.
c.
d.

Question 19 of 30

Compounding spring and air brakes can permanently damage service brake components. How can you avoid compounding brakes?
a.
b.
c.
d.

Question 20 of 30

By federal law, how often must you perform manual and automatic slack adjuster inspections?
a.
b.
c.
d.

Question 21 of 30

You are driving a tractor-trailer, and the two connecting air lines between the tractor and trailer have just broken. What's function does the tractor protection system perform in this circumstance?
a.
b.
c.
d.

Question 22 of 30

What colour and shape are signs on the road that warn of possible hazards ahead?
a.
b.
c.
d.

Question 23 of 30

How many consecutive hours off-duty does it take to reset Cycle 1 and Cycle 2?
a.
b.
c.
d.

Question 24 of 30

What must you do if the low pressure warning indicator on your air brake activates?
a.
b.
c.
d.

Question 25 of 30

What is an industrial road?
a.
b.
c.
d.

Question 26 of 30

When a sign displays a red circle with a red line that bisects the circle at an angle, what should drivers understand about the action depicted on the sign underneath the red circle?
a.
b.
c.
d.

Question 27 of 30

As a commercial driver, how many hours of off-duty time must you take every day and how many of those hours must be consecutive?
a.
b.
c.
d.

Question 28 of 30

In a dual air brake system, if an air line in the primary braking system ruptures, what happens if you make a brake application?
a.
b.
c.
d.

Question 29 of 30

An air brake-endorsed driver's licence is required to operate most vehicles equipped with air-over-hydraulic brakes. What is the only exception?
a.
b.
c.
d.

Question 30 of 30


 

It is recommended that you take a practice test before you take the actual written test. Please note, however, that this is not the actual test, and you will not receive your license if you pass this sample practice test. If you’re getting your commercial licence, you've come to the right place.


Remember, our tests are similar to the official BC professional drivers test that you will have to take and pass in order to attain your commercial driver licence, as there is no practice test that can be the exact same as the official test, as they tend to change often, but nonetheless, 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 of time.