The pre trip inspection class a test will examine your knowledge of internal inspection and external inspection. In order to receive your Commercial driver’s license, it is required that you pass the state’s official CDL written Knowledge exam.
When examining your suspension, you should look for springs which are...?

Question 1 of 30

Tire pressures should be checked by...?

Question 2 of 30

Axle mounting points should be checked at the point...?

Question 3 of 30

How many components are there to an air brake test?

Question 4 of 30

The fifth wheel must be positioned properly so that the tractor frame will clear...?

Question 5 of 30

The suspension components inspection must be undertaken on...?

Question 6 of 30

When checking battery connectors, you should be looking for signs of...?

Question 7 of 30

Which of these is not part of your inspection of the front of vehicle?

Question 8 of 30

If you have a hydraulic brake reserve system, you should check it is working by depressing the brake and...?

Question 9 of 30

A rust trail coming from a lug nut may demonstrate...?

Question 10 of 30

You should not pass a wheel as being fit for travel if its rims have...?

Question 11 of 30

When you fully apply the foot brake on a single vehicle and hold it for one minute, there is a fault if the air pressure drops more than how many pounds in one minute?

Question 12 of 30

When making the static check on a combination vehicle, the air pressure must not drop more than how much in a single minute?

Question 13 of 30

If you are driving a school bus, you must have a first aid kit containing how many defined items?

Question 14 of 30

On a tractor – trailer combination vehicle, when you let the air pressure out of the system, the spring brakes should activate when the pressure drops to around...?

Question 15 of 30

If a vehicle is equipped with a disabled person's lift, who is responsible for knowing how it operates?

Question 16 of 30

Any cargo lift with which your vehicle or trailer is equipped must, in transit, be...?

Question 17 of 30

Vehicles with air suspension should be checked for leaks by...?

Question 18 of 30

When making air brake checks, you must use wheel chocks...?

Question 19 of 30

To check service brakes, you should apply them when pulling forward at...?

Question 20 of 30

When testing the low air pressure warning device, it must activate before the pressure drops below...?

Question 21 of 30

On an air brake system, you should build the pressure up until it is cut off, which should happen around...?

Question 22 of 30

Passenger entry doors must close securely...?

Question 23 of 30

With hydraulic brakes, if you pump the brake pedal three times and then hold it down for five seconds, what should happen?

Question 24 of 30

The minimum tread depth for steering axle tires is what?

Question 25 of 30

You should check for air leaks by...?

Question 26 of 30

When checking a passenger vehicle, you should make sure that all seat frames are securely attached to...?

Question 27 of 30

Every tire on your vehicle must have a minimum tread depth of...?

Question 28 of 30

When driving a trailer, landing gear should be...?

Question 29 of 30

A safety belt should be rejected if it...?

Question 30 of 30



Studying and applying oneself is the only way to successfully learn the information you need to know to pass all testing required to obtain your CDL. We are here to help.

Don’t hesitate to take advantage of our practice tests in each category specific to your needs. We wish you the best of luck in your endeavors and are pleased to be of assistance.