colorado
CDL Practice Test

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Welcome to the Colorado CDL practice test site. Topics covered in these practice tests are designed to prepare you for the Colorado Department of Motor Vehicles CDL test. These tests are free and you are able to take tests as many times as you would like as you prepare to obtain your Colorado CDL. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50-minute time limit.  You may not go back once you answer a question. Click the "Start Test" button below to begin. 

1 / 40

Which seats must have a seat belt:

2 / 40

What is the purpose of a driver placarding his or her vehicle?

3 / 40

The _____of the kingpin has the locking jaw close around it.

4 / 40

The air leakage rate for a combination vehicle should not exceed ____psi a minute.

5 / 40

What is the correct number of red reflective triangles that you should carry?

6 / 40

There must be a hazardous materials identification number on the ______ and on the ______.

7 / 40

The baffles in a tank trailer help to control:

8 / 40

The most important hand signal you should agree on with a helper is:

9 / 40

This object is not checked at the rear of the trailer.

10 / 40

Forward and back surge is powerful in this type of tanker.

11 / 40

What kind of surge occurs with baffles?

12 / 40

How do you test your service brakes?

13 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

14 / 40

How many seats may be placed in the aisle if the bus is a charter and is carrying agricultural (farm) workers?

15 / 40

Select the true statement about stop valves in a cargo tank:

16 / 40

You downshift automatic transmissions ______.

17 / 40

Select how you can tell if your vehicle is equipped with an anti-lock braking system:

18 / 40

Should the air pressure in the service air tanks fall below____the driver must be alerted via warning mechanism in the truck cab.

19 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

20 / 40

Which of the following statements is true about speed management?

21 / 40

Select the true statement in regards to a converter dolly:

22 / 40

What is the minimum amount of distance you should maintain when driving at 50 mph in ideal conditions with a 100 ft twin trailer combination?

23 / 40

Before backing under the trailer you should______when coupling a tractor and trailer with air lines already connected.

24 / 40

If there is no traffic light or attendant, how far from the draw of a drawbridge must you stop?

25 / 40

Secure baggage and freight in ways that avoid damage and:

26 / 40

If your bus has an emergency exit door, it must:

27 / 40

A drawbridge does not have a traffic light showing green or a traffic control attendant. How many feet before the draw of a bridge must a bus driver stop?

28 / 40

This should be cleaned and then adjusted properly while inside the cab.

29 / 40

In the event of a tire failure you should...

30 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

31 / 40

Is it mandatory that all vehicles with air brakes have low air pressure warning signals?

32 / 40

Select the accurate statement in regards to rolling up the landing gear to complete the coupling process.

33 / 40

How do you check the power steering fluid?

34 / 40

While completing the 2nd component of the air brake check you are required to turn the electrical power on, begin fanning off the air pressure by rapidly relasing and apply the foot brake and _____.

35 / 40

What does the amount of liquid allowed in the tank depend on?

36 / 40

The parking brakes should be used____in air brake vehicles.

37 / 40

If you are transporting cargo, you should inspect the cargo and securing devices:

38 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

39 / 40

What product is typically carried in a liquid tank trailer without baffles?

40 / 40

As the driver of a bus, how can you best avoid hindering other traffic on the highway?

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CDL Category Practice Tests

CDL Practice Test

How To Get A colorado Commercial Drivers License

Colorado residents the age of 18 or older can apply for their commercial driver’s license. Those between the ages of 18 and 21 are restricted to intrastate driving. Individuals must be 21 years or older to receive their Hazmat, School Bus, or Doubles/Triples Endorsements. All applicants must possess a DOT medical card issued by a FMCSA certified medical examiner in order to be eligible for their CDL.

Any applicants that fall under the following conditions are automatically disqualified from receiving a CDL.

  • Having more than one driver’s license.
  • Being disqualified for commercial driving privileges in another state.
  • Being convicted in the past two years of driving a commercial vehicle impaired.
  • Having a suspended, canceled, denied, or revoked driver’s license.

All Colorado residents who are seeking to get their commercial driver’s license must pass both one or more knowledge tests as well as a practical skills test.

Endorsements
T – Double And Triple Trailers
N – Tanker Vehicles
P – Passenger
S – School Bus
H – Hazardous Materials
X – Tanker With Hazmat

Hit the Open Road

colorado CDL License Test Tips

All applicants are required to take one or more knowledge tests to display their comprehension of the commercial driving law. Class A, B, and C applicants must complete a 50 question assessment. Class A applicants are responsible for completing an additional 20 questions all based on the subject of combination driving. Applicants seeking endorsements will be required to complete a knowledge test specific to the endorsement sought. The endorsement tests range between 20 and 30 questions. All applicants must receive a score of 80 percent or higher to pass a knowledge test.Applicants for a Colorado CDL must complete a skills test is order to receive their CDL. The skills assessment is comprised of an on-road test, vehicle inspection, and basic controls skills test. Applicants who are applying for endorsements are required to complete the skills test with the type of vehicle the endorsement is intended for.

Additional Information

Information on the Colorado Division of Motor Vehicles

The State of Colorado Department of Revenue Division of Motor Vehicles regulates the CDL requirements and testing in Colorado. To get more information contact them via:

Website:  https://www.colorado.gov/pacific/dmv/im-commercial-driver

Phone:  303.205.5600

 

Additional Colorado CDL Helpful Links

Please use the links below to access more valuable Colorado CDL testing resources and to learn more about practice driving tests for the state of Colorado.