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

A driver that hauls hazardous materials must attend training every:

2 / 40

What should you hear when you test the trailer brakes by opening the service air line at rear of trailer with the hand valve on?

3 / 40

You should make sure the_____before backing under a trailer.

4 / 40

When arriving at the destination announce:

5 / 40

How often should air tanks be drained?

6 / 40

Select the true statement in regards to if a glad hand on the blue air line is missing a seal.

7 / 40

Select the true statement about emergency steering and tankers:

8 / 40

Which of the following statements is true about speed management?

9 / 40

Which of the following is NOT something you need to know in order to determine if you need to use placards?

10 / 40

In what position should shut off valves on the rear of the last trailer be in on a set of double trailers?

11 / 40

Which of the following is NOT a part of the steering system?

12 / 40

Select the step that comes first:

13 / 40

Overhead inside mirror is used to:

14 / 40

Where are shut-off valves located?

15 / 40

How far before a railroad crossing should you stop your bus?

16 / 40

Signs of distracted drivers include:

17 / 40

Do converter dollies have spring brakes?

18 / 40

A shipment described on the Hazardous Waste Manifest may only be delivered to another _______ carrier or treatment facility, who then signs the ______, giving you a copy which you must keep.

19 / 40

Class A explosives must not be transported in a combination vehicle if the vehicle includes:

20 / 40

When backing, what is the best method to use to avoid blind spots?

21 / 40

Why does it take special skills to haul a tank vehicle?

22 / 40

Select the true statement in regards to large combination vehicles taking longer to stop.

23 / 40

Which of the following should you do when confronted by an aggressive driver?

24 / 40

Select the true statement about slack adjusters:

25 / 40

Select the statement that best explains the "crack-the-whip" effect.

26 / 40

The method for testing hydraulic brakes for leaks is to _____.

27 / 40

Carry-on baggage cannot be stored:

28 / 40

When driving in very hot temperatures, you should:

29 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

30 / 40

You should adjust all the outside left and right side convex mirrors to see:

31 / 40

The reason a bulk liquid tanker is hard to handle is:

32 / 40

How should you know when to shift?

33 / 40

Is it important to look into the back of the fifth wheel to see if the lockpin is locked in?

34 / 40

Bus drivers must have a CDL if they drive a vehicle:

35 / 40

Select how brakes work on long, steep downgrades:

36 / 40

Do empty trucks have the best braking?

37 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

38 / 40

Which two special conditions indicate that you should downshift?

39 / 40

Where are the two main places where the hazardous material identification number appears?

40 / 40

You are checking the_______when looking at the dipstick to see if the lubrication is at the safe operating range or above the refill line.

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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.