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

Select the true statement about handling triples and doubles:

2 / 40

In Column 1 the symbol "I" means:

3 / 40

Select the best description of a baffle tank:

4 / 40

Which of the following hazard classes utilizes a transport index in order to determine how much of it can be loaded on a single vehicle for transport?

5 / 40

The blind spot behind the bus could extend to how many feet?

6 / 40

Select the action that is not recommended when driving on slippery roads:

7 / 40

Select the reason as to why air tanks need to be drained:

8 / 40

Check to ensure that____when inspecting the coupling.

9 / 40

This item should not be rusted, bent, or damaged and centered over evenly spaced tires and dual wheels.

10 / 40

Which of the following answers lists the three types of emergency equipment you must have on your bus?

11 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

12 / 40

You downshift automatic transmissions ______.

13 / 40

What is the most important reason for doing a school bus inspection?

14 / 40

Select the answer that is controlled by the foot brake.

15 / 40

_____ create a little above 90 degree angle between the adjuster arm and push rod when the brakes are released and no less than 90 degrees when the brakes are applied.

16 / 40

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

17 / 40

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

18 / 40

Select the correct setup for shut-off valves:

19 / 40

The parking brakes should be used____in air brake vehicles.

20 / 40

This object should be clean with no obstructions, illegal stickers or damage to the glass.

21 / 40

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

22 / 40

What does the amount of liquid you can carry depend on?

23 / 40

What type fire extinguisher is required in the power unit of a placarded vehicle?

24 / 40

The manual says you should look _____ ahead while driving.

25 / 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 _____.

26 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

27 / 40

What will probably happen if the converter dolly is still under the second trailer and the pintle hook is unhooked?

28 / 40

These tires should have a minimum tread depth of 4/32 inches.

29 / 40

How should the trailer be lined up when preparing to back the tractor up?

30 / 40

You should expect____when backing a tractor under a trailer.

31 / 40

Select the reason as to why you should not use the trailer hand valve while driving.

32 / 40

____is what can legally hold the parking brake or emergency brake in position for a bus, truck, or truck tractor.

33 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

34 / 40

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

35 / 40

A bus has a GVWR of 22,000 pounds and seats 24 passengers. What CDL class is this vehicle?

36 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

37 / 40

In column 1, the "D" symbol means:

38 / 40

Which of the following statements about bus evacuation is true?

39 / 40

You should check your tires every ____ or every ____ when driving in very hot weather.

40 / 40

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

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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.