COLORADO CDL PRACTICE TEST - GENERAL KNOWLEDGE

View instructions
The CDL general knowledge test is required to be taken by all CDL applicants. The Colorado CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Colorado CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual CO general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. Drivers should watch out for black ice when the temperature is ______ freezing and the road looks ______.
below; dry
below; wet
above; dry
above; wet
2. When approaching and driving through a work zone, you should:
use your 4-way emergency flashers or brake lights to warn drivers behind you.
observe the posted speed limits.
slow down.
All of the above.
3. You should be especially alert for drunk drivers:
in the morning.
around shopping areas.
in the early evening.
late at night.
4. Empty trucks require greater stopping distances. True or False?
False.
True, but only on wet surfaces.
False, but only for trucks built on or after March 1, 1998.
True.
5. Anti-lock brakes:
reduce the perception distance.
increase your stopping distance.
help you stop faster.
keep your brakes from locking up when you brake hard.
6. CMV drivers who are convicted of a second DUI offense will lose their CDL driving privileges for:
at least 1 year.
life.
at least 5 years.
at least 3 years.
7. To correct a drive-wheel braking skid, you should:
stop braking and countersteer.
release the clutch and press the accelerator at the same time, then countersteer.
fully apply the brakes until you stop.
steer into the skid.
8. Which of the following statements about tire failure is true?
If the steering feels heavy, it may be a sign one of the rear tires has failed.
It can take a few seconds for your vehicle to react, and you might think it was some other vehicle.
Any time you hear a tire blow, you would be safest to assume it is not yours.
All of the above.
9. In coming down steep downgrades, you should:
select an appropriate speed.
go slowly enough so your brakes don't get too hot.
use a low gear.
All of the above.
10. The air storage tanks:
are used to hold compressed air.
protects the tank and the rest of the system from too much pressure.
stop the compressor from pumping air.
are connected to the engine through gears or a v-belt.
 
Page 1 of 5
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More

Frequently Asked Questions

In Colorado, you must be at least 15 years old to apply for a minor instruction permit. Once you reach the age of 16 and have held the permit for 12 months, you become eligible for a minor license. Instead, if you are between 18 and 21 and already possess a permit, you can directly apply for a minor license. Finally, at the age of 21, you can obtain a class R driver's license.

To take the DMV written test in Colorado, you have three options:
  1. You can schedule an appointment online and take the test at any Colorado driver license office.
  2. You can contact an Arizona driving school.
  3. You can take the test at home using the official Colorado knowledge testing platform @HOME. Pre-register and take the test whenever you want. After passing, you'll be required to schedule an appointment to visit a Colorado driver license office and obtain your permit.
You need to bring the following required documents:
  • Proof of identity/lawful presence.
  • Two proofs of residence. Examples of acceptable documents include utility bills, credit card statements, or bank statements.
  • Proof of Social Security Number.

Extra documents for minors:
  • Certificate of driver education course completion (30 hours if you're between 15 and 15 ½, and either 30 hours or a 4-hour driver awareness program if you're 15 ½ to 16.
  • Driving Knowledge Test completion form from your driver education school (if applicable).
  • A parent, guardian, or Colorado driver over 21 must sign the Affidavit of Identity and the Affidavit of Liability and they must come with you to the appointment.
The DMV written test in Colorado is available in both English and Spanish. If you encounter difficulty reading, you can connect speakers to your computer, and the exam will be read aloud in either English or Spanish.

To prepare for the DMV written test, read the Colorado Driver’s Handbook. Pay attention to road signs, parallel parking, turning, passing a vehicle, yielding the right of way, etc. Verify your knowledge with our free practice tests or sign up for Premium, which offers extra resources to get ready for your exam.

The DMV written test consists of 25 questions, covering various aspects of road rules and safe driving practices. You have 60 minutes to complete it. Take your time during the test to make sure you understand the questions well.

You can make up to 5 mistakes on the DMV written test. To pass, you need to answer at least 20 questions correctly, achieving an 80% accuracy rate. Take your time to read each question accurately.
For new drivers under 18 years old, Colorado imposes specific restrictions:
  • They cannot drive unless accompanied by a licensed adult 21 or older in the front seat.
  • During the first six months, they cannot transport passengers under 21, except for a parent or adult over 21. After this period, one passenger under age 21 is allowed (except for medical emergencies).
  • Drivers and passengers must wear seat belts.
  • They cannot use a cell phone while driving, except for emergencies.
  • During the first year, drivers cannot operate a motor vehicle between midnight and 5 a.m., unless with an instructor, parent, or guardian. Exceptions include school/work travel, emergencies, and emancipated minors.
  • Driving after drinking alcohol is prohibited (Zero Tolerance law).

In Colorado, an instruction permit remains valid for three years. Now that you have your instruction permit, it's time to start practicing your driving skills before the road test.
If you fail your online DMV written test in Colorado, you can retake it as many times as necessary, but with a maximum of two attempts in a day. After the first attempt, an additional fee is required. If you choose to take the exam at a third-party location, you may be subject to extra fees imposed by that business. 

CO CDL Practice Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
Share This Online CDL Test
Rate this CDL Practice Test
4.7 out of 5
based on 404 votes