Knowledge Test Class A #1
Class A Driving Test | Colorado 2025 #1 Page 7 of 7
Train for FREE online with our Colorado class A license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a CO CDL class A permit in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class A requirements may vary from state to state.
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43 . Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?
Littering
There are a number of crimes that will disqualify a person from receiving a hazardous materials endorsement for seven years. Among these offenses are arson, robbery, and crimes of dishonesty, fraud, or misrepresentation. More serious crimes, such as murder, result in a lifetime disqualification.
44 . While driving, if you notice anything affecting safety or mechanics, you should:
Not use that part of the vehicle and hope others don't notice the problem.
At the end of each day of driving, you may be required to make a written report on the vehicle or vehicles driven. Be sure to make note of any issues that could affect the safety of the vehicle or that could lead to a mechanical breakdown.
45 . The air entering air storage tanks may contain:
Antifreeze.
The air that enters air storage tanks in an air brake system usually contains a certain amount of water and compressor oil. Because accumulations of these materials can damage the braking system, tanks are equipped with drains to allow their removal.
46 . While driving:
You may read text messages.
While driving, sending and reading text messages is prohibited. You may not hold a phone to make a call or press more than one button when dialing.
47 . A cargo of hanging meat:
Is discouraged during the summer months.
An operator should drive with care when transporting a cargo of hanging meat. Such a load is unstable, both because it has a high center of gravity and because the swinging of the meat can affect the driver's handling of the vehicle.
48 . To inspect slack adjusters on S-cam brakes, you need to:
Chock the wheels and disengage the parking brake.
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
49 . Rims with welding repairs:
Are acceptable in combination vehicles.
A driver should inspect wheels before a drive, specifically looking for damage on the wheels and rims. Wheels or rims that have had welding repairs are not safe for use.
50 . How much water must be present for a vehicle to hydroplane?
None
Hydroplaning is a phenomenon during which a vehicle's tires lose traction with the road surface and begin to glide along on water on the road. There does not have to be a large amount of water on the road for this to occur.
See the exact questions that will be on the 2025 Colorado DMV exam.
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Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2025 Colorado | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Colorado, you must already hold a valid CDL. You'll need to pass a knowledge test on handling large trucks with multiple trailers. After passing, the endorsement will be added to your CDL. Remember, this endorsement does not cover the operation of motorcycles or school buses.
To obtain a Colorado CDL Doubles/Triples license, you should first have a valid Colorado CDL. Then, you'll need to pass the Doubles and Triples endorsement test. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and handling. After passing the test, the endorsement will be added to your CDL.
While Colorado doesn't specifically require specialized training for a CDL Doubles/Triples endorsement, it's highly recommended. Training can ensure you're prepared for the knowledge test and safe operation of these vehicles. Experience driving a single trailer truck may also be beneficial, but isn't required. The key requirement is passing the endorsement knowledge test.
Yes, to obtain a CDL Doubles/Triples endorsement in Colorado, you must pass a written knowledge test. This exam focuses on the safe operation and handling of large trucks with multiple trailers. It's important to study thoroughly, using resources like the Colorado CDL Handbook, to ensure success on this test.
For the CDL Doubles/Triples endorsement in Colorado, you're not required to perform a skills or road test. The endorsement solely requires passing a written knowledge test. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and managing the vehicles on the road. Practical skills are important for safe driving but aren't formally tested for this endorsement.
No, it is not permissible to operate double or triple trailers in Colorado without a valid CDL Doubles/Triples endorsement. This endorsement is necessary to ensure that drivers have the specialized knowledge and skills required to safely operate such vehicles. Driving without the proper endorsement can result in legal penalties.
In Colorado, you can add the CDL Doubles/Triples endorsement to your existing commercial driver's license. You don't need to initiate a new application for a separate license. However, you must pass the written knowledge test specific to doubles/triples operation. After passing, the endorsement is added to your current CDL.
Yes, even with a CDL Doubles/Triples endorsement, Colorado drivers must adhere to specific rules. These include a maximum trailer length of 28.5 feet for each unit in a set of doubles, and the total weight of all units combined cannot exceed 80,000 lbs. Also, drivers must follow all federal and state transportation laws, including hours of service regulations.
In Colorado, the maximum legal weight for a vehicle, including double or triple trailers, is 80,000 pounds. The maximum length for a single trailer is 57 feet 4 inches. For double/triple trailers, the combined length should not exceed 100 feet. However, these restrictions may vary depending on road and bridge limits.
Yes, safety is paramount when operating double/triple trailers. Drivers must follow federal and state laws, including speed limits and hours of service regulations. They should also be well-versed in coupling and uncoupling procedures, inspecting the coupling system regularly. Additionally, they must understand the high rollover risk associated with these vehicles and ensure proper cargo distribution to prevent accidents.
