Based on 2024 CA commercial driver's license manual
Free California CDL Combination Practice Test 2024 | CA
Driving combination vehicles can be an integral part your commercial driving career. Before you can reach that point though, you’ll need to pass an exam from your local branch of the California DMV showing that you’ve mastered the specialized knowledge necessary to drive these vehicles safely. The following 30 questions are from the official 2024 California CDL Manual, and cover just combination vehicles to help you prepare for this specific DMV test. Good luck both now on the practice exam and on your real exam when the time comes!
Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Triple-checked for accuracy
What you need to know
9 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
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To prevent a rollover while driving a combination vehicle, the two most important things are
Which of the following is most likely to roll over?
To straighten out a jackknifing trailer, should you apply your hand brake?
Which of the following is the definition of "offtracking?"
Which of the following should you do if you want to back into a curved path on the driver's side?
Which of the following types of vehicle gets stuck on railroad crossings?
If you use the trailer hand valve while driving,
What does the trailer air supply control do?
Which of the following controls air in the service line?
Which of the following is NOT a purpose of the emergency air line?
When parking a vehicle that does not have spring brakes, you should use chocks
Where would you find the shut-off valves?
Which of the following could happen if you try to couple when the trailer is too high?
After coupling, how much space should there be between the lower and upper fifth wheel?
Which of the following is NOT part of inspecting the coupling?
To drive, how high do you need to raise the landing gear?
Which of the following is NOT a way to tell if your trailer is equipped with an antilock braking system (ABS)?
While uncoupling, what should you do AFTER you unlock the fifth wheel?
Which of the following is NOT part of checking that air is flowing to all trailers?
During a walkaround inspection of a combination vehicle, you should check to make sure that
Which of the following is NOT part of testing the tractor protection valve?
What is the best way to test the trailer service brakes?
During the coupling process, you have now locked the trailer onto the tractor and secured the vehicle. When you check the lower fifth wheel, you do NOT need to check
Which of the following is NOT true about an antilock braking system (ABS)?
What is the first step in coupling a tractor-semitrailer?
Loss of air pressure in the emergency line causes
Which of these statements is true?
If you cannot make a right turn without swinging into another lane, what should you do?
If there is a major leak in the _________, the tractor protection valve will close and the trailer emergency brakes will come on.
The rear wheels of which vehicle will off-track the most?
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Our commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
Written by Andrei ZakhareuskiUpdated over a week ago
At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.
Here's an inside look at how we maintain the highest quality in our practice tests.
Content Creation and Verification Process
Alignment with Official Manuals: Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration: We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation: Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
Rigorous Review Process: Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors.
User Feedback Mechanism: After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly.
Responsive Updates: In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.
Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.
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