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  • Updated for March 2025
  • Based on 2025 UT commercial driver's license manual

Free UT CDL Pre-Trip Inspection Practice Exam 2025

A pre-trip inspection of your commercial vehicle is required by federal regulation 49 CFR § 396.13 and is important for protecting your passengers or cargo, fellow motorists, and yourself. Commercial vehicles are not allowed to travel on public roads until this inspection is completed. If you plan to drive through the Wasatch Mountains on Highway 6, you want to be sure your vehicle is operating safely. Using a checklist that includes the main systems and components of your vehicle, such as the battery, tires, mirror, and headlights, can alert you to any safety issues that could lead to accidents or strand you on the road. During your training to apply for a Utah Commercial Learner’s Permit (CLP), you should spend some time studying pre-trip inspections. You will find spending this time beneficial to earning a Utah Commercial Driver’s License (CDL).

Our Utah DMV CDL Pre-Trip Inspection Practice Test helps you learn how to conduct this safety measure. You will learn in a simulated testing environment that assesses your current knowledge level and tracks your progress. This approach is useful in preparing to pass the DMV CDL General Knowledge Test, which is one of the few requirements for a CLP. The official knowledge test requires you to answer 80% of the 20 questions correctly to earn a passing score. You will improve your chances of meeting this requirement by becoming proficient in pre-trip inspections because you will see questions about them on the official knowledge test.

Although you will find various on-line resources to teach you about pre-trip inspections, this CDL Pre-Trip Inspection Practice Test uses the most reliable and authoritative information. It is a comprehensive method that supports expanding your knowledge base in a time-efficient way. The practice test contains 20 multiple-choice questions, similar to those on the official knowledge test, to assess your understanding of pre-trip inspections and correct your misconceptions. If you get a question wrong, the practice test will provide a detailed explanation of the correct answer. This information comes from the Utah DMV CDL driver’s manual (Utah CDL Handbook 2025} and is up to date as of March 2025. In comparison, study guides will limit your learning potential by training you to memorize the answers to the questions. Unless you can understand the reasoning behind the answers, you will not be thoroughly prepared for the official knowledge test. The practice test will equip you with the information and confidence to answer pre-trip inspection questions correctly. Safe travels are too important to settle for anything less than the practice test.

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  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements

What you need to know

5 out of 5 • 3 votes
6 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.

What to expect on the actual UT DMV exam

20

questions

16

correct answers to pass

80%

passing score

List of questions (classic view)

  1. What structure supporting the fifth wheel skid plate should be checked for cracks or breaks?
  2. You pump the pedal three times and hold it down for five seconds, making sure that the pedal does not move. What are you inspecting?
  3. What transmits power from the transmission to the drive axle?
  4. What carries air or hydraulic fluid to the wheel brake assembly?
  5. ________ are gas or hydraulic devices that cushion the vehicle's ride and stabilize the vehicle.
  6. What is the sliding mechanism and locking device for tandem axles on trailers?
  7. What do you inspect to make sure that all are present and show no signs of looseness such as rust trails or shiny threads?
  8. What should you check to be sure it is solid, clear of objects, and securely bolted to the tractor frame?
  9. What maintains air pressure in the air brake system?
  10. Which tires should have a minimum tread depth of 4/32 inch?
  11. Which of the following can disengage the engine from the drivetrain?
  12. What transforms steering column action into wheel action?
  13. Make sure that the _________ are not cut, chafed, spliced, or worn, and not tangled, pinched, or dragged against tractor parts.
  14. You are looking for puddles on the ground and dripping fluids on the underside of the engine and transmission. What are you checking for?
  15. What should be fully engaged with no loose or missing pins in the slide mechanism of the sliding fifth wheel?
  16. To improve visibility during severe or stormy weather, __________ must be secure, undamaged, and operating smoothly and correctly.
  17. _________ should be clean with no dirt, illegal stickers, obstructions, or damage.
  18. _________ are the brackets, bolts, or bushings that are used to attach the spring or air bag to the axle and vehicle frame.
  19. If the wheel has a sight glass, check that the oil level is adequate. Otherwise, look for leaks around the
  20. What releases the fifth wheel locking jaws so the trailer can be coupled?
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