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  • Updated for January 2025
  • Based on 2025 WY commercial driver's license manual

Free Wyoming CDL Permit Practice Test: General Knowledge 2025

We think you’ll like our free Wyoming CDL permit practice test! This practice test will help you study for the official CDL General Knowledge test on commercial driving theory, which is a necessary step toward obtaining a Commercial Learner’s Permit (CLP). You should start reading the official Wyoming commercial driver’s license manual (Wyoming CDL Handbook 2025) if you haven’t already done so. Then take this practice test. It will help you absorb all that material and become more accustomed to being tested on it. The practice test is based on the official state CDL manual, just like the official knowledge test. It’s up to date as of January, 2025 and has 50 multiple-choice questions. The questions on this practice test will assess your understanding of such topics as basic vehicle maneuvers, cargo management, emergency preparedness, and pre-trip inspections. However, this practice test differs from the official knowledge test in the extra learning aids it provides you with, including a hint and an explanation of the correct answer for each question, and an automated assistant for even more help.

Once you’ve obtained a Commercial Learner’s Permit (CLP), you’ll be able to legally practice commercial driving under supervision. By practicing commercial driving, you’ll become sufficiently good at it to pass the official skills test, a necessary step for you to obtain a Commercial Driver’s License (CDL). The skills test will evaluate you on performing basic vehicle maneuvers, a pre-trip inspection, and a road test.

Once you obtain a CDL and all the endorsements you need, you can begin your career as a full commercial driver. The most important sectors of Wyoming’s economy are mineral and energy production (mainly coal, oil, and natural gas) and tourism. Agriculture, while not as important as in the past, is still significant. Both agriculture and mineral and energy production are, of course, heavily dependent on truck transportation. Wyoming is home to many famous tourist attractions like Grand Teton National Park and Yellowstone National Park, which has created a demand for bus drivers to transport tourists.

One of the most important routes for long-haul truckers is Interstate 80 – but in winter, it can be dangerous because of high winds, ice, and snowstorms, especially near Laramie and Cheyenne. Other important commercial routes include Interstate 25, Interstate 90, and U.S. Route 287. U.S. Route 287 is used by many trucks carrying cargo between Wyoming and Colorado, but it’s marked by steep grades and sharp curves. Use caution when driving on it in bad winter weather.

Commercial Driver's License
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

What you need to know

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.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual WY DOT exam

50

questions

40

correct answers to pass

80%

passing score

List of questions (classic view)

  1. If you hold a CDL issued by another state, you must obtain a Wyoming CDL within ________ of becoming a resident of Wyoming.
  2. What can you do at an accident scene to help avoid another accident?
  3. Which of the following is NOT something you should check during a trip?
  4. What is the definition of a hazard?
  5. Starting the engine and inspecting the cab involves each of the following tasks EXCEPT
  6. The minimum tire tread depth for front tires is
  7. How can you start moving without rolling backward?
  8. Which of the following is a key steering component?
  9. How many hours of sleep per night does the average adult need to maintain alertness?
  10. Which of these is NOT part of the basic method for shifting up?
  11. Hazardous materials placards are
  12. How can you determine if your vehicle is equipped with an anti-lock braking system (ABS)?
  13. What is the best way to figure out how many seconds of following distance you have?
  14. While driving at night, which lights should you use as often as you can?
  15. You don't want to be a distracted driver, so you
  16. What is the gross vehicle weight (GVW)?
  17. The most important hand signal that you and a helper should agree on is
  18. Always try to back toward the driver's side because
  19. For how long will you lose your CDL driving privileges if you are convicted of a second DWUI offense in either a CMV or your private vehicle?
  20. If you are confronted by an aggressive driver, what should you do?
  21. How long does it take a typical tractor-trailer to clear a double railroad track?
  22. What will help a drunk sober up?
  23. If the engine is not overheated, is it completely safe to remove the radiator cap?
  24. Which is NOT one of the four basic skills that operating a commercial motor vehicle requires?
  25. In which of the following two situations should you downshift?
  26. How many tiedowns are required for a 20-foot load?
  27. When you start to drive down a steep downgrade, which of the following should influence your choice of speed?
  28. Which of the following statements about retarders are correct?
  29. What might happen if you swing wide to the left before you turn right?
  30. Letting the air out of hot tires
  31. Why is it important to use a helper when backing?
  32. You should put the starter switch key into your pocket while you perform the pre-trip inspection because
  33. To transport cargo safely, which of the following are you NOT responsible for?
  34. An anti-lock braking system (ABS) will
  35. What is a common cause of tire fires?
  36. Do empty trucks have the best braking?
  37. To help you stay alert and safe while driving, you should
  38. If you double your speed, how much more distance will it take to brake to a stop?
  39. How often must you stop to check your cargo while on the road?
  40. You should inspect wheel bearing seals for
  41. Where should you place your warning devices if you must stop on a one-way road or divided highway?
  42. On which of the following types of fires should you NOT use a B:C fire extinguisher?
  43. Before transporting a sealed load, you must check
  44. During your pre-trip test, when examining hoses with the instructor, you need to look for
  45. If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?
  46. On wet roads, you should reduce your speed by
  47. Why should you cover your cargo?
  48. Which of the following should you NOT do if you experience a tire failure?
  49. It has just reached freezing. Which of the following areas may be slippery?
  50. Total stopping distance equals
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