Wyoming General Knowledge Test
I-80 between Laramie and Rawlins doesn't care if you're ready — this test makes sure you are.
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Wyoming's General Knowledge test covers everything from air brakes to mountain driving. You need 40 out of 50 to pass — start practicing now.
Key Topics
- •Vehicle inspection in extreme cold
- •Mountain driving and brake management
- •Wyoming-specific weather hazards
About the Wyoming General Knowledge Test
Topics Covered
- ✓Vehicle inspection — Wyoming examiners expect you to know how cold weather affects tires and brakes. A frozen air line can kill your trip before it starts.
- ✓Basic control and shifting — Mountain grades on I-80 mean you need to pick the right gear before you crest the hill, not halfway down.
- ✓Air brakes — High-altitude air compressors work harder. Understand brake lag and fade on long descents like the one into Laramie.
- + 3 more topics
📘 Study Tips & State Info
Wyoming examiners don't mess around. They want to see you understand how your truck behaves in our conditions. Don't just memorize the manual — think about how each rule applies on I-80 east of Evanston when the wind is gusting to 60 mph. When the manual says 'reduce speed on downgrades,' picture the 6% grade near the Vedauwoo exit.
Focus on the pre-trip inspection. It's the foundation of the skills test, and it shows up in the written test too. In Wyoming, you'll check tire chains, defroster operation, and heater function — things a Florida driver never thinks about. Know the air brake system inside out. That includes how to test for leaks and how to use the parking brake in subzero temps.
Use the practice test to time yourself. You get 60 minutes for 50 questions — that's plenty, but don't dawdle. Mark questions you're unsure about and come back. And read every question twice. Wyoming's test writers sometimes throw in 'except' or 'not' to trip you up.
You can take the General Knowledge test at any WYDOT office in the state. The main ones are in Cheyenne, Casper, Rock Springs, Laramie, Gillette, Riverton, and Sheridan. Most offices don't require appointments for written tests, but call ahead — some smaller locations only do testing on certain days. You'll need your Social Security card, birth certificate or passport, and a current Medical Examiner's Certificate (DOT physical).
The fee for a Commercial Learner's Permit in Wyoming is $45 as of 2025. That covers the written test and the permit itself. If you fail the General Knowledge test, you can retake it the same day at most offices, but you'll pay a retest fee (usually $10). Don't expect a computer — Wyoming still uses paper tests in many offices. You fill in bubbles with a #2 pencil.
One thing that catches out-of-state drivers: Wyoming requires you to hold your CLP for at least 14 days before taking the skills test. And if you're under 21, you're restricted to intrastate driving only — no hauling across state lines until you turn 21. That's federal law, but Wyoming enforces it strictly.
About the Wyoming General Knowledge Test
Wyoming's not Kansas. You'll drive I-80 in a whiteout, cross the Continental Divide on I-25, and dodge elk on US-287. The General Knowledge test is your first real step toward a CDL here. It covers the basics every commercial driver needs — vehicle inspection, basic control, air brakes, and how to handle Wyoming's weather.
The test has 50 multiple-choice questions. You need 80% to pass. The Wyoming DMV follows federal standards, but they throw in local flavor: expect questions about braking on long downgrades (think I-80 coming down from Sherman Summit) and controlling a skid on ice. If you've driven Wyoming winters, you know what I mean.
You'll take this test when you apply for your Commercial Learner's Permit (CLP) at any WYDOT office. Bring your medical card, proof of identity, and the fee. No appointment needed at most offices, but call ahead — some smaller offices have limited hours.
This practice test mirrors the real thing. Same number of questions, same time limit (60 minutes), same passing score. Use it to find your weak spots before you walk into that office in Cheyenne, Casper, or Rock Springs.
Topics Covered
Study Tips
Wyoming examiners don't mess around. They want to see you understand how your truck behaves in our conditions. Don't just memorize the manual — think about how each rule applies on I-80 east of Evanston when the wind is gusting to 60 mph. When the manual says 'reduce speed on downgrades,' picture the 6% grade near the Vedauwoo exit.
Focus on the pre-trip inspection. It's the foundation of the skills test, and it shows up in the written test too. In Wyoming, you'll check tire chains, defroster operation, and heater function — things a Florida driver never thinks about. Know the air brake system inside out. That includes how to test for leaks and how to use the parking brake in subzero temps.
Use the practice test to time yourself. You get 60 minutes for 50 questions — that's plenty, but don't dawdle. Mark questions you're unsure about and come back. And read every question twice. Wyoming's test writers sometimes throw in 'except' or 'not' to trip you up.
Wyoming Specific Information
You can take the General Knowledge test at any WYDOT office in the state. The main ones are in Cheyenne, Casper, Rock Springs, Laramie, Gillette, Riverton, and Sheridan. Most offices don't require appointments for written tests, but call ahead — some smaller locations only do testing on certain days. You'll need your Social Security card, birth certificate or passport, and a current Medical Examiner's Certificate (DOT physical).
The fee for a Commercial Learner's Permit in Wyoming is $45 as of 2025. That covers the written test and the permit itself. If you fail the General Knowledge test, you can retake it the same day at most offices, but you'll pay a retest fee (usually $10). Don't expect a computer — Wyoming still uses paper tests in many offices. You fill in bubbles with a #2 pencil.
One thing that catches out-of-state drivers: Wyoming requires you to hold your CLP for at least 14 days before taking the skills test. And if you're under 21, you're restricted to intrastate driving only — no hauling across state lines until you turn 21. That's federal law, but Wyoming enforces it strictly.