Washington General Knowledge Test

About the Washington General Knowledge Test

You're preparing for the Washington CDL General Knowledge test. That's smart. This test covers the basics every commercial driver needs. But Washington adds its own flavor. You'll face steep grades on I-90 near Snoqualmie Pass. You'll share the road with logging trucks in the Cascades. And you'll navigate ferry terminals in Puget Sound. Our practice test mirrors the real Washington DMV exam.

We built this test using the official Washington Commercial Driver Guide. It includes questions on vehicle inspection, basic control, and safe driving. But we also throw in Washington-specific scenarios. For example, how do you handle a runaway truck ramp on a mountain descent? What's the proper way to load farm equipment on a flatbed? These aren't just theoretical. They're the kind of questions you'll see in Washington.

You don't need to guess what to study. We highlight the topics that trip up most Washington drivers. Things like air brake adjustment for cold, wet roads. Or how to handle high winds on the Columbia River Gorge. Each question comes with an explanation. You'll learn why the right answer is right. And you'll spot your weak areas before test day.

Take the test as many times as you want. Track your progress. When you score 80% or higher consistently, you're ready for the real thing. No need to waste time or money on retakes. Let's get you that Washington CDL.

What This Test Covers

• Vehicle Inspection – Washington requires a thorough pre-trip check. You'll face questions about inspecting tires, brakes, and lights for mountain driving.
• Basic Control – Shifting, steering, and backing matter on tight ferry ramps and logging roads. This section tests your control skills.
• Air Brakes – Steep grades in the Cascades mean you must know brake lag, adjustment, and emergency procedures. Washington's wet climate makes this even more critical.
• Safe Driving – Washington drivers deal with rain, fog, and wildlife. This section covers speed management, following distance, and hazard perception.
• Cargo Handling – From apples to timber, Washington hauls diverse freight. Questions focus on proper load securement and weight distribution.
• Combination Vehicles – Doubles and triples are common on I-5. You'll learn coupling, uncoupling, and the special handling they need.

Study Tips

Start with the Washington Commercial Driver Guide. It's your official source. Read it cover to cover. Then take our practice test. Focus on questions you get wrong. Review those sections in the guide again. Washington's test draws heavily from the guide's sample questions, so don't skip them.

Schedule your written test at a Washington DMV office. You'll need to bring proof of identity, residency, and a valid medical certificate. The test costs $10 per endorsement. You can retake it the same day if you fail, but you'll pay again. Save yourself the hassle. Practice until you're comfortable.

Washington allows walk-ins at some locations, but appointments are faster. Check the Department of Licensing website for your nearest office. And remember: the General Knowledge test is just the first step. After you pass, you'll need a skills test. But for now, focus on these 50 questions. You've got this.

Washington DMV Information

You can take the Washington CDL written test at any department of licensing office. Some locations also offer third-party testing. Schedule an appointment online through the Washington DOL website. Walk-ins are accepted but you might wait longer. The General Knowledge test fee is $10. You can pay with cash, check, or card.

You'll need to bring several documents. A valid Washington driver's license or ID. Proof of Social Security number. Proof of residency (two documents showing your name and Washington address). A current DOT medical card if you plan to drive interstate. If you don't have one, you can still take the knowledge test, but you can't get your CDL without it.

After passing the General Knowledge test, you'll get a Commercial Learner's Permit (CLP). It's valid for 180 days in Washington. You can renew it once without retaking the knowledge test. Use your CLP to practice driving with a qualified supervisor. Then schedule your skills test. Washington uses both DOL and approved third-party examiners for the driving portion.

Frequently Asked Questions

Related Resources

Other Washington CDL Practice Tests

Test Details

• State: Washington
• Test: General Knowledge Test
• Questions: 140
• Passing Score: 80%
• Time Limit: 60 minutes
• Cost: Free

Need ELDT Training?

If you're getting your first CDL, you need ELDT theory training before your skills test.