Washington General Knowledge Test
If you can handle Snoqualmie Pass in January, this test is the easy part — but you still need to pass it first.
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This is the Washington CDL General Knowledge test. 50 questions, 80% to pass, 60 minutes — start practicing.
Key Topics
- •Vehicle inspection and air brakes
- •Mountain driving and chain laws
- •Basic control and accident reporting
About the Washington General Knowledge Test
Topics Covered
- ✓Vehicle inspection — Washington examiners want the full pre-trip, especially checking lights and brakes for wet-road conditions that dominate the state.
- ✓Basic control and space management — tight lanes on I-5 through construction zones and narrow ferry loading ramps demand precise positioning.
- ✓Shifting and gears — many Washington logging and farm trucks still run manual transmissions; you need to know rpm ranges and hill climbing.
- + 3 more topics
📘 Study Tips & State Info
Washington DOL examiners focus on practical, road-ready knowledge. They don't ask trick questions. They ask about situations you'll face on actual Washington roads. When the manual talks about reduced stopping distance on wet pavement, picture driving I-5 in November. When it covers chain installation, imagine chaining up at the Denny Creek chain-up area on I-90. Make that connection and the answers stick.
Pay extra attention to the pre-trip inspection section. Washington examiners love the details — air brake checks, coupling procedures, and ensuring lights and reflectors are clean and working. In a state where rain and road grime coat everything, clean lights aren't optional; they're survival. Also, know the Washington chain requirements: when chains are required, where chain-up areas are, and how to install them safely. That's a common test topic that catches out-of-state drivers.
Our practice test mirrors the real thing. Same question format, same time pressure. Use it to find your weak spots, then hit the Washington CDL manual for those areas. Don't just read — practice until the answers come automatically.
Washington DOL handles all CDL testing. You'll take the General Knowledge test at a DOL driver licensing office — appointments are strongly recommended. Walk-ins are accepted but you might wait hours. Find your local office at dol.wa.gov. The test costs $10, payable by card or cash. You need a valid Medical Examiner's Certificate (DOT physical) before you can take the skills test, but you don't need it for the knowledge test.
Washington requires all new CDL applicants to complete Entry-Level Driver Training (ELDT) starting February 7, 2022. That means you need a training certificate from an approved provider before you can take the skills test. The knowledge test can still come first. Also, if you're under 18, you're restricted to intrastate driving only — no crossing state lines.
One more thing: Washington has a unique ferry system. If your job involves driving commercial vehicles onto ferries, the General Knowledge test may include questions about loading and unloading procedures, weight distribution, and securing the vehicle. The manual covers it, but many drivers overlook that section. Don't be one of them.
About the Washington General Knowledge Test
The Washington CDL General Knowledge test covers the basics every commercial driver needs — vehicle inspection, basic control, shifting, backing, coupling, and accident procedures. But in Washington, those basics come with a local twist. You're not just learning rules for flat highways; you're preparing for I-5 through Seattle traffic, I-90 over the Cascades, and the ferry docks at Fauntleroy or Edmonds.
Washington's weather demands extra attention. Rain for months, snow and ice on mountain passes from November through April, and fog in the river valleys. The test questions reflect that reality. Expect questions about stopping distances on wet roads, proper use of chains, and how to handle a trailer when crosswinds hit on the Columbia River Gorge.
The Washington Department of Licensing (DOL) administers the test at local offices. You need a passing score of 80% — that's 40 out of 50 questions correct. The test is 60 minutes long. You can take it as part of your CLP application, and you'll need it before you move on to any endorsement tests or the skills exam.
Don't waste time memorizing truck specs from other states. Focus on what Washington examiners actually ask. That's what this practice test is for.
Topics Covered
Study Tips
Washington DOL examiners focus on practical, road-ready knowledge. They don't ask trick questions. They ask about situations you'll face on actual Washington roads. When the manual talks about reduced stopping distance on wet pavement, picture driving I-5 in November. When it covers chain installation, imagine chaining up at the Denny Creek chain-up area on I-90. Make that connection and the answers stick.
Pay extra attention to the pre-trip inspection section. Washington examiners love the details — air brake checks, coupling procedures, and ensuring lights and reflectors are clean and working. In a state where rain and road grime coat everything, clean lights aren't optional; they're survival. Also, know the Washington chain requirements: when chains are required, where chain-up areas are, and how to install them safely. That's a common test topic that catches out-of-state drivers.
Our practice test mirrors the real thing. Same question format, same time pressure. Use it to find your weak spots, then hit the Washington CDL manual for those areas. Don't just read — practice until the answers come automatically.
Washington Specific Information
Washington DOL handles all CDL testing. You'll take the General Knowledge test at a DOL driver licensing office — appointments are strongly recommended. Walk-ins are accepted but you might wait hours. Find your local office at dol.wa.gov. The test costs $10, payable by card or cash. You need a valid Medical Examiner's Certificate (DOT physical) before you can take the skills test, but you don't need it for the knowledge test.
Washington requires all new CDL applicants to complete Entry-Level Driver Training (ELDT) starting February 7, 2022. That means you need a training certificate from an approved provider before you can take the skills test. The knowledge test can still come first. Also, if you're under 18, you're restricted to intrastate driving only — no crossing state lines.
One more thing: Washington has a unique ferry system. If your job involves driving commercial vehicles onto ferries, the General Knowledge test may include questions about loading and unloading procedures, weight distribution, and securing the vehicle. The manual covers it, but many drivers overlook that section. Don't be one of them.