Alaska Doubles and Triples Test
Prepare for the challenges of hauling doubles along the Parks Highway and through Alaska's mountain passes.
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About the Alaska Doubles and Triples Test
Alaska’s roads aren’t like anywhere else. You might haul doubles from Anchorage up to Prudhoe Bay, crossing the Arctic Circle on the Dalton Highway. That drive brings snow, ice, and limited services. You need to know your rig inside and out.
Our practice test focuses on the questions Alaska drivers see most. You’ll learn about coupling procedures for rough terrain, air brake systems on long downgrades, and weight distribution for uneven loads. No fluff — just the facts you need for the DMV test.
Alaska’s trucking industry moves everything from oil field equipment to seafood. Triples are rare here due to road conditions, but doubles are common on major routes. You’ll also face unique rules like winter chain requirements and night driving restrictions. We prepare you for all of it.
Take this test anywhere — on your phone or computer. Each question includes an explanation so you understand the “why” behind the answer. Start now and build your confidence before test day.
What This Test Covers
- Air brakes – stopping on icy grades is a must in Alaska
- Coupling doubles – you’ll do it on uneven gravel lots
- Weight distribution – keep your load legal on Alaska’s scales
- Inspecting equipment – a blowout on the Glenn Highway is no joke
- Winter driving rules – chains, lights, and reduced speeds
- Alaska-specific endorsements – know what’s required for your route
Study Tips
Start with the Alaska CDL Handbook’s section on doubles and triples. Pay extra attention to the tables for maximum lengths and weight limits — Alaska’s numbers differ from the lower 48. Then test yourself with our practice questions to find your weak spots.
When you’re ready for the real exam, schedule your knowledge test at your local DMV. Anchorage, Fairbanks, and Juneau all offer the test. Bring your permit paperwork and pay the fee (check the DMV site for current amount). If you fail, you can retake it the next day — but we want you to pass the first time.
Don’t forget to study the air brake section too. Many Alaska CDL tests combine air brakes with doubles questions. Use our practice test to cover both at once.
Alaska DMV Information
Alaska’s DMV offices accept walk-ins, but appointments are recommended for CDL knowledge tests. You can book online through the Alaska DMV portal. Fees for the doubles/triples endorsement vary — currently around $40, but confirm on the official site.
You must pass a written knowledge test before you can take the skills test. The test covers Alaska-specific regulations, not just federal rules. For example, Alaska allows double trailers up to 75 feet overall length, but triples are only permitted on a few roads with special permits.
If you’re planning to haul oil field loads on the North Slope, you’ll also need a hazardous materials endorsement. Our practice test doesn’t cover that, but we have separate materials for it. Get your doubles endorsement first, then come back for the rest.
Frequently Asked Questions
Related Resources
Other Alaska CDL Practice Tests
Test Details
- State: Alaska
- Test: Doubles and Triples Test
- Questions: 93
- Passing Score: 80%
- Time Limit: 25 minutes
- Cost: Free
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Start Free ELDT TrainingQuick Topics
- Air brakes
- Coupling & uncoupling
- Alaska weight limits & permits