Oregon Doubles and Triples Test
You've driven I-84 through the Columbia Gorge — now prove you can handle the wind, the grades, and the coupling procedures that keep you out of the ditch.
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Oregon's Doubles & Triples test has 20 questions. You need 16 right to pass. Quit scrolling and start practicing.
Key Topics
- •Coupling sequence and safety
- •Wind and grade handling
- •Oregon route restrictions
About the Oregon Doubles and Triples Test
Topics Covered
- ✓Coupling and uncoupling — Oregon examiners drill the exact sequence. Miss a step and you could lose a trailer on the highway.
- ✓Trailer stability in crosswinds — the Gorge and the Gorge only. They ask how wind affects double and triple trailers differently.
- ✓Braking on mountain grades — you'll see questions about proper braking technique on I-5's Siskiyou Summit or US-26 over the Coast Range.
- + 3 more topics
📘 Study Tips & State Info
Oregon DMV examiners love the coupling procedure. They'll ask you the exact order — from backing under the trailer to locking the pintle hook. Memorize it step by step. Don't skip the air supply check.
Wind questions pop up a lot. Think about I-84 east of Portland. They'll ask what you do when a gust hits your rear trailer. The answer is usually slow down and steer into it, but they'll try to trick you with brake options.
Finally, know your Oregon route map. The test includes questions about which highways allow triples. Study the Oregon CDL manual's section on restricted routes. It's not hard, but you can't guess.
The Oregon DMV administers the Doubles and Triples test at most CDL testing locations. You'll need an appointment — walk-ins aren't guaranteed. Bring your Medical Examiner's Certificate and your CDL learner's permit. The test fee is $10, same as other endorsements.
Major testing offices include Portland (NE 122nd Ave), Salem (3550 Center St NE), Medford (2450 S Pacific Hwy), and Bend (2600 NE Twin Knolls Dr). Hours vary, so check the DMV website before you go. Some rural offices only do CDL testing certain days.
Oregon also requires a separate skills test for the doubles/triples endorsement if you don't already have a Class A CDL. The written test comes first. Pass that, then schedule your road test. Plan ahead — road test appointments can book out weeks in advance.
About the Oregon Doubles and Triples Test
If you're planning to pull double or triple trailers in Oregon, you need this endorsement. It's not optional. The Oregon DMW tests your knowledge of coupling, stability, and braking — and they expect you to know how those rules apply to our specific roads.
Think about the Columbia River Gorge on I-84. Crosswinds there can push a trailer sideways in a heartbeat. Or the grades on I-5 south of Grants Pass. Your doubles and triples handle differently than a single trailer. The test covers that.
Oregon allows doubles and triples on designated highways only. You'll get questions about where you can and can't run them. Plus, our logging industry means you might see heavy, uneven loads that change how your rig behaves. The examiners want you to think about all of it.
This practice test mirrors the real Oregon DMV exam. Same format, same topics. Use it to find your weak spots before you walk into the testing office.
Topics Covered
Study Tips
Oregon DMV examiners love the coupling procedure. They'll ask you the exact order — from backing under the trailer to locking the pintle hook. Memorize it step by step. Don't skip the air supply check.
Wind questions pop up a lot. Think about I-84 east of Portland. They'll ask what you do when a gust hits your rear trailer. The answer is usually slow down and steer into it, but they'll try to trick you with brake options.
Finally, know your Oregon route map. The test includes questions about which highways allow triples. Study the Oregon CDL manual's section on restricted routes. It's not hard, but you can't guess.
Oregon Specific Information
The Oregon DMV administers the Doubles and Triples test at most CDL testing locations. You'll need an appointment — walk-ins aren't guaranteed. Bring your Medical Examiner's Certificate and your CDL learner's permit. The test fee is $10, same as other endorsements.
Major testing offices include Portland (NE 122nd Ave), Salem (3550 Center St NE), Medford (2450 S Pacific Hwy), and Bend (2600 NE Twin Knolls Dr). Hours vary, so check the DMV website before you go. Some rural offices only do CDL testing certain days.
Oregon also requires a separate skills test for the doubles/triples endorsement if you don't already have a Class A CDL. The written test comes first. Pass that, then schedule your road test. Plan ahead — road test appointments can book out weeks in advance.