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North Dakota Doubles and Triples Test

Triple trailers are common on U.S. Highway 2 in western North Dakota's oil country.

Questions

80%

To Pass

Minutes

93 questions · 25 min time limit · 80% to pass

Opens in a practice window — choose your mode inside.

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026

All questions sourced from the official North Dakota CDL handbook and FMCSA regulations.

About the North Dakota Doubles and Triples Test

North Dakota's wide-open highways mean you'll see lots of doubles and triples. These combinations haul grain, oil equipment, and livestock across the state. You'll face strong crosswinds on I-94 and icy conditions in winter. The ND DMV expects you to know coupling, inspections, and emergency procedures for these rigs.

Our practice test uses real questions from the North Dakota CDL manual. You'll learn to handle tricky situations like coupling on uneven gravel roads or braking before a long downhill on US-2. We explain every answer so you understand the reasoning, not just memorize.

Don't waste time on generic tests. This one's built for North Dakota's specific rules and roads. You'll get comfortable with the 20-question format and the 80% passing score required by the state. Each attempt gives you fresh questions from our bank.

Pass your first try or keep practicing for free. No sign-ups, no hidden fees. Just honest preparation for your North Dakota CDL endorsement.

Topics Covered

✓Coupling and uncoupling – critical for heavy grain loads on rural roads

✓Weight distribution – oil field hauling on uneven terrain affects stability

✓Braking distances – winter conditions on I-29 make this essential

✓Speed limits – vary from 65 to 75 on ND interstates, plus posted limits for trucks

✓Inspecting trailer connections – avoid accidents on rough gravel roads and farm lanes

✓Handling high winds – common across the plains, especially near the Missouri River

Study Tips

Study the North Dakota CDL manual's doubles and triples section. Pay special attention to the air brake system – you'll need that for the skills test. Practice coupling in your own truck before the test. The DMV examiner will watch for correct sequence. Schedule your appointment early; test slots fill up fast in Bismarck and Fargo.

Use our practice test to find weak spots. Focus on questions you miss and review the explanations. North Dakota's DMV emphasizes pre-trip inspections, so don't skip those. Get plenty of rest the night before. You've got this.

North Dakota Specific Information

You can take the Doubles and Triples knowledge test at any North Dakota DMV office. Locations include Bismarck, Fargo, Grand Forks, Minot, and Williston. You must make an appointment online or by phone. The fee for the endorsement is $10. You'll also need a valid CDL and medical card. Bring your current license and social security card.

The skills test requires your own properly registered vehicle. You'll demonstrate coupling, uncoupling, and a road test. Appointments fill quickly during harvest season, so plan ahead. Walk-ins aren't guaranteed – always book ahead.

Frequently Asked Questions

What's the age requirement for a North Dakota Doubles/Triples endorsement?

You must be at least 21 to drive doubles or triples across state lines, but North Dakota allows intrastate hauling at 18 with a restricted CDL.

Do I need a separate test for doubles vs triples?

No, North Dakota has one combined Doubles and Triples endorsement test. Pass it and you're good for both.

Can I take the test online?

Currently, North Dakota DMV offers in-person knowledge testing only. You must visit a driver license site.

How many questions are on the North Dakota doubles and triples test?

The test has 20 multiple-choice questions. You need 16 correct to pass (80%).

Do I need my own truck for the skills test?

Yes, you must provide the vehicle you plan to use for the skills test. It must be properly registered and inspected.

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026 · FMCSA-compliant content