Back to Montana Tests Not Montana? Change state

Montana Combination Vehicles Test

Montana’s steep mountain grades and high winds demand you know your combination vehicle inside and out.

106

Questions

80%

To Pass

Minutes

106 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 Montana CDL handbook and FMCSA regulations.

About the Montana Combination Vehicles Test

Montana’s roads aren’t like the rest of the country. You’ll drive combination vehicles on I-90 through the Rocky Mountains, haul grain on US‑2 across the Hi-Line, or move oil field equipment on lonely two-lanes. Every mile brings steep grades, sudden wind gusts, and unpredictable weather.

That’s why the Montana Combination Vehicles test focuses on real skills. You need to know air brakes – they’re required for most combinations. You need to master coupling and uncoupling because you’ll do it at grain elevators and distribution yards. And you must understand weight distribution; Montana’s weight‑sensitive bridges won’t forgive mistakes.

Agriculture and energy drive Montana’s economy. Logging trucks, livestock haulers, and fuel tankers all demand precise handling. Your CDL endorsement proves you can handle those loads safely. This practice test gives you the questions you’ll actually see at the DMV.

Topics Covered

✓Air brakes – you’ll use them on every Montana mountain pass.

✓Coupling and uncoupling – expect to hook and unhook loads at busy grain terminals.

✓Towing stability – high winds on the Hi-Line can push an unstable trailer.

✓Weight distribution – Montana’s seasonal weight restrictions require careful loading.

✓Pre‑trip inspection – winter temperatures mean more failures; check everything.

✓Emergency procedures – know how to stop a jackknife on icy I‑94.

Study Tips

Start with the Montana CDL Handbook. It’s free from any DMV office or online. Read the Combination Vehicles chapter twice – once for basics, once for Montana-specific rules like oversize load permits and seasonal weight limits.

Use practice tests like this one to find your weak spots. Don’t memorize answers; understand why each answer works. On test day, arrive early at your Montana DMV office. Bring your medical certificate, proof of residency, and payment for the $30 written test fee. You can schedule your appointment online at dojmt.gov to save time.

Montana Specific Information

Montana offers the Combination Vehicles endorsement written test at all major DMV offices: Helena (state headquarters), Billings, Missoula, Great Falls, and Bozeman. Appointments are recommended – walk‑ins are accepted but you might wait. The written test costs $30 and requires a passing score of 80%.

After you pass the written test, you’ll need a skills test in a real combination vehicle. Montana requires you to bring your own truck and trailer (or use a rental). The skills test takes about an hour and covers pre‑trip, basic control, and road driving. Schedule it through a third‑party tester or at a state‑run facility. Bring your CDL permit and medical card.

Frequently Asked Questions

Do I need a written test for a Combination Vehicles endorsement in Montana?

Yes. You must pass the Combination Vehicles written test to add the endorsement to your CDL. The test has 20 questions; you need at least 80% to pass.

How long is the Combination Vehicles endorsement valid?

It’s valid as long as your CDL is valid – usually 5 years in Montana. You’ll renew it when you renew your license. No separate renewal fee.

Can I use my own truck and trailer for the skills test in Montana?

Yes. Montana requires you to provide your own combination vehicle for the skills test. It must be properly registered, insured, and pass a basic safety inspection. You can also rent one from some third‑party testers.

What are Montana-specific rules for combination vehicles on icy roads?

Montana law requires chains or other traction devices on all axles of a combination vehicle when conditions warrant. You must also reduce speed on curves and keep extra following distance – state patrol officers watch for unsafe winter driving.

Where do I take the CDL skills test in Montana?

You can take it at a Montana DMV office (limited locations) or through a certified third‑party tester. Popular third‑party locations include Billings, Great Falls, and Bozeman. Check the Montana DMV website for a list of approved testers near you.

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

Last verified: August 2026 · FMCSA-compliant content