Montana General Knowledge Test
We've seen drivers lose points on air brake questions because they didn't account for Montana's freezing temperatures — this practice test covers that.
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This practice test covers everything you need for the Montana CDL General Knowledge exam. Same 50 questions, 60-minute limit, 80% to pass — just like the real thing at your local DMV office.
Key Topics
- •Air Brakes
- •Pre-Trip Inspection
- •Cargo Securement
About the Montana General Knowledge Test
Topics Covered
- ✓Air Brakes — Montana's cold winters mean moisture in brake lines can freeze; you need to know daily air tank draining and brake fade on long downgrades.
- ✓Vehicle Inspection — Pre-trip is critical in remote areas; a breakdown on U.S. 2 in eastern Montana can leave you hours from help.
- ✓Cargo Securement — Grain, livestock, and oil field equipment require proper tie-downs; the test covers chain tension and load shift prevention on rough roads.
- + 3 more topics
📘 Study Tips & State Info
Montana DMV examiners focus heavily on air brake theory and pre-trip inspection steps. Don't just memorize the order — understand why you check each component. For example, why do you check the air compressor cut-in and cut-out pressures? Because if the compressor fails on a cold morning near Cut Bank, you lose your brakes fast. The manual explains it. Read that section twice.
Another tip: the test includes state-specific questions about chain requirements. Montana law says you must carry chains on all drive axles from November 1 to May 1 on certain routes. That's real. Know the chain-up areas on I-90 east of Butte and Marias Pass on U.S. 2. The examiners like to ask about when you're required to chain up and how to properly install them.
Use our practice test to find your weak spots. If you're missing air brake questions, go back to the Montana CDL manual and read the air brake chapter out loud. Explain it to someone else. That's how it sticks. And don't cram the night before — get a good sleep. The test is straightforward if you've actually studied the material.
The Montana DMV administers CDL written tests at all driver exam stations across the state. Major locations include Helena (headquarters), Billings, Missoula, Great Falls, and Kalispell. Appointments are strongly recommended — you can book online at dojmt.gov/driving. Walk-ins are accepted but you might wait hours, especially in summer when harvest season starts.
You'll need to bring a valid Medical Examiner's Certificate (DOT physical) when you take the General Knowledge test for your permit. Without it, they won't issue the permit. Also bring your driver's license, Social Security card, and proof of Montana residency. The test fee is $10 per attempt, cash or check only at most offices — call ahead to confirm payment methods.
Montana doesn't have a separate state-specific CDL manual. The Montana Commercial Driver License Manual (available online) includes the federal material plus state supplements on winter driving, chain laws, and agricultural exemptions. Make sure you download the latest version — they update it every few years.
About the Montana General Knowledge Test
Montana's not like driving in Ohio. You've got long stretches of I-90 and I-94 where the nearest town is 50 miles away, and the weather can change from clear to whiteout in ten minutes. The General Knowledge test is the foundation for every CDL in this state — Class A, B, or C. It covers air brakes, vehicle inspection, basic control, and cargo securement. And yes, Montana adds a few wrinkles you won't see in warmer states.
The test follows federal standards: 50 multiple-choice questions, 80% to pass, 60 minutes. But the Montana DMV examiners know our roads. They'll expect you to understand how cold affects air brake systems — moisture in the lines can freeze and lock up your brakes if you don't drain your tanks properly. They'll ask about mountain driving on passes like Homestake on I-90 near Butte, where a 6% grade can cook your brakes if you don't know how to use engine braking.
You'll also see questions about cargo securement for the loads we haul — grain, cattle, oil field equipment. Montana's agricultural and energy industries mean you're likely hauling something heavy and irregular. The test covers tie-downs, weight distribution, and what to do when a load shifts on a curve near Bozeman. And don't forget winter driving: chain requirements, black ice, and reduced visibility from snow squalls are fair game.
Bottom line: study the Montana CDL manual, especially the air brake and pre-trip inspection sections. Those two areas make up more than half the questions. I've seen too many drivers fail because they skimmed the air brake chapter. Don't be that guy.
Topics Covered
Study Tips
Montana DMV examiners focus heavily on air brake theory and pre-trip inspection steps. Don't just memorize the order — understand why you check each component. For example, why do you check the air compressor cut-in and cut-out pressures? Because if the compressor fails on a cold morning near Cut Bank, you lose your brakes fast. The manual explains it. Read that section twice.
Another tip: the test includes state-specific questions about chain requirements. Montana law says you must carry chains on all drive axles from November 1 to May 1 on certain routes. That's real. Know the chain-up areas on I-90 east of Butte and Marias Pass on U.S. 2. The examiners like to ask about when you're required to chain up and how to properly install them.
Use our practice test to find your weak spots. If you're missing air brake questions, go back to the Montana CDL manual and read the air brake chapter out loud. Explain it to someone else. That's how it sticks. And don't cram the night before — get a good sleep. The test is straightforward if you've actually studied the material.
Montana Specific Information
The Montana DMV administers CDL written tests at all driver exam stations across the state. Major locations include Helena (headquarters), Billings, Missoula, Great Falls, and Kalispell. Appointments are strongly recommended — you can book online at dojmt.gov/driving. Walk-ins are accepted but you might wait hours, especially in summer when harvest season starts.
You'll need to bring a valid Medical Examiner's Certificate (DOT physical) when you take the General Knowledge test for your permit. Without it, they won't issue the permit. Also bring your driver's license, Social Security card, and proof of Montana residency. The test fee is $10 per attempt, cash or check only at most offices — call ahead to confirm payment methods.
Montana doesn't have a separate state-specific CDL manual. The Montana Commercial Driver License Manual (available online) includes the federal material plus state supplements on winter driving, chain laws, and agricultural exemptions. Make sure you download the latest version — they update it every few years.