Montana · CDL

Montana CDL Practice Test

The Montana CDL knowledge test is administered by Montana Department of Justice, Motor Vehicle Division. This free practice test covers the 10 areas the Montana Commercial Driver License Manual teaches, from montana cdl classes permits testing and driver qualifications to hazardous materials and school bus safety, with 100 questions written for Montana and every answer explained. Pick 25, 50, or 100 questions and start; there is no sign-up.

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Take the Montana CDL practice test

The Montana bank holds 100 questions written for the Montana Commercial Driver License Manual (Revised: June 2026), 1 of them illustrated with a sign, signal, marking, or road scene. Choose a Quick check of 25, a Practice run of 50, or the Full challenge of 100 on the next screen, then choose coaching mode, which explains every answer as you go, or exam mode, which holds the explanations until the end and still shows your running score. It is free, there is no sign-up, and a test in progress is saved on this device.

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Sample questions

Six questions from the Montana bank, with the rule behind each answer

Sample 1 · Montana Cdl Classes Permits Testing And Driver Qualifications

For a Billings commercial-credential plan, a Montana tractor and semitrailer have a combined rating of 29,600 pounds. The semitrailer is rated at 11,200 pounds. Which license class matches those ratings?

  1. For the planned duty near Billings: class A applies to this heavy combination with a towed unit above 10,000 pounds GVWRCorrect
  2. For the planned duty near Billings: class B applies because a semitrailer is treated as part of one straight vehicle
  3. For the planned duty near Billings: class C applies whenever the combination remains below 30,000 pounds
  4. For the planned duty near Billings: no CDL applies unless the semitrailer itself reaches 26,001 pounds

Why: Class A covers a combination rated at least 26,001 pounds when the towed vehicle or vehicles have a gross vehicle weight rating above 10,000 pounds. In the described Montana setting, that supports "For the planned duty near Billings: class A applies to this heavy combination with a towed unit above 10,000 pounds GVWR".

Sample 2 · Speed Space Hazards Weather And Railroad Crossings

On a commercial highway run near Billings, a motorcycle appears far behind in a convex mirror, but its image grows quickly. What limitation of that mirror should influence the lane-change decision?

  1. On the highway outside Billings: convex images look smaller and farther away, so distance must be judged cautiously with brief checksCorrect
  2. On the highway outside Billings: convex images exaggerate closeness, so the motorcycle is certainly farther back
  3. On the highway outside Billings: a long stare turns a convex mirror into an exact distance-measuring device
  4. On the highway outside Billings: convex mirrors show only stationary objects and cannot display the motorcycle's approach

Why: Mirror checks should be brief, and convex mirrors require judgment because they make objects appear smaller and farther away than they are. In the described Montana setting, that supports "On the highway outside Billings: convex images look smaller and farther away, so distance must be judged cautiously with brief checks".

Sample 3 · Cargo Inspection Weight Balance And Securement

As a load is finalized in Billings, a sealed trailer arrives from a shipper whose employees loaded it. What cargo duties still belong to the driver before and during movement?

  1. For the load prepared in Billings: inspect as permitted, recognize overload or imbalance, confirm securement, preserve visibility, and keep emergency access clearCorrect
  2. For the load prepared in Billings: accept every loading condition because the shipper sealed the doors
  3. For the load prepared in Billings: check only the delivery address and transfer all safety responsibility to dispatch
  4. For the load prepared in Billings: assume the carrier owns the cargo and therefore the driver has no duty

Why: Even when another person loads the vehicle, the driver remains responsible for inspection, overload and balance recognition, securement, clear visibility, and access to emergency equipment. In the described Montana setting, that supports "For the load prepared in Billings: inspect as permitted, recognize overload or imbalance, confirm securement, preserve visibility, and keep emergency access clear".

Sample 4 · Passenger Vehicle Inspection Loading And Operation

While passenger equipment is prepared in Billings, before accepting a bus, the new operator sees two defects on the outgoing driver's report. What must precede the new operator's signature?

  1. For the passenger trip from Billings: passengers vote on whether the defects need attention
  2. For the passenger trip from Billings: the report is discarded because a different operator is taking over
  3. For the passenger trip from Billings: each listed defect must be certified repaired or certified as not requiring repairCorrect
  4. For the passenger trip from Billings: the new operator signs first and asks about repairs after the route

Why: A bus driver signs the previous driver's inspection report only after listed defects have been certified as repaired or certified as not requiring repair. In the described Montana setting, that supports "For the passenger trip from Billings: each listed defect must be certified repaired or certified as not requiring repair".

Sample 5 · Combination Vehicle Control Coupling And Inspection

Before a tractor-trailer leaves Billings, a semitrailer's load is piled high and concentrated near the curb side. Which rearrangement addresses both sources of instability?

  1. For the tractor-trailer near Billings: move the entire load behind the rear doors without centering it
  2. For the tractor-trailer near Billings: preserve the loading pattern and compensate with faster turns
  3. For the tractor-trailer near Billings: lower the freight, center it laterally, and spread its weight through the trailerCorrect
  4. For the tractor-trailer near Billings: raise the pile and add more cargo to the curb side

Why: Combination cargo should be kept low, centered, and distributed because a high or side-biased center of gravity increases rollover risk. In the described Montana setting, that supports "For the tractor-trailer near Billings: lower the freight, center it laterally, and spread its weight through the trailer".

Sample 6 · Hazardous Materials And School Bus Safety

For a regulated assignment beginning in Billings, at pickup, one hazardous-material carton leaks and several shipping papers are incomplete. What must the driver do before accepting the shipment?

  1. For the regulated assignment in Billings: place the leaking carton in the cab and remove the vehicle placards
  2. For the regulated assignment in Billings: discard all papers because package labels replace documentation
  3. For the regulated assignment in Billings: reject improperly prepared or leaking packages and ensure required papers and placards are correctCorrect
  4. For the regulated assignment in Billings: accept the load and write missing information after reaching the consignee

Why: The hazardous-material driver rejects leaking or improperly prepared packages, maintains required placards and papers, and transports the shipment safely after shipper and carrier checks. In the described Montana setting, that supports "For the regulated assignment in Billings: reject improperly prepared or leaking packages and ensure required papers and placards are correct".

What is on the test

The 10 topics the Montana CDL practice test covers

These are Montana's own topic areas, from montana cdl classes permits testing and driver qualifications to hazardous materials and school bus safety, each with 10 questions. Under each one are two questions from the bank, shown without their answers; the practice test explains every one of them.

  1. Montana Cdl Classes Permits Testing And Driver Qualifications10 questions
    • For a Missoula commercial-credential plan, consider a 27,900-pound-GVWR box truck towing a 9,700-pound-GVWR utility trailer. Into which CDL class does that configuration fall?
    • For a Great Falls commercial-credential plan, a community van is designed for fourteen riders, an attendant, and the driver, yet it is too light for Classes A and B. What brings it under CDL passenger rules?
  2. Vehicle Inspection Control Visibility And Communication10 questions
    • Before a Billings vehicle-condition check, an inspector discovers a cracked steering component and places the vehicle out of service. What purpose of inspection does this demonstrate?
    • Before a Missoula vehicle-condition check, a normally quiet drive axle begins humming, the cab smells hot, and one gauge drifts upward. Which clues belong in the driver's en-route assessment?
  3. Speed Space Hazards Weather And Railroad Crossings10 questions
    • On a commercial highway run near Missoula, a bus signals before moving from the curb but the driver switches the signal off halfway into the lane. What would complete the signal correctly?
    • On a commercial highway run near Great Falls, at 45 mph, a truck meets a sheet of water across a rain-soaked roadway. Which two effects make reducing speed important?
  4. Emergencies Abs Skids Crashes Fires And Driver Fitness10 questions
    • During an urgent safety response outside Billings, a pallet falls into the travel lane and an adjacent escape path is open. What steering pattern is appropriate for an emergency swerve?
    • During an urgent safety response outside Missoula, on dry pavement, a driver uses controlled braking and senses the wheels begin to lock. What immediate adjustment preserves control?
  5. Cargo Inspection Weight Balance And Securement10 questions
    • As a load is finalized in Missoula, a flatbed load was tight at departure. The truck has now traveled 47 miles. What checkpoint is approaching?
    • As a load is finalized in Great Falls, following the first cargo recheck, a driver covers 140 miles in two hours and then takes a meal break. When is another inspection due?
  6. Passenger Vehicle Inspection Loading And Operation10 questions
    • While passenger equipment is prepared in Missoula, an exterior baggage bay remains open after loading and a rear emergency door is ajar. May the bus depart?
    • While passenger equipment is prepared in Great Falls, a folded stroller blocks the stairwell, one seat shifts at its mount, and an exit indicator fails. Which items require attention?
  7. Air Brake Components Inspection And Use10 questions
    • At a Billings air-brake equipment review, a mechanic describes three separate air-brake functions. Which mapping is correct?
    • At a Missoula air-brake equipment review, the air compressor stops building pressure at the normal upper setting and restarts after pressure falls. Which device controls those points?
  8. Combination Vehicle Control Coupling And Inspection10 questions
    • Before a tractor-trailer leaves Missoula, a doubles driver notices that a modest tractor movement becomes progressively larger toward the last unit. Which combination-vehicle hazard explains that growth?
    • Before a tractor-trailer leaves Great Falls, why might an empty tractor-trailer or bobtail lock wheels sooner than a driver expects?
  9. Doubles Triples And Tank Vehicle Operation10 questions
    • While specialized equipment is prepared in Billings, when a triples combination changes direction too quickly, where is rearward amplification most likely to overturn a unit?
    • While specialized equipment is prepared in Missoula, one trailer in a twin set carries paper rolls and the other is nearly empty. Which coupling order offers better stability?
  10. Hazardous Materials And School Bus Safety10 questions
    • For a regulated assignment beginning in Missoula, a driver files hazardous-material papers in a closed cabinet behind the sleeper while underway. Why is that location unsuitable?
    • For a regulated assignment beginning in Great Falls, a shipping clerk places the packing group before the identification number in a basic hazardous-material description. Which order should replace it?
How to prepare

A study plan for the Montana CDL knowledge test

1

Find out where you stand

Take a Quick check of 25 in coaching mode. Read each explanation, including the ones you got right; it tells you the rule Montana tests, not just the answer.

2

Study the topics you missed

Your account's Study tab ranks the 10 topics by your results. Read that chapter of the Montana Commercial Driver License Manual, then take another Quick check to confirm the gap has closed.

3

Rehearse the real thing

Take the Full challenge of 100 in exam mode. Aim for 80 percent or better twice in a row; at that point you are answering from the rules, not from memory of the questions.

Questions

Montana CDL practice test questions

Is this the official Montana CDL knowledge test?

No. DMV Exam Pass is an independent study service and is not affiliated with Montana Department of Justice, Motor Vehicle Division. The questions are written in the style of the exam to prepare you for it; the official test is taken with the agency.

What does the Montana CDL practice test cover?

The 100 questions are spread evenly across 10 topics: Montana Cdl Classes Permits Testing And Driver Qualifications, Vehicle Inspection Control Visibility And Communication, Speed Space Hazards Weather And Railroad Crossings, Emergencies Abs Skids Crashes Fires And Driver Fitness, Cargo Inspection Weight Balance And Securement, Passenger Vehicle Inspection Loading And Operation, Air Brake Components Inspection And Use, Combination Vehicle Control Coupling And Inspection, Doubles Triples And Tank Vehicle Operation, and Hazardous Materials And School Bus Safety. Every test you take draws from all of them, so a weak area shows up quickly.

How many questions are in the practice test, and how long does it take?

The Montana bank holds 100 questions. A Quick check of 25 takes about ten minutes, a Practice run of 50 about twenty, and the Full challenge of 100 about forty. You can pause any time.

Are these the real questions from the Montana exam?

No. Nobody outside the agency has the real questions, and we do not use, claim, or advertise leaked or exact exam questions. These are independently written questions that test the same rules, so what you learn transfers to whatever the real test asks.

Which handbook should I study for the Montana CDL knowledge test?

The Montana Commercial Driver License Manual (Revised: June 2026), published by Montana Department of Justice, Motor Vehicle Division. Every question here is written for it, and each explanation names the rule, so when you miss a question you know which chapter to read.

What is the difference between coaching mode and exam mode?

Coaching mode shows whether each answer was right, and why, before you move on; it is for learning. Exam mode holds the explanations and the correct choices until the end and still shows your running score; it is for checking readiness. Both draw from the same bank, and scoring happens on our servers, so no answer key is loaded in your browser.

Does the practice test include road signs and pictures?

Yes. 1 of the 100 questions are illustrated with a sign, signal, marking, or road scene, the way the CDL knowledge test presents them.

Is the Montana practice test free, and do I need an account?

It is free, with no sign-up. An optional account saves your progress across devices and shows which topics need work.

Can I pause and come back later?

Yes. A test in progress is saved on this device and offered again when you return. With an account, it is saved to your account as well, so you can continue on another device.

What score should I aim for before test day?

Aim for 80 percent or better on a Full challenge in exam mode, more than once. The official passing score is set by the agency; scoring consistently above 80 here means you are answering from the rules rather than from luck.