Free Montana CDL Practice Test — Updated for 2025

Getting your Commercial Driver’s License in Montana starts with the written knowledge tests. This page gives you free, simple Montana CDL practice tests for every major section: General Knowledge, Air Brakes, Combination Vehicles, Hazmat, Passenger, School Bus, Tankers, and Doubles/Triples. You’ll see one question at a time, get instant right/wrong feedback, and read a short explanation after each answer. Use these tests to learn the rules, fix weak spots fast, and build real confidence before you walk into your exam.

Montana CDL at a Glance (Plain-English Summary)

  • Age & eligibility:
    You must be 18+ for intrastate and 21+ for interstate, passenger, or hazmat driving.
  • Valid license & record:
    You need a current Montana driver’s license and a clean driving record.
  • Medical card:
    A valid DOT Medical Examiner’s Certificate is required for most CDL drivers.
  • Knowledge tests → CLP:
    Pass all required written tests for your CDL class (A/B/C) and endorsements to earn your Commercial Learner’s Permit (CLP).
  • Skills test:
    After holding your CLP for at least 14 days, take the three-part skills test (pre-trip, basic control, on-road).
  • ELDT:
    Federal Entry-Level Driver Training applies to new Class A/B and H/P/S applicants before the skills test.
  • Hazmat:
    Requires a TSA background check and passing the Hazmat written test.
  • Where to test:
    CDL testing is administered by the Montana Motor Vehicle Division (MVD) and approved third-party testers.
  • Tip:
    Always verify the latest steps, fees, and forms with the Montana MVD before scheduling.

What’s on the Montana CDL Knowledge Tests

General Knowledge

— inspection, safe driving habits, space/speed management, driving at night or in bad weather, and cargo basics.

Air Brakes

— air brake parts, dual systems, spring brakes, stopping distance, and downhill control.

Combination Vehicles

— coupling, uncoupling, skids, rollover prevention, and inspections.

Hazmat (H)

— hazard classes, placards, shipping papers, parking, emergencies, and security.

Passenger (P) & School Bus (S)

— passenger safety, emergencies, bus evacuation, mirror use, and rail crossings.

Tankers (N)

— surge/slosh, rollover, and inspection details.

Doubles/Triples (T)

— coupling, converter dollies, inspections, and control on turns.

Pre-Trip

— step-by-step inspection items and safety checks.

Required for All CDL Drivers

These tests are mandatory for all Commercial Driver's License applicants

About General Knowledge Tests

Basic rules, regulations, and safe driving practices for commercial vehicles

General Knowledge Test 1

Basic CDL knowledge and traffic laws

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 2

Vehicle safety and inspection procedures

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 3

Driving techniques and hazard awareness

📝 50 Questions 🎯 80% to pass
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General Knowledge Test 4

Transportation of cargo and passengers

📝 50 Questions 🎯 80% to pass
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General Knowledge Test 5

Emergency procedures and vehicle maintenance

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 6

Final comprehensive review test

📝 50 Questions 🎯 80% to pass
Start Test
About Air Brakes Tests

Air brake systems, inspection, and operation procedures

Air Brakes Test 1

Basic air brake system components and operation

📝 25 Questions 🎯 80% to pass
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Air Brakes Test 2

Air brake inspection and testing procedures

📝 25 Questions 🎯 80% to pass
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Air Brakes Test 3

Emergency procedures and troubleshooting

📝 25 Questions 🎯 80% to pass
Start Test

Air Brakes Test 4

Advanced air brake systems and safety

📝 25 Questions 🎯 80% to pass
Start Test
About Pre-Trip Inspection Tests

Vehicle inspection procedures and safety checks

Pre-Trip Inspection Test 1

Engine compartment and cab inspection

📝 20 Questions 🎯 80% to pass
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Pre-Trip Inspection Test 2

Exterior vehicle inspection

📝 20 Questions 🎯 80% to pass
Start Test

Pre-Trip Inspection Test 3

Trailer and coupling system inspection

📝 20 Questions 🎯 80% to pass
Start Test

Endorsement Tests

Additional certifications for specialized commercial driving

About Combination Vehicles Tests

Tractor-trailers, truck and trailer combinations

Combination Vehicles Test 1

Coupling and uncoupling procedures

📝 20 Questions 🎯 80% to pass
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Combination Vehicles Test 2

Inspection of combination vehicles

📝 20 Questions 🎯 80% to pass
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Combination Vehicles Test 3

Driving combination vehicles safely

📝 20 Questions 🎯 80% to pass
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Combination Vehicles Test 4

Backing and maneuvering techniques

📝 20 Questions 🎯 80% to pass
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Combination Vehicles Test 5

Advanced combination vehicle operation

📝 20 Questions 🎯 80% to pass
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About Hazmat Tests

Hazardous materials transportation and safety

Hazmat Test 1

Hazmat classification and identification

📝 30 Questions 🎯 80% to pass
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Hazmat Test 2

Loading and handling procedures

📝 30 Questions 🎯 80% to pass
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Hazmat Test 3

Documentation and placarding

📝 30 Questions 🎯 80% to pass
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Hazmat Test 4

Emergency response and safety procedures

📝 30 Questions 🎯 80% to pass
Start Test
About Passenger Vehicles Tests

Buses and vehicles designed to transport passengers

Passenger Vehicle Test 1

Pre-trip inspection for passenger vehicles

📝 20 Questions 🎯 80% to pass
Start Test

Passenger Vehicle Test 2

Loading and unloading passengers

📝 20 Questions 🎯 80% to pass
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Passenger Vehicle Test 3

Passenger safety and emergency procedures

📝 20 Questions 🎯 80% to pass
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Passenger Vehicle Test 4

Special situations and regulations

📝 20 Questions 🎯 80% to pass
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About School Bus Tests

School bus operation and student transportation safety

School Bus Test 1

Loading and unloading students

📝 20 Questions 🎯 80% to pass
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School Bus Test 2

Emergency exits and evacuation procedures

📝 20 Questions 🎯 80% to pass
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School Bus Test 3

Student management and safety

📝 20 Questions 🎯 80% to pass
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School Bus Test 4

Special hazards and situations

📝 20 Questions 🎯 80% to pass
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About Tanker Vehicles Tests

Liquid cargo transportation and tank vehicle operation

Tanker Vehicle Test 1

Tanker vehicle inspection and safety

📝 20 Questions 🎯 80% to pass
Start Test

Tanker Vehicle Test 2

Driving techniques for liquid cargo

📝 20 Questions 🎯 80% to pass
Start Test

Tanker Vehicle Test 3

Loading, unloading, and emergency procedures

📝 20 Questions 🎯 80% to pass
Start Test
About Doubles/Triples Tests

Double and triple trailer combinations

Doubles/Triples Test 1

Coupling and inspection procedures

📝 20 Questions 🎯 80% to pass
Start Test

Doubles/Triples Test 2

Driving techniques and safety

📝 20 Questions 🎯 80% to pass
Start Test

Doubles/Triples Test 3

Emergency procedures and troubleshooting

📝 20 Questions 🎯 80% to pass
Start Test

FAQs — Montana CDL

Additional certifications for specialized commercial driving

Q1- Who needs a CDL in Montana?

Any driver operating vehicles 26,001 lb+, towing 10,001 lb+, carrying 16+ passengers, or transporting hhazmat.

Q2- Minimum age?

18 intrastate, 21 interstate/hazmat/passenger.

Q3- Medical card?

Yes, valid DOT medical certificate required.

Q4- ELDT requirement?

Yes — applies to new Class A/B and H/P/S endorsements.

Q5- CLP holding period?

At least CLP at least 14 days before the skills test.

Q6- Testing authority?

Montana MVD or approved third-party testers

Q7- Passing score?

80% minimum.

Q8- Hazmat check?

TSA background check required.

Q9- Bring to test?

Driver’s license, CLP, medical card, ELDT proof, and test vehicle.