Free Alaska CDL Practice Test — Updated for 2025

If you want to start or advance a career in commercial driving in Alaska, you’ll need to pass the state’s written CDL knowledge tests. This page provides free Alaska CDL practice tests for every major section: General Knowledge, Air Brakes, Combination Vehicles, Hazmat, Passenger, School Bus, Tankers, and Doubles/Triples. Each practice test shows one question at a time, gives instant feedback, and includes a clear explanation. These CDL practice exams are updated for 2025 to match the latest state and federal standards.

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.

Alaska CDL at a Glance (Plain-English Summary)

  • Age & eligibility:
    You must be 19 years old to drive commercially within Alaska (intrastate), and 21 years old to drive interstate, to carry passengers, or to transport hazardous materials.
  • License:
    You must be 19 years old to drive commercially within Alaska (intrastate), and 21 years old to drive interstate, to carry passengers, or to transport hazardous materials.
  • Medical card:
    You need a current DOT Medical Examiner’s Certificate unless exempt.
  • Knowledge tests → CLP:
    You must pass the CDL written knowledge tests for your chosen class (A/B/C) and endorsements to get a Commercial Learner’s Permit (CLP).
  • ELDT:
    Entry‑Level Driver Training is required under federal law for Class A and B CDLs and for the H, S, and P endorsements.
  • Skills test:
    Hold your CLP for at least 14 days before taking the CDL skills test, which includes pre‑trip, basic control, and on‑road.
  • Hazmat:
    The Hazardous Materials (H) endorsement requires passing a knowledge test and a TSA background check.
  • Where to test:
    Testing is managed by the Alaska Division of Motor Vehicles (DMV). Always confirm fees, forms, and steps with the DMV.

What’s on the Alaska CDL Knowledge Tests

General Knowledge

— vehicle inspections, safe driving rules, handling emergencies, space management, distracted driving, cargo basics, and driving in Alaska’s extreme weather and terrain.

Air Brakes

— brake system components, dual systems, warning signals, spring brakes, stopping distance, and controlling speed on steep Alaska grades.

Combination Vehicles

— coupling and uncoupling, trailer inspections, skid control, jackknife prevention, rollover avoidance, and backing safety.

Hazardous Materials (H)

— hazmat classes, placards, shipping papers, loading/unloading rules, segregation, emergency response, and TSA clearance.

Passenger (P) & School Bus (S)

— passenger loading/unloading, emergency exits, evacuation drills, student safety rules, and Alaska-specific bus operation rules (such as railroad crossing procedures).

Tankers (N)

— surge, slosh, rollover prevention, safe speed on curves, and proper inspection of liquid cargo tanks.

Doubles/Triples (T)

— coupling/uncoupling with converter dollies, trailer checks, rollover and off‑tracking control.

Pre‑Trip Inspection

— checking engine compartments, suspension, tires, wheels, lights, steering, brakes, emergency gear, in‑cab items, and cold‑weather equipment required in Alaska.

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
Start Test

General Knowledge Test 4

Transportation of cargo and passengers

📝 50 Questions 🎯 80% to pass
Start Test

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
Start Test

Air Brakes Test 2

Air brake inspection and testing procedures

📝 25 Questions 🎯 80% to pass
Start Test

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
Start Test

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
Start Test

Combination Vehicles Test 2

Inspection of combination vehicles

📝 20 Questions 🎯 80% to pass
Start Test

Combination Vehicles Test 3

Driving combination vehicles safely

📝 20 Questions 🎯 80% to pass
Start Test

Combination Vehicles Test 4

Backing and maneuvering techniques

📝 20 Questions 🎯 80% to pass
Start Test

Combination Vehicles Test 5

Advanced combination vehicle operation

📝 20 Questions 🎯 80% to pass
Start Test
About Hazmat Tests

Hazardous materials transportation and safety

Hazmat Test 1

Hazmat classification and identification

📝 30 Questions 🎯 80% to pass
Start Test

Hazmat Test 2

Loading and handling procedures

📝 30 Questions 🎯 80% to pass
Start Test

Hazmat Test 3

Documentation and placarding

📝 30 Questions 🎯 80% to pass
Start Test

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
Start Test

Passenger Vehicle Test 3

Passenger safety and emergency procedures

📝 20 Questions 🎯 80% to pass
Start Test

Passenger Vehicle Test 4

Special situations and regulations

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

School bus operation and student transportation safety

School Bus Test 1

Loading and unloading students

📝 20 Questions 🎯 80% to pass
Start Test

School Bus Test 2

Emergency exits and evacuation procedures

📝 20 Questions 🎯 80% to pass
Start Test

School Bus Test 3

Student management and safety

📝 20 Questions 🎯 80% to pass
Start Test

School Bus Test 4

Special hazards and situations

📝 20 Questions 🎯 80% to pass
Start Test
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 — Alaska CDL

Additional certifications for specialized commercial driving

Q1- Who needs a CDL in Alaska?

  • A single vehicle with a GVWR of 26,001 lb or more
  • A combination vehicle with a GCWR of 26,001 lb or more if the trailer exceeds 10,001 lb
  • A vehicle carrying 16+ passengers including the driver
  • A vehicle that requires hazmat placards.

Q2- How old do I have to be to get a CDL in Alaska?

You must be 19 years old for intrastate (within Alaska) CDL driving and 21 years old for interstate, passenger, or hazardous materials driving.

Q3- Do I need a DOT medical card in Alaska?

Yes. CDL drivers must pass a physical exam with a certified examiner and carry a valid Medical Examiner’s Certificate, unless eligible for an exemption.

Q4- What is ELDT and does Alaska require it?

Entry-Level Driver Training (ELDT) is federally required for Class A and B CDL applicants and for Hazmat (H), Passenger (P), and School Bus (S) endorsements. You must complete ELDT with an approved provider before taking the skills test or specific endorsement exams.

Q5- How long do I need to hold a CLP in Alaska before the skills test?

You must hold your Commercial Learner’s Permit (CLP) for at least 14 days before scheduling the skills test.

Q6- Where do I take the CDL tests in Alaska?

All CDL knowledge and skills tests are scheduled through the Alaska DMV and approved third‑party testers. Check the DMV website for locations, fees, and requirements.

Q7- What is the passing score for the knowledge tests?

Most CDL knowledge exams require a minimum score of 80% to pass. The number of questions varies depending on the test and endorsements.

Q8- Are the CDL tests available in languages other than English?

Most CDL tests in Alaska are offered in English only. Always confirm language options and interpreter policies with your local DMV.

Q9- Do I need a background check for a Hazmat endorsement in Alaska?

Yes. A TSA background check and fingerprinting are required for the Hazmat endorsement, in addition to the written exam.

Q10- What documents should I bring on test day in Alaska?

Bring your Alaska driver’s license, CLP, medical card, and proof of ELDT training if applicable. For the skills test, bring a vehicle that matches the CDL class you are testing for, properly registered and insured.