Alaska CDL practice test
Getting a commercial driver's licence in Alaska starts with the CDL knowledge tests. The content is federal: every state, Alaska included, writes its tests from the FMCSA CDL manual, so the general knowledge test has 50 questions, the endorsement tests have 20 to 30, and the passing score is 80% on each. Alaska Division of Motor Vehicles administers the test; the rules behind it are published by the FMCSA. Try the free Alaska CDL practice questions below, then pick a full test.
- 50general knowledge questions
- 80%passing score on every test
- 8knowledge tests covered
- AKpick your state once in the app
Free Alaska CDL practice quiz
Five questions from the general knowledge, air brakes and combination vehicles banks, the three tests most Alaska Class A applicants take first. Tap an answer to see if you were right and read the explanation.
0 of 5 right0 of 5 answered
Convex (curved) mirrors are useful because they:
Answer: B. Show a wider area than flat mirrors, though objects look smaller and farther awayA convex mirror bends the view to cover more area, which helps you find vehicles beside you. The trade-off is that everything in it looks smaller and farther away than it really is, so judge distance with care.
Source: FMCSA CDL Manual, Section 2.4 (Seeing to the Sides and Rear)
When crossing railroad tracks you should never:
Answer: B. Shift gears while on the tracksShifting on the tracks risks missing the gear and stalling with the vehicle stopped across the rails. Pick the gear before you reach the crossing and keep it until you are fully across.
Source: FMCSA CDL Manual, Section 2.15 (Railroad-Highway Crossings)
If you must drive in fog, which headlights should you use?
Answer: B. Low beamsThe manual says to use low-beam headlights and fog lights for the best visibility in fog, even in daytime, and to turn on your four-way flashers so drivers behind you can see you. The best advice for heavy fog is not to drive at all: pull off into a rest area or truck stop until visibility is better.
Source: FMCSA CDL Manual, Section 2.12 (Driving in Fog)
Before starting down a long, steep downgrade you should:
Answer: B. Choose a gear low enough to hold your speed without heavy braking, before you start downPick the gear before the grade, not on it. It must be low enough that the engine holds your speed without the brakes doing all the work; with modern trucks that is often a lower gear than the one used to climb. Never coast in neutral, and a retarder is a helper, not a replacement for the right gear.
Source: FMCSA CDL Manual, Section 2.16 (Mountain Driving)
The proper braking technique on a long downgrade is to:
Answer: B. Brake hard until about 5 mph below your safe speed, release, and repeat when you reach the safe speed againThis is snub braking. Apply the brakes firmly until you are about 5 mph below the safe speed, release them, and when speed climbs back to the safe speed, repeat. Light constant pressure lets the brakes overheat and fade.
Source: FMCSA CDL Manual, Section 2.16 (Proper Braking Technique)
Every CDL test for Alaska drivers
Each page has a free ten-question quiz, the real question count, the 80% pass mark and what the test covers.
How the Alaska CDL knowledge test works
You take the general knowledge test first; it is required for every CDL class. Class A drivers add the combination vehicles test. Almost everyone takes the air brakes test, because skipping it puts an air brake restriction on the licence. Endorsements (hazmat, tanker, doubles/triples, passenger, school bus) each have their own knowledge test. Pass the tests and you hold a commercial learner's permit; the skills test in a truck comes later.
Fees, appointment rules and test centre locations are set by Alaska; the current ones from Alaska DMV are in the next section. What does not change is the content, and that is what PassRig drills.
Alaska CDL fees and rules
In Alaska the CDL is issued by the Alaska Division of Motor Vehicles. The figures below are taken from its own pages and were last checked on 2 November 2026. Fees and rules change, so confirm with the agency before you go.
Study from the state's own book: Alaska CDL Manual. PassRig's questions are written from the same FMCSA manual it is based on.
| What | AK | Source |
|---|---|---|
| Learner's permit fee | $15 | dmv.alaska.gov |
| CDL fee | $100 standard or $120 REAL ID, Class A, B or C | dmv.alaska.gov |
| Permit valid for | 180 days, extendable by another 180 days by resubmitting your forms | dmv.alaska.gov |
| Minimum age | 18; 21 for a school bus or hazmat endorsement or to drive interstate | dmv.alaska.gov |
| Appointment | Contact your local DMV office to schedule a knowledge exam | dmv.alaska.gov |
| If you fail | Knowledge tests may be taken once per day | dmv.alaska.gov |
| Attempts allowed | Once per day until successful completion | dmv.alaska.gov |
| Medical certificate | Must be medically qualified and provide a Medical Examiner's Certificate unless exempted | dmv.alaska.gov |
| Entry-level driver training | Required for a first Class A or B CDL or when upgrading an existing CDL | dmv.alaska.gov |
| Also worth knowing | Commercial road test fee $25 | dmv.alaska.gov |
5 official pages from Alaska DMV were read for this section. Nothing on it is estimated.
Alaska CDL test questions
How many questions are on the Alaska CDL test?
The Alaska CDL general knowledge test follows the federal model: 50 questions, 40 correct to pass. Endorsement tests are shorter: air brakes 25, hazmat 30, and combination vehicles, tanker, doubles/triples, passenger and school bus 20 each.
What is the passing score on the Alaska CDL permit test?
80% on every knowledge test, the same pass mark used across the United States.
Where do I take the CDL knowledge test in Alaska?
Alaska Division of Motor Vehicles gives the test. Contact your local DMV office to schedule a knowledge exam The test content itself comes from the FMCSA CDL manual.
How much does a CDL permit cost in Alaska?
Alaska DMV lists the commercial learner's permit fee as $15. If you fail a knowledge test: Knowledge tests may be taken once per day
Does PassRig have Alaska CDL practice questions?
Yes. Pick Alaska in the app and you get practice sets and mock exams built from the knowledge test content your state uses, with the real counts and the 80% line.
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