Alaska (AK) CDL manual 2026

Practice the manual, chapter by chapter

State manuals are built on the same national model, chapter for chapter. One thing to know from each chapter, then real questions from it to answer — tap an option to check yourself.

1. 1

   Introduction

   Everyone

   You will lose your CDL for at least one year for your third railroad-highway grade crossing violation within a three-year period.

   What penalty may a court impose for holding more than one license?

   1. AA fine of up to $1,000 and no jail time
   2. BA disqualification of exactly 30 days
   3. CA fine of up to $10,000 and no jail time
   4. DA fine of up to $5,000 or a jail term

   How quickly must you tell your employer that your license has been suspended?

   1. AWithin two business days
   2. BBefore your next dispatch
   3. CWithin seven days
   4. DWithin 30 days
   This chapter has 26 more questions. Practice them in the app and see your pass chance.
2. 2

   Driving Safely

   Everyone

   Whenever you are about to pass a vehicle, pedestrian, or bicyclist, assume they do not see you; they could suddenly move in front of you.

   Why should you never change gears while your vehicle is moving across railroad tracks?

   1. AA missed shift could leave you stalled or stuck on the tracks
   2. BShifting can damage the transmission on the rough rail surface
   3. CIt is illegal to change speed anywhere inside a crossing zone
   4. DThe extra engine noise could drown out an approaching train horn

   What is the final action of the engine compartment step?

   1. ARecord the fluid levels on the report
   2. BWipe down the dipsticks and stow them
   3. CLower and secure the hood, cab, or door
   4. DStart the engine from the fender step
   This chapter has 290 more questions. Practice them in the app and see your pass chance.
3. 3

   Transporting Cargo Safely

   Everyone

   You are responsible for knowing your cargo does not restrict your access to emergency equipment.

   Which cargo responsibility remains yours even when someone else loads the vehicle?

   1. ADetermining the freight class for billing
   2. BRecognizing overloads and poorly balanced weight
   3. CChoosing the route the shipment will take
   4. DSelecting the packaging the freight travels in

   What does Gross Vehicle Weight Rating describe?

   1. AThe combined weight of a power unit and its trailer
   2. BThe weight transmitted to the ground by one axle
   3. CThe actual weight of the vehicle as loaded today
   4. DThe manufacturer's loaded weight for a single vehicle
   This chapter has 26 more questions. Practice them in the app and see your pass chance.
4. 4

   Transporting Passengers

   P endorsement (bus)

   Never refuel a bus in a closed building while passengers are on board; avoid fueling with riders aboard unless absolutely necessary.

   Which sections of the manual does the knowledge test for the passenger endorsement cover?

   1. ASections 3 and 4
   2. BSections 2 and 4
   3. CSection 4 alone
   4. DSections 1 and 4

   What does the manual say about the seat belt at the driver's position?

   1. AIt is required only when passengers are aboard
   2. BThe seat should have one, and you should always use it
   3. CIt is optional if the seat has an air suspension
   4. DIt is required only on interstate charter runs
   This chapter has 98 more questions. Practice them in the app and see your pass chance.
5. 5

   Air Brakes

   Any vehicle with air brakes

   ABS is an addition to the normal brakes and does not decrease or increase normal braking capability; it only activates when wheels are about to lock up.

   How is supply pressure displayed on a vehicle with a dual air brake system?

   1. AA gauge for the primary system and a warning lamp for the secondary
   2. BOne gauge showing the lower of the two systems
   3. CA gauge for each half, or one gauge with two needles
   4. DOne gauge showing the combined total of both systems

   How is a manually operated air tank drain valve worked?

   1. ABy holding the dash drain switch until air stops
   2. BBy loosening the tank's inspection plate
   3. CBy backing off the fitting with a wrench
   4. DBy turning it a quarter turn or pulling a cable
   This chapter has 148 more questions. Practice them in the app and see your pass chance.
6. 6

   Combination Vehicles

   Class A

   Drivers of ABS-equipped vehicles should brake normally; the system intervenes only when wheels are about to lock.

   Whenever you back with a trailer, how should you try to position the vehicle first?

   1. ASo the tractor is jackknifed about 30 degrees
   2. BSo the trailer tandems are slid fully forward
   3. CSo you can back in a straight line
   4. DSo the trailer is angled toward the passenger side

   When you can choose the direction, toward which side should you back a tractor-trailer?

   1. AThe right side, so the curb can guide the trailer
   2. BWhichever side offers the most open pavement
   3. CThe passenger side, to keep the fuel tank protected
   4. DThe driver's side, where you can see the trailer directly
   This chapter has 118 more questions. Practice them in the app and see your pass chance.
7. 7

   Doubles and Triples

   T endorsement

   Release the converter dolly fifth wheel latch, then slowly pull the tractor, first semitrailer and dolly forward to draw the dolly out.

   Your tractor has a sliding fifth wheel. What must be true of its locking pins during inspection?

   1. AThe pins greased and free to move
   2. BAll pins withdrawn so the slide can float
   3. CAt least one pin engaged on each rail
   4. DAll pins present and locked in place

   Before backing the converter dolly under the second trailer, the trailer's nose height should be:

   1. AExactly level with the top of the dolly fifth wheel
   2. BResting on its landing gear pads at ground level
   3. CWell above the fifth wheel so it drops on hard
   4. DSlightly lower than the center of the dolly fifth wheel
   This chapter has 98 more questions. Practice them in the app and see your pass chance.
8. 8

   Tank Vehicles

   N endorsement

   Drivers must know how a tank vehicle's built-in fire extinguisher and other special equipment operate before driving.

   During a pre-trip inspection of a cargo tank, what is the most important thing to check the tank body, piping, and valves for?

   1. AFresh paint covering all of the placard holders
   2. BDecals that display the carrier's safety rating
   3. CLeaks or any sign of product escaping from the tank
   4. DThe date the tank shell was originally manufactured

   Inside cargo tanks, what is the key structural difference between a bulkhead and a baffle?

   1. AA bulkhead is removable for cleaning, while a baffle is welded in place
   2. BA bulkhead is solid and seals off compartments; a baffle has holes that let liquid pass
   3. CA bulkhead runs lengthwise along the tank, while a baffle runs across it
   4. DA bulkhead strengthens the tank shell, while a baffle only supports the piping
   This chapter has 62 more questions. Practice them in the app and see your pass chance.
9. 9

   Hazardous Materials

   H endorsement

   Always chock trailers and semi-trailers to prevent motion when uncoupled from the power unit.

   On a portable tank holding less than 1,000 gallons, how tall must the shipping name letters be?

   1. AAt least one inch
   2. BAt least three inches
   3. CAt least two inches
   4. DThere is no minimum for tanks that small

   Hazardous materials rules are built around three broad goals. Which set below matches the intent of those rules?

   1. AContainment, risk communication, and safe drivers and equipment
   2. BDelivery speed, fuel efficiency, and the lowest shipping cost
   3. CRecycling, disposal, and long-term storage of hazardous waste
   4. DRoadside inspection, fuel taxation, and vehicle registration
   This chapter has 234 more questions. Practice them in the app and see your pass chance.
10. 10

    School Buses

    S endorsement

    Count the number of students at the bus stop and be sure all board the bus; if there is a student missing, ask the other students where the student is.

    When should you adjust the outside mirror system on your school bus?

    1. AWhile driving slowly during the first mile of the route
    2. BBefore starting the route, while the bus is safely parked
    3. COnly after a student reports something you failed to see
    4. DAt the first student stop, while the red lights are flashing

    What does a sign mounted below the cross-buck tell you?

    1. AThe speed limit for crossing the tracks
    2. BThe number of tracks at the crossing
    3. CThe name of the railroad operating the line
    4. DThe distance to the next crossing
    This chapter has 98 more questions. Practice them in the app and see your pass chance.
11. 11

    Pre-Trip Vehicle Inspection

    Everyone (skills test)

    Inspect the fifth wheel skid plate for cracks, breaks or excessive wear.

    At what speed is the service brake check performed?

    1. A15 mph
    2. B10 mph
    3. C20 mph
    4. D5 mph

    What is the consequence of performing the hydraulic brake check incorrectly on the inspection test?

    1. AA point deduction from the total score
    2. BA warning noted on the score sheet
    3. CAn automatic failure of the test
    4. DA required retest of that item only
    This chapter has 200 more questions. Practice them in the app and see your pass chance.

The official Alaska CDL manual