Alaska
CDL Practice Test

The tests offered here are designed to help you prepare for your Alaska CDL test. These Alaska CDL practice tests are free and you may take them as often as you need to. You will be able to practice different CDL test questions different topic areas you’ll see on the test as you prepare to gain your commercial driver license in Alaska. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50 minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin. Good luck!

1 / 40

To prevent a roll over a driver can 1) keep the cargo as low to the ground as possible and 2) _____.

have the brakes properly adjusted

have the fifth wheel's free play as tight as possible

take turns slowly

drive while intoxicated

2 / 40

_____ create a little above 90 degree angle between the adjuster arm and push rod when the brakes are released and no less than 90 degrees when the brakes are applied.

brake drums

brake disc

slack adjusters

air lines

3 / 40

What is the safest way to stop unruly behavior on the bus?

have the unruly students move to the front of the bus

yell loudly for the students to sit down and behave themselves

pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them

keep checking the rear view mirror so you can see what happened and report to the principal

4 / 40

For emergency braking when driving a double trailer and having to use your brakes to avoid a collision is to:

apply a firm pressure to the brake pedal and don’t let off

use the engine brake

use just the trailer brakes

use stab or controlled braking

5 / 40

You should follow the posted speed limits for curves and be aware of:

A rollover may occur even when driving at the posted speed limit.

All answers listed.

The posted speed limit may be too high for safety.

The higher center of gravity on a tank truck.

6 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

false

trailers never tip

true

there is an equal chance for trailers to tip

7 / 40

What is a technical name?

The name for a hazardous material most commonly used in the trucking community, accepted as standard.

The name for a hazardous material used in scientific journals and texts, recognized as its chemical and microbiological name.

The medical term for hazardous materials used by medical personnel.

The name for a hazardous material most commonly used on the street.

8 / 40

Select when you should use the parking brake:

with rare exception, every time you leave your vehicle

each time you leave your vehicle for any amount of time

when in residential areas

when you are leaving your vehicle for more than an hour

9 / 40

For what reason do you keep the starter switch key in your pocket during the pre-trip inspection?

you will need it to inspect the trailer

so no one moves the vehicle while you are inspecting underneath it

you will need it to open the side box

so you don't lose it

10 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

2 psi in a minute

4 psi in a minute

3 psi in a minute

5 psi in a minute

11 / 40

What is the reason that placards are used?

communicate the risk

so hazmat is not mixed with food

it is the law

to prevent terrorism

12 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

Not allow the rider to do it.

Have the rider pay a second fare.

Put the materials in the bus's "safe box".

Instruct the rider to sit next to an open window.

13 / 40

Select the true statement about empty trucks:

They have better traction on wet roads than full tanks.

They come to a stop faster when you use only the emergency brake.

All answers listed.

They can take longer to stop than a truck with a full tank.

14 / 40

The best way to go into a curve is to decrease your speed going into the curve and then ____going through it.

slightly accelerate

none of the answers listed

ride the brake

shift down 2 gears

15 / 40

You should adjust all the outside left and right side flat mirrors to see:

The children's exit path out of the main bus door.

The rear right and left tires touching the ground as well as 200 feet behind the bus.

The entire area to the rear of the mirror along the side of the bus.

The passenger area inside the bus.

16 / 40

What are the 3 methods for securing a second trailer before coupling?

parking against another trailer, locking the trailer door, and chocking the tires

parking on level ground, chocking the tires, and charging the trailer air tank if it doesn't have spring brakes

chocking the tires, parking on level ground, and charging the air tank

all answers listed

17 / 40

When approaching a school bus stop, you should:

Activate your overhead amber lights.

All of these answers are correct.

Gradually decrease speed until the stop.

Continuously check all mirrors.

18 / 40

What does outage mean?

It is the allowance needed for the expansion of liquid.

It is the weight of the liquid.

It is how quickly the tanks drain.

It is the movement of the liquid.

19 / 40

Which of the following is NOT a part of the steering system?

tie rod

steering knuckle

main spring

hydraulic fluid reservoir

20 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

the tractor to lose all air pressure in the tanks

the trailer supply valve will remain open

the tractor protection valve will close

the tractor will gain air pressure

21 / 40

Be careful to check the_____when unloading the smaller tanks of bulk heads.

the fuel to air ratio

percentage of alcohol

weight distribution

percentage of water

22 / 40

To find out if a shipment includes a hazardous material, you should:

Look at the shipping papers.

Open and inspect every package and container.

Check for a fence around the loading dock.

Ask the driver.

23 / 40

What kind of surge can occur in a tank with baffles?

Back to front

All answers listed

Side to side

Bottom to top

24 / 40

What keeps air in the tanks should the air compressor develop a leak?

the air compressor

the one-way check vavle

the tractor relay valve

the engine protection valve

25 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

about 100 feet in front of your vehicle

on the other side of a divided highway

about 100 feet behind your vehicle

within 10 feet of the front or rear corners

26 / 40

This object should not move more than an inch by pulled by hand with the brakes released for manual slack adjusters.

The air lines

The brake chambers

The brake pushrod

The bounce absorbers

27 / 40

Double and triple trailers should be driven with care to avoid a rollover or jacknife.

false

only in ideal conditions

true

only on downgrades

28 / 40

At what "cut out" level does the governor stop pumping air?

150 psi

75 psi

100 psi

125 psi

29 / 40

Select the part that is not a part of the drum brake:

axle

slack adjuster

brake drum

safety valve

30 / 40

If you have to swerve to avoid a hazard, it's important to:

None of these answers are correct.

Make sure your passengers are wearing seat belts.

Know where other vehicles are around your bus by checking your mirrors.

Warn passengers with a loud and clear voice.

31 / 40

The golden rule for school buses when approaching and crossing railroad tracks is:

None of these answers are correct.

Stop, look, and turn on the radio lights overhead.

Stop, go, and stop.

Stop, look, and listen.

32 / 40

Cargo tanks are:

Bulk packaging permanently attached to your vehicle.

Only made in one size.

Filled while they are off your vehicle, then attached for transportation.

Bulk packaging temporarily attached to your vehicle.

33 / 40

Select the situation in which you should use the hand valve to park a combination vehicle.

when parking on a grade

when parking at loading docks

in no situation

during the winter

34 / 40

Select the statement that best describes what the service line is for.

it is controlled by the trailer hand brake and carries air

it is controlled by the foot brake and carries air

it is controlled by the foot brake or trailer hand brake and carries air

all answers listed

35 / 40

On the Hazardous Materials Table, column 1 shows:

How to ship an item.

What materials can be loaded together.

To what shipping mode the information on that line applies.

How much of the material can be put in a vehicle without placarding.

36 / 40

In the event of a tire failure you should...

disengage the clutch so you are in neutral gear

pump the brakes until you come to a stop

stay off the brake and hold the steering wheel firmly

accelerate quickly until you find a place to pull over

37 / 40

Upon what does the amount of liquid you can carry in a load depend?

All of the answers listed.

The weight of it.

The amount of expansion that will occur.

The legal weight limits.

38 / 40

This object should be clean with no obstructions, illegal stickers or damage to the glass.

The windshield

The side mirrors

The lighting indicators

The headlights

39 / 40

What is the best way to stop all skids?

use controlled or stab braking

restore traction back to the tires

quickly turn the steering wheel side to side

accelerate and countersteer

40 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

1 to 1 1/2 inches

1/2 to 1 inch

none

it depends on how heavy the load is

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

How To Get an Alaska Commercial Drivers License

Applicants are eligible for their CDL at the age of 18 years old. However, it's important to realize that CDLs issued for individuals under the age of 21 are restricted to intrastate commerce. Only those 21 years of age or older are eligible for interstate commerce. In addition, drivers must be 21 years old to drive a school bus, double or triple trailers, and obtain their Hazmat Certification.

All commercial driver's license applicants must get a physical examination by a FMCSA-Certified Medical Examiner. The examiner will give the applicant a DOT medical card if they are assessed as in good health to be driving a commercial vehicle.Any applicants that have the following are considered disqualified from receiving an Alaska-issued CDL:

Currently disqualified from commercial driving privileges in another state.
Currently have more than one operator's license in Alaska or any other states.
Operator's license is currently suspended, denied, canceled, or revoked.

Endorsements

H – Hazardous Materials
N – Tank Vehicles
P – Passenger
S – School Bus
T – Double/Triple
X – Combination Tank and Hazardous Materials

Hit the Open Road

Alaska CDL License Test Tips

All Alaska CDL applicants must successfully pass a general knowledge test of 50 questions on the topic of commercial driving laws. Those attempting Class A Certification must complete 20 additional questions about driving combination vehicles. Those looking for endorsements or the removal of the Air Brake restriction will be required to take additional knowledge assessments. These assessments range between 20 and 30 questions regarding the specific endorsement topic. All knowledge tests must be passed with a score of 80 percent or better for a resident to be eligible for their commercial driver's license.A skills test is required of all applicants to showcase their ability to operate a commercial vehicle. The skills assessment includes a pre-trip inspection, on-road driving test, and basic control operations test. Those seeking endorsements for Passengers, School Bus, or removal of the Air Brake Restriction will need to utilize the particular vehicle the endorsement is for when performing their skills test. For example, to remove the Air Brake Restriction an individual must take the skills test in a vehicle that is equipped with air brakes.

Additional Information

CDL Testing by the Alaska Division of Motor Vehicles

The Alaska Division of Motor Vehicles administers the certifying and testing of commercial drivers in the state. To get more information contact them via:

Website: https://doa.alaska.gov/dmv/akol/cdl/

Phone: 907.269.5551

Additional Alaska CDL Helpful Links

Please use the links below to access more valuable Alaska CDL testing resources and to learn more about practice driving test resources for the state of Alaska.

Alaska CDL Practice Test