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

Select the statement of what you should not do if you are required to drive through flowing water or deep puddles.

quickly turn the steering wheel side to side

drive at a high speed

shift into a lower gear

increase engine rpm

2 / 40

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

yes

when the vehicle is runaway

when the GVCW is above 20,000 lbs

3 / 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 or trailer hand brake and carries air

it is controlled by the foot brake and carries air

all answers listed

4 / 40

This item does not need to be checked during the cab check.

The defroster/heater

The windshield wipers and fluid levels

The air conditioning

The horn

5 / 40

If students must cross the street, when they get off the bus, which statement is true?

When the driver signals that it is safe to proceed, the students must run across the street to reduce the exposure to danger.

The student should wait to cross the street until the bus continues on its route.

For crossing, students should make eye contact with the bus driver and wait for the driver's signal that it is safe to proceed.

If the bus is equipped with the crossing gate, the danger of running over the child is eliminated.

6 / 40

Spring brakes are usually held back by_____during normal driving.

air pressure

pressure of the spring

clamps

heat

7 / 40

This should be cleaned and then adjusted properly while inside the cab.

The windshield

The lug bolts

The headlights

The mirrors

8 / 40

Two causes of tire fires are ______.

hot brakes and under-inflated tires

duals that touch and road debris

under-inflated tires and duals that touch

under-inflated tires and poor retreads

9 / 40

Select the factor that has no effect on how much liquid you can carry:

How much the liquid will expand in transport.

The density of the liquid.

The liquid's weight.

The legal amount of weight you can carry of any particular liquid.

10 / 40

Wet brakes can cause _____.

all of these answers are correct

pulling to one side or the other

lack of braking power

brakes to apply unevenly

11 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

Brake lines/hoses

Slack pieces

Connector rods

Brake drums

12 / 40

What is the reason that placards are used?

it is the law

to prevent terrorism

so hazmat is not mixed with food

communicate the risk

13 / 40

If you double your speed, what will happen to your stopping distance?

it increases by four times

it stays about the same

it increases by two times

none of these answers are correct answers are correct

14 / 40

What is the purpose of cladding in a tanker?

It protects the tanker form any corrosive cargo.

It protects the cargo from changes in temperature.

It controls the temperature of the cargo.

It eliminates liquid surge.

15 / 40

How do you check the coolant level?

Inspect the reservoir sight glass or remove the radiator cap if the engine isn't hot.

While wearing rubber gloves and safety glasses.

None of the answers listed.

Remove the radiator cap once it is at operating temperature.

16 / 40

You should____when an emergency requires you to quickly stop due to a crash.

maintain pressure on the brake pedal

use the hand valve

use stab or controlled braking

use only the engine brakes

17 / 40

When driving normally, some drivers use the hand valve before applying the brake pedal to prevent jack knifing. Select the most appropriate response to this statement.

should be used with caution and only if you are aware of the dangers

it should not be done

it will result in less skidding than when just using the brake pedal alone

it is the best possible way to brake and maintain the truck in a straight path

18 / 40

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

The amount of expansion that will occur.

The weight of it.

The legal weight limits.

All of the answers listed.

19 / 40

A tractor should not be backed under a trailer until the whole air system is:

is between 50 and 80 psi

is at half of the maximum pressure

at a normal pressure

is between 40 and 60 psi

20 / 40

A hazard class that uses transport indexes to determine the amount that can be loaded in a single vehicle is _____.

Class 3 flammable liquids

Class 6 poisons

Class 7 radioactive materials

Class 1 explosives

21 / 40

What is the movement of the liquid called when the tanks are partially filled?

Framing

Surging

Crashing

Knocking

22 / 40

A driver of a tank vehicle should take curves, off ramps, and on ramps at a speed lower than the posted speed limit.

True but only in ideal conditions

False

True but only in rainy conditions

True

23 / 40

If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?

Make sure the silver cyanide is loaded on top of the battery acid.

Make sure there is plenty of space between the two.

Make sure the battery acid is loaded on top of the silver cyanide.

Inform someone and not load the battery acid.

24 / 40

All standing riders must stay:

Behind the standee line.

Within two feet of an emergency exit.

Forward of the rear of the driver's seat.

In front of the standee line.

25 / 40

How often should you drain your air tanks?

at the end of each trip

at the beginning of each month

at the end of each shift

at the end of each week

26 / 40

Select the true statement about empty trucks:

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

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

All answers listed.

They have better traction on wet roads than full tanks.

27 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

that the radio transmits a signal

that there are no leaks in the air brake system

that the registration is in the cup holder

that the tire tread is sufficient for the expected driving conditions

28 / 40

Rods, connecting links, and arms from the steering box to the wheel are a part of the:

Braking system

Power steering fluid

CB radio

Steering linkage

29 / 40

Select the true statement in regards to your brake function when your ABS fails

you will have no control over your truck as the brakes will not be functioning

there is a huge fire risk

you will need to pull over immediately

the abs will need to be repaired but the brakes will function normally

30 / 40

The compressor is connected to the engine via _____?

v-belt or gears

stag gears

r-belt

lines

31 / 40

You are driving a 40 foot truck at 35 MPH, how much space (in seconds) should you keep in front of you?

5 seconds

6 seconds

3 seconds

4 seconds

32 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

Yes

Only in populated areas

Only if you have more than 1,001 pounds of it

33 / 40

The walls that separate compartments inside the tanks and having openings at the top and bottom are called:

Free walls

Layers

Bulktears

Baffles

34 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

Turn it off during product transfer, while unhooking the hose.

Turn it off after product transfer, before you unhook the hose.

None of these answers are correct.

Turn it off before product transfer, before you hook the hose.

35 / 40

The best way to test if the spring brakes come on automatically is to:

all of these answers are correct

apply pressure on and off the brake pedal until the parkng brake valve pops out on tractor-trailer vehicles

apply pressure on and off the brake pedal until the parking valve pops out on single vehicles

apply pressure on and off the brake pedal until the manufacturer's low psi specification has been met for the spring brakes to deploy

36 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

37 / 40

How do you test the trailer service brakes?

apply the hand control and check to see if you feel the trailer brakes come on

apply pressure to the brake pedal

release air to the spring brakes

test the brakes out while driving at 5 mph

38 / 40

When using turn signals, which of the following should be avoided?

signal before you exit

signal when you want to change lanes

signal just before you start to make a turn

signal when you are merging into traffic

39 / 40

What is the purpose of a driver placarding his or her vehicle?

Giving people something interesting to look at while driving.

Communicating risk.

Warning those with children to drive in another lane.

Forcing other drivers to stay 20 feet away in every direction.

40 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

70 psi

They should never pop out

40 psi

20 psi

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