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

It is good practice to_____when uncoupling.

have the glad hands coupled together

all answers are appropriate

make sure the electrical cable is hanging with the plug end down

have the glad hands coupled to the dummy couplers

2 / 40

Where is compressed air stored?

in the hose lines

in the storage tank

in the gasoline tank

in the compartment for the engine

3 / 40

When you have a major leak in the service line and you apply pressure to the brakes, the service air pressure will escape and:

the trailer tank pressure will be gone

the tractor spring brakes will kick on

the hand valve will stop functioning

the trailer emergency brakes will kick on

4 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

7 seconds

4 seconds

3 seconds

6 seconds

5 / 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

air lines

slack adjusters

brake disc

6 / 40

When backing, what is the best method to use to avoid blind spots?

use mirrors on both sides

back towards the driver's side, where you can see better

look at your path

use a helper

7 / 40

In what position should the converter dolly air tank drain valves and pintle hook be in?

closed and latched

open and latched

closed and open

open and open

8 / 40

How should the hand valve be used?

only when accompanied by the service brakes

only when accompanied by the foot brake

only when the trailer is loaded to its maximum weight

to test the trailer brakes

9 / 40

What is the most important reason for doing a vehicle inspection?

to insure that you will achieve the best gas mileage

safety for yourself and other road users

federal and state laws require you to inspect your vehicle

to save you money by preventing costly repairs

10 / 40

Where should you place your warning devices if you must stop on a one-way or divided highway?

50 feet, 100 feet, and 150 feet toward approaching traffic

10 feet, 100 feet, and 200 feet toward approaching traffic

20 feet, 50 feet, and 100 feet toward approaching traffic

100 feet, 200 feet, and 300 feet toward approaching traffic

11 / 40

You must control how far packages labeled "Radioactive II" or "Radioactive III" are located from people and cargo space walls by referring to:

The transport index and the separation distances table.

The list of hazardous materials and reportable quantities.

The segregation and separation chart.

The table of hazardous materials.

12 / 40

How do you make sure the air lines are not crossed and the trailer brakes are working after supplying air to the trailer?

lift the brake pedal up

release the tractor brakes

listen for brake sounds as you apply pressure off and on the trailer brakes

activate the parking brakes

13 / 40

You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?

Never.

Only in the event of a federally declared emergency situation.

Only when the shipment does not cross state lines.

Only when the vehicle does not require placards.

14 / 40

What is always required before loading, driving, or unloading a tanker?

Registration of driving plan

Shift into park

Clean the vehicle

An inspection

15 / 40

Select the true statement about empty trucks:

they have poor traction due to wheel lockup and bouncing

empty trucks stop in the same distance as a fully loaded truck

empty trailers are easier to stop because there is not cargo shifting

they have a smaller stopping distance than full trailers

16 / 40

Your bus is disabled. With riders aboard, the bus may be towed or pushed to a safe place only:

By another bus with its four-way flashers on.

If getting off the bus would be more risky for the riders.

If the distance is less than 500 yards.

By a 27,000 lbs gvwr or larger tow truck.

17 / 40

Which of the following must drivers have in their possession while transporting class A or B explosives?

The carrier's insurance policy.

The written route plan.

A gas mask.

None of these answers are correct.

18 / 40

The method used to make sure the spring brakes will come on automatically is to:

Apply pressure on and off the brake pedal to decrease the air tank pressure while driving at a high a speed. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to increase the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure drops to 120 psi.

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

19 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

The release arm

The apron

The locking pins

The arm bar

20 / 40

Buses may NOT have recapped or regrooved tires:

When it's been raining.

Anywhere except on the front wheels.

On the outside rear wheels.

On front wheels.

21 / 40

Make sure____when the front trailer supports are up and the trailer is sitting on the tractor.

there is enough space for clearance between the nose of the trailer and the tops of the tractor tires

there is enough space for clearance between the landing gear and the tractor frame

both of the answers listed

neither of the answers listed

22 / 40

Select the inappropriate way to test for the low pressure warning signal.

have the electrical power on

turn off the engine

ask for a pedestrian to listen for the signal

decreased the air pressure by stepping on and off the brake pedal

23 / 40

Select the true statement about double or triple trailers.

they present a rearward amplification hazard

all answers listed

they can have a dangerous "crack the whip" effect

they can roll over due to abrupt steering movements

24 / 40

The object that doesn't get checked at the side of the trailer is the:

The locking pins/tandem release arm

Electrical/air connections

The frame

The landing gear

25 / 40

Select the true statement in regards to quick steering movements and double trailers:

it is easier to tip doubles and triples from quick steering movements than other vehicles

nothing will occur

you should apply a firm pressure to the brake pedal at the same moment you do quick steering movements

it is easier to countersteer doubles/triples than other vehicles

26 / 40

The most important hand signal you should agree on with a helper is:

“stop”

“go”

“faster”

“turn up the music”

27 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

The driver

The shipper

Your spouse

The carrier

28 / 40

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

Minimum of 5 feet

Minimum of 15 feet

Minimum of 2 feet

Minimum of 10 feet

29 / 40

What action should you take if there is no phone available and you discover your hazardous materials shipment leaking at a rest stop?

Keep driving, slowly and cautiously, until you reach a phone.

Keep driving for help as quickly as possible.

Send someone for help with all the necessary information.

Leave your truck parked with emergency lights on and walk for help.

30 / 40

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

yes

when the GVCW is above 20,000 lbs

when the vehicle is runaway

31 / 40

The safety valve is usually set to open at:

75 psi

125 psi

225 psi

150 psi

32 / 40

Why should you cover cargo?

because many states require it

all of these answers are correct

to protect individuals from any spilled cargo

to protect your cargo from bad weather

33 / 40

For any flatbed load you must have at least ____ tie downs.

one

six

four

two

34 / 40

Select the statement that best explains the "crack-the-whip" effect.

it is when the trailer is half full with the cargo loaded in the rear half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when the trailer is half full with the cargo loaded in the front half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when you make a sudden movement of the steering wheel or a quick lane change and the tractor tends to rock and sway. The velocity of the rearmost trailer forces the tractor to roll over before the trailer.

it is when you make a sudden movement of the steering wheel or a quick lane change and the rear trailer tends to swing out. The force of the rear trailer becomes amplified, which will cause it to roll over (rearward amplification).

35 / 40

Bus drivers must have a CDL if they drive a vehicle:

Designed to seat more than 16 or more persons, including the driver.

That has air brakes.

That is designed to carry more than nine passengers.

That has a gross weight rating of more than 26,000 pounds.

36 / 40

Select the true statement about slack adjusters:

they can be adjusted automatically or manually

they should only be adjusted by a mechanic that is certified in slack adjusters

they do not ever need to be adjusted

they should move a minimum of 2 inches from the push rod attachment

37 / 40

Signs of distracted drivers include:

vehicles exiting the roadway

drivers having conversations with passengers

individuals listening to music too loudly

individuals driving at a consistent speed above the speed limit

38 / 40

Forward and back surge is powerful in this type of tanker.

Hard stroke

Smooth bore

Waffle

Bulktruck

39 / 40

The sliding mechanism and locking device for a tandem axle on trailers is:

Locking pins/tandem release arm

Apron

Metal frame

Suspension system

40 / 40

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

look for an escape ramp or an escape route

put the gears in neutral

downshift

pump the brake pedal

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