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

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

False

True

True but only in ideal conditions

True but only in rainy conditions

2 / 40

Select why you should not use the trailer hand valve while driving:

you should only ever use the parking brake

there is a possibility it will make the trailer skid

it will cause the tractor to shake

it does not work as well as the foot brake does

3 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

in an open position

in a halfway closed position

in a 1/3 open position

in a closed position

4 / 40

You must be alert for road hazards so that:

You will have time to plan your escape if the hazard becomes an emergency.

Accident reports will be accurate.

You can help impaired drivers.

Law enforcement personnel can be called.

5 / 40

Which of the following is a reason that shippers package material?

Because it is the shipper's responsibility to determine whether or not a material is hazardous.

Because it is the shipper's responsibility to correctly label the transport vehicle with precautionary placards.

All of these answers are correct.

Because it is the shipper's responsibilty to choose the correct packaging for a material classified as "hazardous".

6 / 40

To be sure that air is supplied to the second trailer:

keep an eye of the air gauge for a drop of 30 psi

crank the engine brake

open the emergency line shut off at the back of the second trailer

while driving at 10 mph, use the hand valve. The vehicle should stop in the same distance of a single trailer moving at 5 mph

7 / 40

What method should be used to test that the air is flowing to all the trailers?

only a certified mechanic can check for this

pump the brakes with the windows down

check the pressure indicator dial on the final trailer

listen for air flow after opening the shutoff valves at the rear of the last trailer

8 / 40

Air tanks should be drained:

manually when the automatic devices fail

all of these answers are correct

at the end of each shift or day

to prevent sludge from clogginng up the brake system valves

9 / 40

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

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

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

The passenger area inside the bus.

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

10 / 40

Why do air brakes take longer to stop than hydraulic brakes?

it takes more time for the air to flow through the lines

longer reaction time

none of the answers listed

the lines are hotter

11 / 40

How should the pintle hook be when backing a dolly under the second trailer?

removed from the dolly

in the unlatched position

in a halfway open position

in the latched position

12 / 40

To inspect the______you should pump the pedal 3 times and hold it down for 5 seconds while making sure the pedal doesn't move during those 5 seconds.

hydraulic brakes

parking brakes

engine brakes

air brakes

13 / 40

The act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others is known as.

distracted driving

defensive driving

aggressive driving

road rage

14 / 40

A tank trailer should never be fully loaded due to:

The baffles aren't as effective.

The will be more shifting of the load.

The movement is stronger.

The liquid can expand causing a leak from the trailer.

15 / 40

Where should the safety catch for the fifth wheel locking lever be located for coupling to be complete?

outside of the locking lever

below the locking lever

through the locking lever

above the locking lever

16 / 40

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

Steering linkage

CB radio

Power steering fluid

Braking system

17 / 40

What is the safest way to stop unruly behavior on 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.

Have the unruly students move to the front of the bus.

18 / 40

The driver's manual advises you to disconnect the steering axle brake to keep the rig straight:

when it is raining

in ideal conditions

whever you feel like it

never

19 / 40

How should the trailer be lined up when preparing to back the tractor up?

about 12 degrees to the left

directly in front of the trailer

about 12 degrees to the right

directly behind the trailer

20 / 40

Air pressure should build___with a dual air system.

from 60 to 100 psi in 45 seconds

from 85 to 100 psi in 45 seconds

from 50 to 80 psi in 60 seconds

from 70 to 125 psi in 60 seconds

21 / 40

Water is drained from the compressed air tanks because:

the water will over cool the compressor

braking power is decreased due to the low boiling point of water

to keep the oil in the air compressor clean

the water could freeze in cold weather and cause braking failure

22 / 40

The front trailer supports should be____before driving away.

raised 1/2 way with the crank handle secured in its bracket

3 turns down from the top and the crank handle secured in its bracket

raised fully and the crank handle secured in its bracket

raised 1/3 of the way with the crank handle secured in its bracket

23 / 40

There must not be more than_____for engine compartment belts.

1/4 inch of play at the ends of the belt

1/2 inch of play at the end of the belts

3/4 inch of play at the center of the belt

1/2 inch of play at the center of the belt

24 / 40

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

4 psi in a minute

2 psi in a minute

3 psi in a minute

5 psi in a minute

25 / 40

Select the reason as to why you should not use the trailer hand valve while driving.

it releases too much air from the system

it could cause the trailer to skid

it should not be used on dry roads due to road conditions

the trailer brakes will not be evenly applied

26 / 40

Select the true statement in regards to unhooking the pintle hook while the converter dolly is still under the trailer.

this is recommended because it keeps the trailer from tipping over

this is not recommended because it may result in injury

this is not recommended as it could could cause damage to the pintle hook

this is recommended as it is standard procedure

27 / 40

This object should not have any missing parts, be fully raised, the crank handle is secured, and that there is no damage to the frame.

Landing gear

Release arm

Drop arm

Lifts/doors/tires

28 / 40

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

about the length of a football field or 100 yards

about two car lengths

about two truck lengths

about 1/4 mile

29 / 40

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

200 feet behind the bus.

The right and left front tires touching the ground.

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

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

30 / 40

Select the statement that best describes what the trailer air supply control does:

when pushed it it supplies the trailer with air and when pulled out it supplies the tractor with air

when pushed in it supplies the trailer with air and when you pull it out it shuts off the air supply and puts on the trailer emergency brakes

when pushed in it supplies the tractor with air and when pulled out it supplies the trailer with air

when pulled out it supplies the trailer with air and when pushed in it shuts off the air and puts on the trailer emergency brakes

31 / 40

When should air tanks be drained?

every 7 days

at every restroom break stop

they don't need to be drained

at the end of each working day

32 / 40

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

that the registration is in the cup holder

that the radio transmits a signal

that the tire tread is sufficient for the expected driving conditions

that there are no leaks in the air brake system

33 / 40

Select which vehicles are required to have a low air pressure warning signal:

all vehicles built after 2005

all vehicles built after 2010

they are optional

all operating vehicles with air brakes

34 / 40

At what pressure is the safety valve in the air compressor tank set to open?

225 psi

125 psi

150 psi

100 psi

35 / 40

Select the true statement about what the Air Compressor Governor controls:

it controls when the air compressor pumps air into the storage tanks

it controls when the brakes will be applied

it controls when the warning system is activated

it controls when air is released from the storage tank

36 / 40

While driving at night, which lights should you use as often as you can?

low beams

emergency flashers

high beams

novelty lights

37 / 40

Select the factor that is known to cause brakes to fail or fade. (more than one answer may be correct, but select only one)

excessive heat from extensive use

tire retread that is mismatched

brakes that are not aligned properly

when using the engine brake more than the brakes

38 / 40

Select the statement that describes how you could damage the landing gear.

have the tractor and trailer aligned

back under the trailer at an angle

have the trailer kingpin centered over the fifth wheel

back under the trailer in a straight path

39 / 40

Select the true statement about speed and stopping distance.

None of these answers are correct.

You need two times the stopping distance when driving at 40 mph compared to 20 mph.

Tank surge will decrease your stopping distance.

When the road is wet it will double your stopping distance.

40 / 40

Some school busses are marked with the LNG placard. What does LNG stand for?

Liquified natural gas.

None of these answers are correct.

Low-range pneumatic gearbox.

Lifted neutral graftring.

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