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

When you discharge an unruly passenger, you must choose a place that is:

As safe as possible, or the next stop.

Off the regular route.

The next stop.

Dark and poorly lighted.

2 / 40

Select the correct setup for shut-off valves:

the rear shut-off valves are closed and the front trailer valves are open

the front shut-off valves are closed and the rear trailer valves are open

the front and back shut-off valves are open

the front and back shut-off valves are closed

3 / 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. 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 while driving at a high a speed. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

4 / 40

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

The density of the liquid.

How much the liquid will expand in transport.

The liquid's weight.

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

5 / 40

You should check that the _____are secure, caps are on tight, and is not leaking.

coolant system

cb radio

fuel tanks

none of the answers listed

6 / 40

Which of the following is a reason to evacuate the school bus?

The bus abs warning light is on.

The bus is stalled on a rail road track, but there is no train in sight.

The bus is stalled on a shoulder of a 4-lane divided highway and it is getting hot inside.

A child set off a stink bomb inside the bus.

7 / 40

What handling effect will baffles have?

There will be an increase in slow surge.

There will be less of surging front to back.

There will be less side to side surging.

None of the answers listed.

8 / 40

Select the true statement in regards to the braking power of spring brakes.

braking power can only be tested by licensed mechanics

the braking prower increases when the brakes are hot

it depends on the adjustment of the service brakes

it will not be affect by the condition of the service brakes

9 / 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 but only in ideal conditions

True but only in rainy conditions

True

10 / 40

How do you check the connection after locking the kingpin into the fifth wheel?

pull the tractor ahead gently with the trailer brakes locked down

pull forward 25 feet, turn to the right, and then to the left

pull the tractor at a sharp right to release the trailer brakes

pull forward 25 feet, turn to the left, and then to the right

11 / 40

When driving with multiple trailers, which one should be right behind the tractor?

the trailer with the smallest road

the trailers shortest in length

the trailer longest in length

the trailer with the heaviest load

12 / 40

You should turn off your engine when loading flammable liquid unless:

The material does not need a placard.

You need the engine to run the pump.

You are loading at night and need the headlights.

You are a non-smoker.

13 / 40

The manual says you should look _____ ahead while driving.

15 to 20 seconds, at highway speeds, about a half of a mile

5 to 8 seconds, at highway speeds, about an eighth of a mile

12 to 15 seconds, at highway speeds, about a quarter of a mile

9 to 12 seconds, at highway speeds, about a quarter of a mile

14 / 40

Never refuel your bus:

With any of the windows open.

Without a static chain.

In a closed building with passengers on board.

With a higher grade of fuel.

15 / 40

Which of the following statements about special danger of loading and unloading is true?

Students should be told not to use the handrails when exiting the bus due to the possibility of causing a clothing hang up.

Students should be told to pick up any dropped objects as long as it is not under the bus.

Students should be told to leave any dropped objects and move to the point of safety out of danger and get the driver's attention to retrieve the object.

Students should be told to remain seated while the bus is in motion.

16 / 40

Which of the following statements is true about speed management?

You should be able to stop within the distance that you can see ahead.

The posted speed limit is safe for all conditions.

All of these answers are correct.

Speed limits for buses are the same as cars.

17 / 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.

parking brakes

engine brakes

hydraulic brakes

air brakes

18 / 40

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

two

four

one

six

19 / 40

Buses are prohibited from carrying all of the following hazardous materials except:

Properly secured tear gas canisters.

Materials labeled radioactive in the space occupied by people.

Properly labeled poison gas canisters.

Small-arms ammunition.

20 / 40

When a substance in the materials table is written in italics it means :

The substance is for international transport.

It is not the proper shipping name only those in roman type above it are proper shipping names.

It is the proper shipping name.

It is a foreign substance.

21 / 40

This object should not be damaged, bent, or rusted through and be evenly centered with the tires and dual wheels evenly separated.

Budd spacing or spacers

Lug bolts

All answers listed

Tire rims

22 / 40

Select the factors that can cause your brakes to fade or fail:

not relying on engine braking enough

all of these answers are correct

using the service brakes excessively

the brakes are out of adjustment

23 / 40

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

all vehicles built after 2005

they are optional

all vehicles built after 2010

all operating vehicles with air brakes

24 / 40

When stopped on a divided highway where should your reflectors be placed?

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

15 feet, 75 feet, and 150 feet toward the approaching traffic

20 feet, 150 feet, and 300 feet toward the approaching traffic

30 feet, 100 feet, and 150 feet toward the approaching traffic

25 / 40

What color and shape is the trailer air supply control?

it is an 8-sided knob that is red

it is a triangle-shaped knob that is red

it is a square knob that is yellow

it is a square knob that is red

26 / 40

There must not be more than_____for engine compartment belts.

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

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

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

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

27 / 40

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

stay off the brake and hold the steering wheel firmly

pump the brakes until you come to a stop

disengage the clutch so you are in neutral gear

accelerate quickly until you find a place to pull over

28 / 40

Select the statement that describes smooth bore tanks:

They are 1 large tank.

None of the answers listed.

They are divided down into smaller tanks.

They are divided with holes from liquid to flow through controlling surge.

29 / 40

Before backing under the trailer you should______when coupling a tractor and trailer with air lines already connected.

have the trailer brakes off

press down on the brake pedal twice

all answers listed

supply air to the trailer system and then pull the air supply knob out

30 / 40

Is this statement true or false: You do not need to use the parking brake if are leaving your vehicle for a short amount of time.

false

only when the vehicle has over 25,000 miles on it

only when the vehicle has over 60,000 miles on it

true

31 / 40

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

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

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

32 / 40

To test the security of the tractor semi trailer connection you should:

look at it carefully after pulling forward gently in a low gear against the locked trailer brakes

put the tractor in a high gear and quickly pull ahead

you don't need to check it

with the trailer brakes locked, rock the trailer back and forth

33 / 40

Select the true statement in regards to managing the space to the sides:

you should drive down the center of both lanes over the pavement markings

you should always keep your vehicle to the right side of the lane

you should try to avoid driving next to others when possible

high wind gusts will not cause any issues for doubles or triples

34 / 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

35 / 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 before product transfer, before you hook the hose.

None of these answers are correct.

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

36 / 40

What product is typically carried in a liquid tank trailer without baffles?

Fuel.

Fertilizer.

Hydrogen peroxide.

Food or milk products.

37 / 40

You should activate hazard lights within approximately how many feet before railroad crossing?

400 feet

250 feet

200 feet

300 feet

38 / 40

Which is more likely to tip over due to the crack the whip effect?

any trailer

a fully loaded trailer behind the tractor

the last trailer of a triple

the last trailer of a double

39 / 40

Select the accurate statement in regards to rolling up the landing gear to complete the coupling process.

you should grease the landing gear the increase the speed of the process

you should use a low gear until the tractor is supporting the trailer

you should use a high gear to make the process faster

you should leave the landing gear at the half way mark to make the uncoupling process easier later

40 / 40

A portable tank differs from a cargo tank in that ______.

portable tanks are bulk containers, which are not permanently attached to a vehicle

none of these answers are correct

portable tanks are bulk containers, which are permanently attached to a vehicle

cargo tanks are bulk containers, which are not permanently attached to a vehicle

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