CDL Practice Test


This site is available to take practice questions to prepare for the Hawaii CDL test. The tests are free and you are able to take them as many times as you would like as you look to obtain a Hawaii CDL. 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. 

1 / 40

Overhead inside mirror is used to:

2 / 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?

3 / 40

Which of the following is NOT an acceptable type of marking for hazardous materials?

4 / 40

Which of the following hazard classes utilizes a transport index in order to determine how much of it can be loaded on a single vehicle for transport?

5 / 40

Select the true statement in regards to stopping distance and speed:

6 / 40

When driving on a clear night with the vehicle lights on, your speed should be such that you can stop within _____.

7 / 40

Tankers used to transport hazardous materials on vehicles must be marked with:

8 / 40

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

9 / 40

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

10 / 40

Which of the following statements about loading and unloading cargo tanks is false?

11 / 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.

12 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

13 / 40

An oncoming vehicle keeps its high beams on. You should deal with this hazard by:

14 / 40

What are you checking when looking at the lubrication level on a dipstick?

15 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

16 / 40

Tires should should be replaced:

17 / 40

Select how you can tell if your vehicle is equipped with an anti-lock braking system:

18 / 40

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

19 / 40

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

20 / 40

A safe haven is ______.

21 / 40

On a drawbridge, you do not need to stop, but must slow down and make sure it's safe, when:

22 / 40

When should you check your mirrors for a lane change?

23 / 40

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

24 / 40

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

25 / 40

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

26 / 40

Select the load of the trailer that will require the shorter distance to stop.

27 / 40

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

28 / 40

What is most likely to occur when driving a tanker truck and the front wheels begin to skid?

29 / 40

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

30 / 40

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

31 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

32 / 40

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

33 / 40

When should air tanks be drained?

34 / 40

When driving tank vehicles you should:

35 / 40

What is the best way to figure out how many seconds of following distance you have?

36 / 40

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

37 / 40

Placarded vehicles must carry which type of fire extinguisher?

38 / 40

The baffles in a tank trailer help to control:

39 / 40

You should_____when an emergency requires you to quickly stop your tanker.

40 / 40

What are the three hazard classes should NOT be loaded into a trailer that has a heater air conditioner unit?

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CDL Category Practice Tests

CDL Practice Test

How To Get A hawaii Commercial Drivers License

Applicants can apply for a CDL at age 18. Only applicants over the age of 21 years old can drive commercial vehicles in other states than Hawaii. Hazmat Endorsements and transporting persons is restricted to those applicants that are 21 years or older. Those applying for a commercial driver’s license must supply a DOT medical card and pass a vision assessment at the Hawaii State testing facility.

If any of the following statements are true about an applicant, they are automatically disqualified from receiving a CDL.

  • Having more than one driver’s license.
  • Being disqualified from commercial driving privileges in another state.
  • Having a driving impaired conviction in a commercial vehicle in the past 24 months.
  • Having a suspended, denied, canceled, or revoked license.

Applicants must successfully pass both a knowledge test and a practical skills test in order to be eligible for their CDL.

H – Hazardous Materials
X – Tank with Hazmat
N – Tank Vehicles
P – Passenger Vehicle
T – Triples / Double Rigs

Hit the Open Road

hawaii CDL License Test Tips

To obtain a CDL, all applicants must complete a knowledge test. This knowledge test contains 50 questions about the topic of commercial driving. All applicants for Class A CDLs must complete an additional 20 questions about combination driving. Those looking to obtain endorsements or to remove the Air Brake restriction will need to take additional assessments. Those seeking the Passenger, Doubles/Triples, and Tank Endorsements will need to pass a 20 question test. Those looking for the School Bus Endorsement and/or the Air Brake Restriction Removal will need to complete a 25 question test. The Hazmat Endorsement requires successful completion of a 30 question test. A passing score is marked at 80 percent or above.

Applicants must successfully complete a three-section skills assessment. This includes a vehicle inspection, driving test, and basic control skills test. This showcases the applicant’s ability to properly operate a commercial vehicle. Applicants must utilize the vehicle they are seeking an endorsement with to obtain their CDL endorsement.

Additional Information

Hawaii Division of Motor Vehicles Information

The State of Hawaii County of Hawaii Vehicle Registration and Licensing Division regulates CDL requirements and testing in Hawaii. To get more information contact them via:

Website: http://www.hawaiicounty.gov/finance-cdl-general-info

Phone:  808.961.2222

Additional HAWAII CDL Helpful Links

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