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

Shifting into a lower gear and removing your foot off of the accelerator to slow your vehicle is known as?

2 / 40

The best way to have control on curves is:

3 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

4 / 40

The purpose for the emergency air line is:

5 / 40

What is the next step after securing the bus when you have an unruly child on board?

6 / 40

What do yo need to do before supplying air to the air tanks of the second trailer?

7 / 40

Operating a motor vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle is known as?

8 / 40

You are inspecting the_____when looking for broken welds, cracks, holes, or other damage to the longitudinal frame member, cross members, box, and floor.

9 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

10 / 40

Select the true statement about dual air brake systems.

11 / 40

Which of the following is the proper definition of a cargo tank?

12 / 40

Which of the following is a clue another driver is impaired:

13 / 40

How far away are you required to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?

14 / 40

The most stable tanker shape is:

15 / 40

How often should you drain your air tanks?

16 / 40

What will happen right away should the service air line come apart but the emergency line is intact while driving a combination vehicle?

17 / 40

To find out if a shipment includes a hazardous material, you should:

18 / 40

What do you need to do to supply air to the air tanks of the second trailer?

19 / 40

There must not be more than_____for engine compartment belts.

20 / 40

Do converter dollies have spring brakes?

21 / 40

The minimum tire tread depth for front tires is:

22 / 40

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

23 / 40

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

24 / 40

Which of the following are possible causes of tire fires?

25 / 40

What is the most important reason for doing a school bus inspection?

26 / 40

What handling effect should you expect when your tank has baffles?

27 / 40

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

28 / 40

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

29 / 40

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

30 / 40

Which of the following statements about "Radioactive" labels is true?

31 / 40

Why is the proper adjustment and use of all mirrors so vital to the safe operation of the school bus?

32 / 40

Select the action that is not appropriate when driving on slippery roads:

33 / 40

This object should not be spliced, cut, chafed, or worn through to allow steel braid to show.

34 / 40

All standing riders must stay:

35 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

36 / 40

Tires should should be replaced:

37 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

38 / 40

Select the statement that is not part of the air-brake system:

39 / 40

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

40 / 40

The air leakage rate for combination vehicles should not be more than _ psi a minute.

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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.