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

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

2 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?

3 / 40

Select whether the following statement is true or false: Front wheel brakes are good to use in all conditions.

4 / 40

Air pressure loss in a vehicle with a fully charged air system should be less than_______after the initial drop and brake applied.

5 / 40

A shipper’s certification is best described as _____.

6 / 40

You should back up slowly until____when coupling the trailer.

7 / 40

What does the service brake system do?

8 / 40

Select the true statement about double or triple trailers.

9 / 40

Select the true statement in regards to crossing your air lines on a new trailer with spring brakes

10 / 40

Commerical vehicles typically have this type of brake.

11 / 40

Select the statement that tells you how you can check the low pressure warning signal.

12 / 40

You are driving a 40 foot truck at 35 MPH, how much space (in seconds) should you keep in front of you?

13 / 40

Select the true statement about empty trucks:

14 / 40

Select when you should use the parking brake:

15 / 40

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

16 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

17 / 40

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

18 / 40

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

19 / 40

The _____of the kingpin has the locking jaw close around it.

20 / 40

A truck with baffles will handle:

21 / 40

Always try to back toward the driver's side because

22 / 40

What is the main difference between a portable tank and a cargo tank?

23 / 40

A hazard class that uses transport indexes to determine the amount that can be loaded in a single vehicle is _____.

24 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

25 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

26 / 40

What is the safest way to stop unruly behavior on the bus?

27 / 40

When inspecting the ______you are making sure that the lines and hoses are not chafed, cut, pinched, or dragged against tractor parts.

28 / 40

When is it best to wear your seat belt?

29 / 40

Select the statement that describes smooth bore tanks:

30 / 40

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

31 / 40

When using turn signals, which of the following should be avoided?

32 / 40

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

33 / 40

This object should not be worn dangerously thin where visible.

34 / 40

How should the shut off valves at the rear of the trailer be when inspecting doubles?

35 / 40

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

36 / 40

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

37 / 40

A "transport index" relates to products that are:

38 / 40

Why should you use chocks when parking a trailer without spring brakes?

39 / 40

Class A explosives must not be transported in a combination vehicle if the vehicle includes:

40 / 40

A leak rate for a straight truck or bus air brake system should not exceed _____psi per minute when the engine is off and the brakes are released.

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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.