Hawaii CDL Practice Test (HI) 2026

4.7 out of 5 (55 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Aloha! If you're preparing for your CDL exam in Hawaii, you've come to the right place. This online Hawaii CDL Practice Test is the perfect starting point for your preparation. With 20 carefully crafted questions, this practice test gives you a real taste of what the real DMV written test is like, regardless of whether you're aiming for a Class A or Class B driver's license, or any specific endorsements. Unlike the actual Hawaii CDL test in 2026, our practice version is untimed, allowing you to thoroughly explore each question and its nuances without the pressure of a ticking clock. This approach is particularly beneficial for deepening your understanding and building confidence. The questions you'll encounter cover a wide spectrum of topics, including pre-trip vehicle inspection, basic vehicle control, gear shifting strategies, navigating hills and downgrades, effective communication with fellow drivers, speed control, and vital drug and alcohol awareness. One of the key benefits of our Hawaii CDL general knowledge practice test is its close resemblance to the actual DMV CDL test, both in the style and substance of the questions. This similarity ensures that you are not just practicing, but are also getting acquainted with the format and type of questions you will face during the real CDL permit test in 2026. The environment we provide here is stress-free. It's a safe space for learning, where you can make mistakes and learn from them without the fear of failing. This contrasts with the high-pressure atmosphere of the actual DMV test. Remember, each question you practice here is a step closer to acing your CDL exam. Our online Hawaii CDL practice test is designed to be retaken as many times as you need. Each attempt is an opportunity to reinforce your knowledge and identify areas for improvement. Start your preparation here, and you'll be well on your way to passing the Hawaii CDL exam with flying colors!
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Sample Hawaii CDL Test Questions - General Knowledge

Question 1

A Hawaii CDL holder does not have an H endorsement. Which hazardous-material load may the driver transport under CDL endorsement rules?

  1. A A load that requires no placards and contains no listed select agent or toxin
  2. B Any load carried in a vehicle with a GVWR of at least 26,001 pounds
  3. C Any load that remains within the state
  4. D A placarded load if an H-endorsed passenger rides in the cab

Correct answer: A – A load that requires no placards and contains no listed select agent or toxin

Federal CDL rules require an H endorsement when a vehicle must display hazardous-material placards or carries any quantity of a listed select agent or toxin. If neither condition applies, the hazardous nature of the cargo alone does not trigger the H endorsement requirement. Vehicle weight, intrastate travel, or an endorsed passenger does not replace the required endorsement.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 1, “Hazardous Materials (H)”, 49 CFR § 383.93(b)(4) — Endorsements

Question 2

Which three braking systems are included in an air-brake system?

  1. A Service brake only
  2. B Parking brake only
  3. C Emergency brake only
  4. D Service, parking, and emergency brakes

Correct answer: D – Service, parking, and emergency brakes

An air-brake system consists of service, parking, and emergency braking systems. The service brakes respond to the brake pedal during normal driving, while the parking brakes are applied with the parking-brake control. The emergency system uses parts of the service and parking systems to stop the vehicle after a brake-system failure.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 5.1, “The Parts of an Air Brake System”

Question 3

A yellow diamond warning sign displaying a black cross symbol indicates:

This sign indicates _________________.
  1. A A pedestrian crossing ahead
  2. B A railroad crossing ahead
  3. C A roadside rest area ahead
  4. D A crossroad intersection ahead

Correct answer: D – A crossroad intersection ahead

The Cross Road sign warns that an intersection is ahead. Drivers should be alert for vehicles that may turn or enter from the intersecting roadway. The sign is not used to identify a crosswalk, railroad crossing, or rest area.

Source: Manual on Uniform Traffic Control Devices, 11th ed., Rev. 1 — § 2C.41, “Intersection Warning Signs (W2-1 through W2-8)”

Question 4

Before students cross the road in front of a school bus, where should they stop?

  1. A At least 10 feet ahead of the right corner of the front bumper
  2. B At least 10 feet ahead of the left corner of the front bumper
  3. C At least 10 feet behind the right corner of the rear bumper
  4. D At least 10 feet behind the left corner of the rear bumper

Correct answer: A – At least 10 feet ahead of the right corner of the front bumper

The Hawaii CDL manual directs students who must cross to move at least 10 feet in front of the right corner of the bumper while remaining away from the bus. They should then stop at the roadway’s right edge. The driver should be able to see the students, including their feet, before they proceed.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 10.2.3, “Additional Procedures for Students That Must Cross the Roadway”

Question 5

Which operators may qualify for a CDL exemption in Hawaii?

  1. A Specified military personnel operating commercial vehicles for military purposes
  2. B Qualifying government firefighters or law-enforcement officers operating designated emergency vehicles
  3. C Both A and B
  4. D Anyone operating a farm vehicle for agricultural work

Correct answer: C – Both A and B

State law exempts specified military personnel operating commercial vehicles for military purposes. It also covers qualifying federal, state, and county firefighters or law-enforcement officers operating listed fire trucks or authorized emergency vehicles under stated training and equipment conditions. There is no blanket CDL exemption for every person who operates a farm vehicle.

Source: Hawaii Commercial Driver License Manual (June 2025) — Introduction, “Are There CDL Exemptions?”, HRS § 286-235.5 — Persons exempt from licensure

Question 6

What must be checked on every tire during a vehicle inspection?

  1. A Tread depth
  2. B Overall tire condition
  3. C Proper inflation
  4. D All of the above

Correct answer: D – All of the above

Each tire must be checked for adequate tread depth, even wear, and cuts or other damage to the tread and sidewalls. Valve stems and caps should also be examined for damage or missing parts. Inflation must be checked with a tire gauge; kicking or striking the tire is not an adequate pressure check.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 11.2.4, “Wheels—Tires”

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