Hawaii CDL Class B Practice Test (HI) 3

5 out of 5 (39 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Aloha! E komo mai to your third Hawaii CDL practice test, a crucial step for aspiring Class B CDL holders in Hawaii. This test, with its 20 comprehensive CDL test questions, is an invaluable tool in preparing for the real exam. With a need to correctly answer at least 16 questions, it offers a robust challenge to ensure you're well-prepared. Our Hawaii CDL class B practice test is meticulously crafted to mirror the actual exam experience. It includes a diverse range of subjects pertinent to Class B CDL applicants. You'll find DMV questions on pre-trip vehicle inspection, mastering basic vehicle control, and nuances of shifting gears - yes, we cover downshifting too! Additionally, you'll navigate through scenarios involving hills and steep downgrades, effective communication with fellow drivers, speed control, and important aspects of drug and alcohol awareness. What sets our 2026 Hawaii CDL general knowledge practice test apart is its focus on customizable learning experiences. You can tailor your practice sessions to focus on areas that need more attention, repeat tests for improved performance, and schedule your learning at your convenience. This flexibility is crucial in mastering the diverse topics covered in the real CDL permit test. Moreover, our Hawaii CDL practice test doesn't just rely on theoretical knowledge. It integrates real-life driving scenarios, which helps in applying what you've learned in practical situations. This approach is not only engaging but also immensely beneficial in preparing you for real-world driving challenges as a CDL holder. For those who are visual learners, our CDL drivers practice test comes equipped with visual aids, including images of road signs and traffic scenarios. These aids enhance understanding and retention of information, making your learning process more effective and enjoyable. Remember, this Hawaii class B CDL practice test is a tool for your success. Each question is an opportunity to deepen your understanding and get one step closer to achieving your Class B CDL. So, dive in, learn at your pace, and let's get you ready for the road!
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Sample Hawaii CDL Test Questions - General Knowledge

Question 1

Your vehicle is disabled on a straight, level undivided highway with traffic traveling both ways. How should the three warning triangles be placed?

  1. A One within 10 feet of the vehicle, one about 100 feet ahead, and one about 100 feet behind
  2. B At 10, 100, and 200 feet behind the vehicle
  3. C One 100 feet ahead and two at 100 and 200 feet behind
  4. D At 100, 200, and 500 feet behind the vehicle

Correct answer: A – One within 10 feet of the vehicle, one about 100 feet ahead, and one about 100 feet behind

On an undivided highway carrying traffic in both directions, one warning device marks the vehicle from within 10 feet of a front or rear corner. The other two devices are placed approximately 100 feet ahead of and 100 feet behind the vehicle. Different placement is required near a hill, curve, or other obstruction that limits visibility.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 2.5.2, “When Parked at the Side of the Road”

Question 2

To prevent unsafe front-to-rear cargo imbalance, the load should be:

  1. A Concentrated over the steering axle
  2. B Shifted as far rearward as possible
  3. C Distributed to maintain proper weight on each axle
  4. D Stacked high above the vehicle floor

Correct answer: C – Distributed to maintain proper weight on each axle

Cargo should be distributed so that the steering and drive axles carry appropriate weight. Excessive steering-axle weight can make steering difficult, while moving the load too far rearward can leave the front axle too light for safe steering. Too little weight on the drive axles can also reduce traction and allow the drive wheels to spin.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 3.2.4, “Balance the Weight”

Question 3

What is the minimum tread-groove depth for a commercial-vehicle tire that is not on a front wheel?

  1. A 4/32 inch
  2. B 2/32 inch
  3. C 7/16 inch
  4. D 3/8 inch

Correct answer: B – 2/32 inch

The Hawaii manual matches the federal minimum of 2/32 inch in a major tread groove for tires other than those on the front wheels. Front-wheel tires on a bus, truck, or truck tractor require at least 4/32 inch. Measurements are not taken at tie bars, humps, or fillets in the tread groove.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 2.1.3, “Tire Problems”, 49 CFR § 393.75(b), (c) — Tires

Question 4

Which practices should you use when backing a commercial vehicle?

  1. A Turn toward the driver’s side whenever possible
  2. B Use a helper whenever possible
  3. C Inspect the intended path before backing
  4. D All of the above

Correct answer: D – All of the above

Before backing, inspect the intended path and check side and overhead clearance. Back slowly while using both mirrors, and turn toward the driver’s side whenever possible because that side provides a better view. Use a helper when available, agree on hand signals in advance, and make sure the helper remains visible.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 2.2.4, “Backing Safely”

Question 5

If your commercial vehicle catches fire, you should pull into a service station because firefighting equipment may be available there.

  1. A True
  2. B False

Correct answer: B – False

A vehicle on fire should not be driven into a service station. Get off the road, stop in an open area, and remain away from buildings, vegetation, other vehicles, or anything else that could ignite. Notify emergency services and provide your location after securing the situation as safely as possible.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 2.21.3, “Fire Fighting—Pull Off the Road”

Question 6

Which listed factors affect a person’s blood alcohol concentration?

  1. A The amount of alcohol consumed
  2. B How quickly the alcohol is consumed
  3. C The person’s body weight
  4. D All of the above

Correct answer: D – All of the above

The CDL manual identifies the amount of alcohol consumed, the speed of consumption, and body weight as factors affecting BAC. Consuming more alcohol or drinking it more quickly generally produces a higher concentration. A smaller person may reach the same BAC after consuming less alcohol than a larger person.

Source: Hawaii Commercial Driver License Manual (June 2025) — § 2.22.1, “What Determines Blood Alcohol Concentration?”

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