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Original questions based on the latest HawaiiHI CDL Handbook Expert-reviewed by S. Litvintchouk, M.S. (MIT), Chief Educational Researcher

Free Hawaii CDL Permit Practice Test: General Knowledge 2026

Avg. pass rate on our HI tests: 64%.
Average pass rate for this test: 59%.
Moderate
Score distribution:
90-100=>11%
80-89=>28%
70-79=>26%
60-69=>26%
<60%=>8%
Avg. first-try score: 66%
Perfect for:
First-time and renewal CDL/CLP applicants

The people of Hawaii may be separated by islands, but they all need certain products, from different islands and the mainland. That makes commercial drivers a necessity, which is why getting your CDL is a great choice. Today, you’ll be one step closer to that goal, once you practice for the real CDL written exam with our carefully crafted practice test. These 20 multiple-choice questions, based on the Hawaii Commercial Driver License Manual, cover the material the Hawaii Department of Transportation feels you must know to pass your exam, such as braking techniques, driving in special weather conditions, emergency preparedness, and more. Use the hints included with each question, and pay close attention to the questions’ explanations, as they will help you answer future questions about these topics. Good luck with your CDL exam, and remember to drive safely!

The questions and answers on our free, online Hawaii CDL General Knowledge and Endorsement permit practice tests and our other available resources are far superior to the PDF CDL manual alone. They will help prep you to pass the written tests for a Class A, B, or C Commercial Learner’s Permit (CLP) and all desired endorsements.

FAQs

How can you obtain yours?

To obtain a CDL license in Hawaii, first acquire a commercial learner’s permit (CLP) by passing knowledge tests. Hold the CLP for at least 14 days before taking the skills test. Complete CDL training (recommended) and pass the skills test. Ensure you meet all medical and legal requirements.

What can disqualify you from being eligible?

In Hawaii, disqualifications from obtaining a CDL include major traffic offenses such as DUIs, reckless driving, criminal convictions related to motor vehicle operation, and failing the required medical examination.

What is the associated cost?

The cost for a CDL in Hawaii includes application fees, which may vary by county. Additional costs include the skills test fee and CDL training program fees, if applicable.

What are the license types?

Hawaii offers different CDL classes: Class A for combination vehicles, Class B for heavy straight vehicles, and Class C for vehicles designed to transport 16 or more passengers or hazardous materials.

What is the minimum age required?

The minimum age to obtain a CDL in Hawaii is 21 for interstate driving and 18 for intrastate driving. Certain endorsements or vehicle types may have additional age requirements.

Free Hawaii CDL Permit Practice Test: General Knowledge 2026
Commercial Driver's License
Last verified:
2 HI students practicing right now 2 HI students online now
104 tests completed today statewide

Hawaii CDL General Knowledge test: quick facts

What to review before the CLP knowledge test and CDL endorsement practice

Questions
50 questions
Passing score
40 correct (80%)
Typical time
No set time limit
Focus first
Engine & Drivetrain and Weight Distribution
These are the hardest recent topics for Hawaii CDL General Knowledge learners.
Best next step
Review Engine & Drivetrain, then choose the next CDL test for your license path.

Where Hawaii learners struggle most

Based on recent Driving-Tests.org answers for this test family.

47.6% miss
Engine & Drivetrain
Vehicle Systems & Inspection - 378 recent answers

Review engine controls, shifting, gauges, retarders, and warning signs that need attention before or during a trip.

45% miss
Weight Distribution
Cargo & Towing - 734 recent answers

Review axle weights, load balance, center of gravity, and how weight affects braking, steering, and rollover risk.

43.9% miss
Tires & Wheels
Vehicle Systems & Inspection - 715 recent answers

Review tire condition, tread, inflation, lug nuts, rims, and wheel-end problems caught during inspection.

42.2% miss
Emergencies & Breakdowns
Safety & Hazards - 756 recent answers

Review emergency stops, warning devices, brake failure, tire failure, and safe roadside procedures.

Hawaii CDL requirements to know

CLP and General Knowledge requirements before skills testing and endorsements

General Knowledge comes first

Start with General Knowledge for your HI CLP. Add Combination Vehicles, Air Brakes, or endorsement tests only when they match the license class and endorsements you need.

CLP is separate from skills testing

Passing the written test does not give you a CDL. After your CLP is issued, federal rules require you to hold it for at least 14 days before the CDL skills test.

Medical certification matters early

Pick the right medical self-certification category early. If you drive non-excepted interstate, keep your DOT medical certification current with the state licensing agency.

ELDT may be required before testing

ELDT may be required before Class A or B skills testing, first-time Passenger or School Bus endorsements, or the HazMat knowledge test. Your training provider submits completion through FMCSA's Training Provider Registry.

Recommended CDL study path

Use General Knowledge as the base, then move into the CDL tests that match your license class and endorsements.

1
Pass General Knowledge first
This is the base CLP knowledge area before endorsement-specific study.
2
Add required CDL areas
Most Class A/B paths also need Air Brakes, Combination Vehicles, or other focused tests.
3
Practice only relevant endorsements
HazMat, Tanker, Passenger, School Bus, and other endorsements matter only when they match your goal.

Reviewed for legal and handbook accuracy

Steven Litvintchouk

M.S. (MIT, Columbia), Chief Educational Researcher. ACES member (Society for Editing). Verifies all 50 state tests against official handbooks weekly.

Test design and learning experience oversight

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the Hawaii DMV changes its handbook or website information. Official sources we check: 

Real users who passed the exam first try

Verified student reviews • Shared with permission

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A smarter way to study for the permit test

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