How Many Questions Are on the Hawaii CDL General Knowledge Test?
50 questions. That count is fixed by 49 CFR Part 383, the same across every state — Hawaii's county licensing divisions administer the federal format rather than writing their own.
Two different fees for two different tests
The federal government owns the question count and 80% threshold. Hawaii's own arrangement charges $15 for the General Knowledge test, but only $5 for each additional endorsement knowledge test — Air Brakes or Combination Vehicles, for example.
The test itself is given electronically at a county licensing office, not on paper.
Original documents, not photocopies
Every supporting document a Hawaii CDL applicant brings in must be an original or a certified copy — a photocopy isn't accepted, so it's worth confirming exact requirements with your county office before your appointment.
Once you pass, your CLP is valid for 180 days, and you still need to hold it at least 14 days before the skills test.
How our practice tests are structured
Our practice tests break results down by topic immediately, so a weak spot doesn't stay hidden inside an otherwise decent overall score.
Each question includes an explanation and a source reference, so you learn why an answer is correct instead of just memorizing a letter.
Frequently Asked Questions
How many questions are on Hawaii's CDL General Knowledge test?
50 questions, the federally standard length used nationwide, not a Hawaii-specific number.
What does Hawaii charge for the CDL knowledge test?
$15 for the General Knowledge test, and $5 for each additional endorsement knowledge test.
Are photocopies accepted for CDL application documents in Hawaii?
No — original documents or certified copies only.
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Start a free Hawaii cdl practice testLast reviewed: 2026-07-24