How Many Questions Are on New Hampshire's CDL General Knowledge Test?
50 questions. That count is fixed by 49 CFR Part 383, the same across every state — New Hampshire administers the federal format rather than writing its own.
A federal test, with a state-level prerequisite
The federal government owns the question count and 80% threshold. New Hampshire's own requirement on top of that is holding a valid noncommercial Class D license before applying for a CDL at all.
Commercial driving within New Hampshire only is allowed at 18, but federal rules require 21 to cross state lines or transport hazardous materials.
What it costs to apply
New Hampshire charges $20 for a commercial learner's permit, valid for 6 months, and $60 for the CDL itself, plus $10 for each additional endorsement.
Every supporting document must be an original or certified copy — a photocopy isn't accepted, so confirm exact requirements with the DMV before your appointment.
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 New Hampshire's CDL General Knowledge test?
50 questions, the federally standard length used nationwide, not a New Hampshire-specific number.
Do I need an existing license before applying for a CDL in New Hampshire?
Yes — a valid noncommercial New Hampshire Class D license is required before applying.
What does New Hampshire charge for the CDL itself?
$60 for the CDL, plus $10 for each additional endorsement.
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Start a free New Hampshire cdl practice testLast reviewed: 2026-07-24