How Many Questions Are on the Nevada CDL General Knowledge Test?
50 questions. That count is fixed by 49 CFR Part 383, the same across every state — the Nevada DMV administers the federal format rather than writing its own.
What Nevada actually controls
The federal government owns the question count and 80% threshold. Nevada's own contribution is a $57.50 CLP fee and a CLP validity period of 180 days.
Depending on the class and endorsements pursued, additional tests — like Air Brakes or Combination Vehicles — may also apply on top of the General Knowledge test.
A 14-day hold before the skills test
Once issued, a Nevada CLP must be held for at least 14 days before the skills test can be scheduled.
A first-time Class A or B applicant, or anyone upgrading Class B to A or pursuing certain endorsements, must also complete training from a provider listed in the federal Training Provider Registry.
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 Nevada's CDL General Knowledge test?
50 questions, the federally standard length used nationwide, not a Nevada-specific number.
What does the Nevada CLP cost?
$57.50.
How long is a Nevada CLP valid?
180 days from issuance.
Ready to put this into practice?
Start a free Nevada cdl practice testLast reviewed: 2026-07-22