How Many Questions Are on Delaware's CDL General Knowledge Test?
50 questions. That count is fixed by 49 CFR Part 383, the same across every state — Delaware administers the federal format at any Division of Motor Vehicles facility, walk-in only.
A permit that lasts longer than most
The federal government owns the question count and 80% threshold. Delaware's own fee is just $5 upon issuance of the commercial learner's permit, and that permit stays valid for a full year — longer than the 180-day validity common in many other states.
Knowledge tests are walk-in only, available at any Division of Motor Vehicles facility rather than a single central location.
Three classes to choose from
Delaware offers Class A, B, and C CDLs, each requiring the General Knowledge test plus any additional endorsement tests needed for the vehicle or cargo type.
Original documents or certified copies are required for every supporting document; a photocopy isn't accepted.
Walk-in testing changes how you should plan your visit
Since there's no scheduled appointment to lock in a time slot, arriving early in the day at a less busy DMV facility can save a real wait compared to a late-afternoon visit.
Bring every document and any additional endorsement paperwork in one trip, since a walk-in visit doesn't guarantee a second same-day attempt if something's missing.
Frequently Asked Questions
How many questions are on Delaware's CDL General Knowledge test?
50 questions, the federally standard length used nationwide, not a Delaware-specific number.
How long is a Delaware commercial learner's permit valid?
One year, longer than the 180-day validity many other states use.
Do I need an appointment for the CDL knowledge test?
No — Delaware's CDL tests are walk-in only, at any Division of Motor Vehicles facility.
Ready to put this into practice?
Start a free Delaware cdl practice testLast reviewed: 2026-07-24