Delaware CDL practice test

Getting a commercial driver's licence in Delaware starts with the CDL knowledge tests. The content is federal: every state, Delaware included, writes its tests from the FMCSA CDL manual, so the general knowledge test has 50 questions, the endorsement tests have 20 to 30, and the passing score is 80% on each. Delaware Division of Motor Vehicles administers the test; the rules behind it are published by the FMCSA. Try the free Delaware CDL practice questions below, then pick a full test.

50general knowledge questions
80%passing score on every test
8knowledge tests covered
DEpick your state once in the app

Free Delaware CDL practice quiz

Five questions from the general knowledge, air brakes and combination vehicles banks, the three tests most Delaware Class A applicants take first. Tap an answer to see if you were right and read the explanation.

0 of 5 right0 of 5 answered

After you start the engine, the oil pressure gauge should:
Before you get out to check the lights during the pre-trip inspection, you should turn on:
What is the right way to check whether a tire is properly inflated?
How do you test the parking brake during the pre-trip inspection?
To check hydraulic brakes, you pump the pedal three times and then hold firm pressure for five seconds. What should happen?

Every CDL test for Delaware drivers

Each page has a free ten-question quiz, the real question count, the 80% pass mark and what the test covers.

How the Delaware CDL knowledge test works

You take the general knowledge test first; it is required for every CDL class. Class A drivers add the combination vehicles test. Almost everyone takes the air brakes test, because skipping it puts an air brake restriction on the licence. Endorsements (hazmat, tanker, doubles/triples, passenger, school bus) each have their own knowledge test. Pass the tests and you hold a commercial learner's permit; the skills test in a truck comes later.

Fees, appointment rules and test centre locations are set by Delaware; the current ones from Delaware DMV are in the next section. What does not change is the content, and that is what PassRig drills.

Delaware CDL fees and rules

In Delaware the CDL is issued by the Delaware Division of Motor Vehicles. The figures below are taken from its own pages and were last checked on 2 November 2026. Fees and rules change, so confirm with the agency before you go.

Study from the state's own book: Delaware Commercial Driver's Manual. PassRig's questions are written from the same FMCSA manual it is based on.

What	DE	Source
Learner's permit fee	$5.00, charged when the permit is issued	dmv.de.gov
CDL fee	$55.00 for 8 years	dmv.de.gov
Permit valid for	1 year; cannot be issued or extended beyond 1 year from the original issue date	dmv.de.gov
Minimum age	18 with 1 year driving experience for Delaware-only driving; otherwise 21	dmv.de.gov
Appointment	Knowledge tests are walk-in only, at any DMV facility	dmv.de.gov
Medical certificate	From 23 June 2025 medical certificates accepted only electronically through the National Registry	dmv.de.gov
Entry-level driver training	FMCSA Entry Level Driver Training is federally required for new CDL applicants	dmv.de.gov
Also worth knowing	Hold the CLP at least 14 days before the skills test; skills tests by appointment only	dmv.de.gov

3 official pages from Delaware DMV were read for this section. Nothing on it is estimated.

Delaware CDL test questions

How many questions are on the Delaware CDL test?

The Delaware CDL general knowledge test follows the federal model: 50 questions, 40 correct to pass. Endorsement tests are shorter: air brakes 25, hazmat 30, and combination vehicles, tanker, doubles/triples, passenger and school bus 20 each.

What is the passing score on the Delaware CDL permit test?

80% on every knowledge test, the same pass mark used across the United States.

Where do I take the CDL knowledge test in Delaware?

Delaware Division of Motor Vehicles gives the test. Knowledge tests are walk-in only, at any DMV facility The test content itself comes from the FMCSA CDL manual.

How much does a CDL permit cost in Delaware?

Delaware DMV lists the commercial learner's permit fee as $5.00, charged when the permit is issued. Fees change, so check the agency's fee page before you go.

Does PassRig have Delaware CDL practice questions?

Yes. Pick Delaware in the app and you get practice sets and mock exams built from the knowledge test content your state uses, with the real counts and the 80% line.