Delaware General Knowledge
Everything you need to pass the Delaware CDL General Knowledge test: a study guide based on the official CDL manual, a quick review of the key facts, 81 practice questions with answers, and narrated audio you can listen to anywhere. Instant access for 120 days.
Overview
General Knowledge covers the core rules, safe driving practices, vehicle inspection steps, and cargo basics every commercial driver must know before getting behind the wheel.
General Knowledge for Delaware CDL Applicants
Delaware handles heavy chemical and pharmaceutical freight along the busy I-95 Northeast corridor. With chemical and pharmaceutical manufacturing, port and container freight, food distribution driving much of the freight in Delaware, the General Knowledge material below is the part of the Delaware CDL that those employers screen for first.
Every Delaware CDL applicant starts with the General Knowledge test at Delaware Division of Motor Vehicles. It is the one exam nobody can skip, and it is also where most first-attempt failures happen, so it is worth treating it as the main event rather than a formality.
Where Delaware drivers use this
- Automotive parts: straight-truck parts delivery on local routes
- Transit and school districts: city buses and full-size school buses across Delaware (P and S endorsements)
- Chemical and pharmaceutical manufacturing: light HazMat delivery routes when the load requires placards
- Smaller school buses and activity buses for Delaware school districts (P and S endorsements)
- Shuttle, paratransit, and church or community vans built for 16 or more passengers
Most Delaware CDL work runs the I-95, I-295 corridors and the Dover area, so the examples in the practice questions lean on the vehicles and loads you will see there. Weather, grades, and traffic on those routes are exactly the kinds of scenarios the Delaware General Knowledge and skills tests describe.
Delaware rules worth knowing
- Delaware DMV states its CDL manual covers CDL requirements, CDL procedures, testing requirements, and basic knowledge needed to obtain a CDL.
- Delaware DMV notes CDL renewals may only be completed within 30 days before expiration.
- Delaware began implementing the modernized CDL skills test at DMV locations on February 26, 2025.
- Delaware describes Class A by combination registered, actual, or GVWR over 26,000 pounds while towing a vehicle with registered, actual, or GVWR over 10,000 pounds.
Testing, appointments, and fees are handled by Delaware Division of Motor Vehicles. See the Delaware CDL classes and Delaware endorsements pages for the full licensing picture.
Common Delaware questions
- Is this General Knowledge material specific to Delaware?
- Yes. The knowledge test content is federal (49 CFR 383), so the questions apply in Delaware, and this page adds Delaware details: where you test (Delaware Division of Motor Vehicles), which Delaware industries use this license, and the Delaware corridors the examples are drawn from.
- Where do I take the General Knowledge knowledge test in Delaware?
- Knowledge tests are given by Delaware Division of Motor Vehicles. Bring your Delaware driver license, proof of residency, and your medical certificate; most Delaware offices require an appointment for CDL testing.
- How long do I have to study the Delaware General Knowledge material?
- Access lasts 120 days from purchase, which is enough to study, take the practice tests, and pass at Delaware Division of Motor Vehicles with time to spare. Retakes in Delaware are allowed after a short wait, so a second attempt is covered too.
When Is This Useful?
The General Knowledge test is required for every CDL class and every endorsement. You cannot earn a Class A, B, or C permit without passing it first.
Who Is This For?
Anyone applying for a CDL for the first time, and drivers who need a refresher before adding a class or endorsement.
Topics Covered
CDL General Knowledge covers the rules of the road specific to commercial vehicles: following distance, speed limits, lane changes, and right-of-way. These questions appear on every CDL written test regardless of class or endorsement.
Drivers must understand how to properly secure, distribute, and inspect cargo before moving. Overloaded or unsecured loads are a leading cause of CDL violations and roadside out-of-service orders.
Federal law requires CDL holders to complete a pre-trip inspection and certify the vehicle is safe before moving. The test covers specific inspection steps in the correct sequence as examiners expect to see them performed.
Knowing how to respond to brake failures, tire blowouts, skids, and accident situations is tested on the General Knowledge exam. Proper emergency response can prevent a minor mechanical issue from becoming a serious crash.
Commercial vehicles need significantly more space to stop, turn, and maneuver than passenger vehicles. Understanding following distance, clearance heights, and sight lines is critical for both the written test and safe operation.
Included in these packages
Get General Knowledge plus more, for less than buying separately.