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Washington DC General Knowledge Test

You'll drive past the White House on Constitution Ave and need to navigate tight turns near the National Mall – our test gets you ready for that.

140
Questions
80%
To Pass
60
Minutes

140 questions · 60 min time limit · 80% to pass

Opens in a practice window — choose your mode inside.

JM

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026

All questions sourced from the official Washington DC CDL handbook and FMCSA regulations.

About the Washington DC General Knowledge Test

Driving a commercial vehicle in Washington DC isn't like driving anywhere else. You'll navigate narrow streets like Independence Ave SW, share lanes with tour buses, and dodge sudden road closures near federal buildings. Our practice test covers exactly what you need to know for the DC DMV exam.

DC weather adds another layer. Summer thunderstorms can flood underpasses on I-295. Winter ice makes the 11th Street Bridges slick. The General Knowledge test includes questions about adverse driving conditions – we've got those covered.

DC's economy runs on government contracts, tourism, and construction. That means lots of delivery trucks, dump trucks, and tour buses on the road. You'll need to know how to handle cargo, inspect your vehicle, and obey special DC traffic laws. Our 50 questions reflect those real-world demands.

Pass the DC DMV General Knowledge test on your first try. Practice with us, then show up confidently at the DC DMV's 95 M Street SW location. You've got this.

Washington, D.C.'s commercial driving is defined by dense urban traffic, restricted routing, and the I-95/I-395/I-495 Capital Beltway. The district is small but sits at the center of the Northeast freight corridor. Our general knowledge practice test mirrors the official DC DMV CDL written exam.

Commercial routing in D.C. is heavily restricted. Many streets prohibit through-truck traffic, and the district's bridges and tunnels have height and weight limits. The DC Department of Transportation enforces truck routing regulations. The exam tests route planning, clearance awareness, and urban space management directly.

Topics Covered

✓Pre-Trip Inspection – DC DMV checks your vehicle extra carefully because you'll drive near embassies and schools.
✓Basic Vehicle Control – Master tight right turns on streets like E Street NW without hitting curbs.
✓Air Brakes – You'll use them on DC's steep hills near Georgia Ave. Know the system inside out.
✓Hazardous Materials – Tourists cause chaos; you'll need to handle hazmat placards and emergency responses.
✓Adverse Driving Conditions – Rain, fog, and snow on the Potomac bridges – know when to slow down or stop.
✓Combination Vehicles – Pulling trailers through DC's alleyways? Learn coupling and uncoupling procedures.

Study Tips

Read the DC CDL handbook cover to cover. The DC DMV updates it regularly. Focus on the sections about traffic signs and signals – DC has unique signage near national monuments.

Take our practice test multiple times. Review each wrong answer. The real test has 50 questions, and you need an 80% score. We'll show you your weak spots.

Book your appointment online at dmv.dc.gov. Walk-ins are limited. Bring your ID, proof of residency, and a money order or credit card for the fee. No cash at some locations.

Washington DC Specific Information

  • DC DMV offers the CDL General Knowledge test at two locations: 95 M Street SW (main office) and 1100 4th Street SW (Anacostia). Both require an appointment. Book online at least a week ahead – slots fill fast.

    The test fee is $30 for the knowledge test. If you pass, you'll pay another $50 for your CDL permit. All fees are non-refundable. Bring a valid ID, proof of Social Security number, and two proofs of DC residency.

    You can take the test in English or Spanish. You'll get 60 minutes for 50 questions. Hit 80% or higher, and you'll get your permit the same day. No retakes for 24 hours.

  • The DC Department of Motor Vehicles requires a knowledge test for all CDL classes; the general knowledge exam is the foundation for every commercial license.
  • Many D.C. streets prohibit through-truck traffic; commercial drivers must use designated truck routes.
  • Height and weight restrictions on D.C. bridges require route planning and clearance verification.
  • The Capital Beltway (I-495) and I-95/I-395 carry heavy freight volume; scanning and space management are critical.

Frequently Asked Questions

Do I need a DOT medical card before taking the DC CDL knowledge test?
Yes. You'll need a valid DOT medical card (from a certified medical examiner) before you can take the knowledge test. DC DMV won't let you start without it.
How do I schedule my CDL skills test in DC?
You schedule the skills test online through the DC DMV portal after you pass your knowledge test. Wait times vary – some slots open within two weeks. You'll need your own truck for the skills exam.
Can I take the DC CDL general knowledge test in a language other than English?
Yes. DC DMV offers it in English and Spanish. For other languages, you can bring a translator, but the translator must sign an affidavit. Call DC DMV ahead to confirm.
What's the fee for the DC CDL knowledge test and permit?
The knowledge test itself costs $30. If you pass, the CDL permit fee is $50. Bring a debit or credit card – some locations don't take cash. No refunds.
How long is my DC CDL knowledge test result valid?
Your passed knowledge test score is valid for one year. If you don't pass the skills test within that year, you'll have to retake the knowledge test.
JM

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026 · FMCSA-compliant content