District of Columbia CDL Class B Practice Exam 2026

This District of Columbia Class B CDL practice test targets the drivers behind buses, box trucks, and other large single units. Serving as a class B license test and class B license exam warm-up, it readies you for the written general knowledge exam the DC DMV requires before it grants a Class B rating.

Where does Class B fit among the classes of CDL drivers license? A Class B covers a single vehicle rated over 26,001 pounds, or such a vehicle towing a trailer under 10,000 pounds. It sits between Class A combination rigs and the Class C commercial driver's license, which is reserved for smaller vehicles carrying hazmat placards or 16 or more passengers. The general knowledge exam behind all of them is 50 questions with an 80 percent pass mark.

In the District, Class B drivers often operate transit and tour buses or handle urban delivery, work where careful space management is everything. Study the District of Columbia CDL Manual as you prepare, and rerun this 2026 CDL class B test until strong scores come naturally.

Keep going:

• District of Columbia Class A CDL Practice Test
• District of Columbia CDL Practice Test
• District of Columbia Air Brakes Practice Test
• District of Columbia CDL Combination Practice Test
• District of Columbia CDL Pre-Trip Inspection Practice Test
• District of Columbia Hazmat Practice Test
• District of Columbia CDL Practice Test

Every question traces back to the District of Columbia CDL Manual - skim the right-of-way and signs chapters before your retake.