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View All PlansCommercial drivers can avoid the perils caused by costly accidents and untimely mechanical breakdowns by conducting a pre-trip inspection of their vehicles. The Arland D. Williams Jr. Memorial Bridge is no place to find out your vehicle has an operational issue. By using a checklist to confirm the safe operation of vehicle components and systems, such as the engine, brakes, tires, and windshield wipers, drivers will be compliant with federal regulation 49 CFR § 396.13. The safe operation of these vehicle features is critical to protecting lives and cargo. In addition, your knowledge of pre-trip inspections will benefit you in applying for your District of Columbia Commercial Learner’s Permit (CLP). Before applying for your Commercial Driver’s License (CDL), a CLP allows you to practice the various skills needed for commercial driving, including pre-trip inspections.
As part of the DMV CDL General Knowledge Test (one of several requirements for a CLP), your understanding of pre-trip inspections will be assessed. The official knowledge test requires you to answer 80% of the 20 to earn a passing score. Our District of Columbia DMV Pre-Trip Inspection Practice Test will enhance and expand your knowledge of the specific steps involved in conducting the process and identifying potential safety issues. By developing a firm grasp of this process, you will not need to worry about missing questions about it that could result in failing the official knowledge test. The practice test simulates the actual testing environment, which will calm any nervous feelings while boosting your confidence.
M.S., Chief Educational Researcher (ACES member)
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Many on-line resources are available to you, but the Pre-Trip Inspection Practice Test is the most fully developed one to help you understand the entire process. The practice test is interactive and provides feedback on the details you may not know or understand. In comparison, a study guide is designed to help you memorize the answers to the questions but offers no additional instruction. If you want to know pre-trip inspections inside and out, you need a resource capable of providing complete instruction. The practice test is based on the most recent District of Columbia DMV CDL driver’s manual (District of Columbia CDL Handbook) and up to date as of January 2026. It contains 20 questions pertaining to pre-trip inspections, just like those on the official knowledge test. If you get a question wrong, the practice test will provide a detailed explanation of the correct answer. This approach provides you with reliable information that you can use each day to guarantee you are operating your vehicle in a safe and responsible manner.
Your vision may get cloudy in Foggy Bottom, but you’ll find clear visibility to safe driving with practice tests for the entire nation at https://driving-tests.org/academy/drivers-license.
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We build our practice questions from the current 2026 DC Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
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