All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans| 90-100 | => | 13% |
| 80-89 | => | 33% |
| 70-79 | => | 32% |
| 60-69 | => | 22% |
| <60% | => | 0% |
In 2020, Missouri had the 12th-highest rate (15.7) of traffic fatalities per 100,000 population. There were several reasons for this: the high rate of drunk drivers involved in fatal accidents, the poor condition of many roads and bridges, relatively lax laws on distracted driving and new drivers, and some evidently dangerous commercial routes. For example, U.S. Highway 63 is a major north-south corridor through central Missouri. Unfortunately, it’s a curvy, twisting road with sharp turns but only limited exits for side roads. Some sections of U.S. 63 are narrow two-lane roads with no barriers separating opposing lanes. Also, fog occurs often in the Ozark regions. Despite these hazards, drivers often try to use the opposing lane to pass a slower vehicle, risking a head-on collision.
On roads with hazardous driving conditions or dangerous drivers, your Commercial Motor Vehicle (CMV) must be up to the job and able to make emergency maneuvers if necessary to prevent an accident. You must be sure that your brakes, horn, lights, mirrors, steering, and tires are in good condition. Federal regulation 49 CFR § 396.13 requires you to be satisfied that your CMV is safe to drive before you drive it. To ensure this, you must conduct a thorough pre-trip inspection before your first trip of the day in that vehicle.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
To practice operating CMVs under supervision, you must obtain a Commercial Learner’s Permit (CLP). A key requirement for a CLP is to pass the official General Knowledge test on general driving theory. Your test will likely contain questions on conducting pre-trip inspections. All questions on the General Knowledge test are based on the official Missouri CDL manual (Missouri CDL Handbook 2025). It discusses pre-trip inspections in detail. You should study the manual. However, there’s a vast amount of material to learn, and it’s hard to absorb it all.
This Missouri CDL Pre-Trip Inspection Practice Test, the first of several we offer, will help clarify all that information and make it easier to understand and memorize. By intensive practice with tests like this one, you’ll soon be prepared to ace all the pre-trip inspection questions on the General Knowledge test.
Like the official General Knowledge test, this practice test is multiple choice. For each question, you must choose the best or most complete answer. Our AI assistant can help you by supplying hints and answering your own questions about commercial driving theory. If you still miss a question, the AI assistant will immediately let you know and provide an explanation of the correct answer.
Driver’s Ed is - nobody wants to set foot inside the DOR. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2025 MO 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.
We don’t collect or publish actual test items and we’re not affiliated with DOR.
