Ohio CDL General Knowledge study plan

Ohio CDL General Knowledge · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

General Knowledge

Memorize the CDL general knowledge pass threshold and Ohio-specific disqualification rules, then write them from memory on a one-page sheet.
Label every major vehicle inspection zone and component group on a blank diagram you draw yourself, using the seven-step pre-trip inspection sequence.
Recite the three braking system checks (air brake applied, leakage, low-pressure warning) in order without notes.
Define 20 core vocabulary terms such as GVWR, GCWR, axle weight, and endorsements in your own words.

A hand-drawn inspection diagram with all seven steps labeled, scored against a checklist you build from the Ohio CDL manual.

Week 2

Explain the effects of speed, weight, and road surface on stopping distance using the manual's formulas and examples.
Describe the correct response to a tire blowout, brake failure, and hydroplaning in writing, each in under 60 words.
Practice the 12-second visual lead and 4-second following distance rules and apply them to five written driving scenarios.
Identify the conditions that require reducing speed below the posted limit and list at least eight.

A written set of 10 emergency scenario responses scored by a peer or self-graded rubric, with at least 8 of 10 meeting all required steps.

Week 3

Walk through the pre-trip inspection aloud in under 15 minutes covering engine compartment, cab, and exterior.
List the required daily inspection items for brakes, lights, tires, and coupling systems.
Explain how to check air brake system pressure buildup and leakage rates and state the acceptable values.
Describe the correct procedure for coupling and uncoupling a trailer, including the tug test.

A recorded or live pre-trip inspection walkthrough that a knowledgeable evaluator scores against the manual's inspection checklist.

Week 4

Summarize hours-of-service limits for property-carrying drivers, including the 11-hour, 14-hour, and 60/70-hour rules.
Explain the difference between on-duty, off-duty, sleeper berth, and driving time and give an example of each.
Describe the CDL disqualification and serious traffic violation rules and the penalties for each.
Identify the drug and alcohol testing rules and the consequences of a positive test.

A completed practice log for a simulated 7-day trip that stays within all hours-of-service limits, checked against a scoring key.

Week 5

Explain cargo securement requirements, including tiedown counts, working load limits, and load distribution.
Describe how to check for and correct an overloaded or improperly balanced load using axle weight limits.
List the rules for transporting hazardous materials that require placards and the driver's responsibilities.
Summarize the special rules for railroad crossings, school buses, and emergency vehicles.

A one-page cargo securement and hazmat summary that correctly answers 15 practice questions on those topics.

Week 6

Complete a 50-question timed practice test and score at least 85 percent.
Review every missed question and write the correct rule and source section for each.
Explain the mountain driving, winter driving, and night driving rules from the manual.
Describe the correct response to a brake fire, cargo fire, and vehicle fire.

A scored 50-question practice test with a written error log covering every missed item.

Week 7

Complete two full-length practice exams under timed conditions and score at least 90 percent on each.
Re-drill the weakest three topic areas identified by your error logs.
Recite the pre-trip inspection sequence and emergency procedures from memory without prompts.
Review Ohio-specific rules such as speed limits, weight limits, and license classes.

Two timed practice exam scores of 90 percent or higher, with a topic-by-topic accuracy report.

Week 8

Take three final timed practice exams and score at least 90 percent on each.
Review only the remaining missed questions and confirm each rule against the manual.
Practice the pre-trip inspection one final time with an evaluator scoring every step.
Prepare your test-day checklist including required documents, fees, and appointment details.

Three final practice exam scores of 90 percent or higher plus a signed test-day readiness checklist.

Week 2: You can draw the seven-step inspection diagram from memory and explain stopping distance factors without notes.

Week 4: You score at least 80 percent on a 25-question mixed practice set covering inspection, braking, and hours-of-service.

Week 6: You score at least 85 percent on a 50-question timed practice test and have a complete error log.

Week 8: You score at least 90 percent on three consecutive timed practice exams and complete a full scored pre-trip walkthrough.