Ohio CDL General Knowledge: Driver Fitness Test 2026

Being legally fit to drive is as much a part of the job as steering, and the Ohio CDL driver fitness and hours of service test covers it thoroughly. This 2026 practice test reviews the medical certificate requirement, vision and hearing standards, illness and fatigue, and why you should never drive when a condition makes it unsafe.

Hours-of-service is the meat of this drill. You will study daily driving and on-duty limits, required rest breaks, the difference between on-duty and off-duty time, and how logging works so you stay legal and rested. Ohio's busy warehouse-to-warehouse freight lanes run on drivers who manage their clock well, so this section has real weight for CDL holders across the state.

The parent Ohio CDL general knowledge exam asks 50 questions and sets the bar at 80 percent, or 40 correct. Take this Ohio CDL driver fitness and hours of service practice test repeatedly, and keep the Ohio CDL Manual close for the exact 2026 rules.

Keep going:

• Ohio CDL Practice Test
• Ohio CDL Practice Test 2
• Ohio CDL Practice Test 3
• Ohio CDL Practice Test 4
• Ohio Air Brakes Practice Test
• Ohio CDL Combination Practice Test
• Ohio CDL Pre-Trip Inspection Practice Test
• Ohio Hazmat Practice Test
• Ohio Class A CDL Practice Test
• Ohio CDL Practice Test

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