Tennessee CDL General Knowledge: Driver Fitness Test 2026

Fatigue causes crashes as surely as ice on a bridge deck, which is why federal Hours of Service rules anchor this Tennessee CDL practice test. Expect questions on daily driving limits, mandatory rest breaks, and physical fitness standards from the Tennessee CDL Manual.

This 2026 drill covers the 11-hour driving limit, the 14-hour on-duty window, and the 30-minute break required after eight hours behind the wheel, plus the medical certification rules tied to holding a commercial learner's permit.

Hours of Service questions trip up candidates who studied vehicle systems hard but skimmed regulations. Learn the exact numbers before test day, because the Tennessee Department of Safety expects precision, and freight companies statewide expect the same discipline on the job.

Keep going:

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

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