Florida CDL Practice Test 2026

Practice question bank

Sample questions

1. Before driving a vehicle with a dual air brake system, you must wait for the air compressor to build a minimum of ____ in both the primary and secondary systems.

   • 25 psi
   • 50 psi
   • 75 psi
   • 100 psi ✓

   Vehicle Equipment & Safe Operation · Answer: D · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 5 – Air Brakes, p. 85

2. Poor weight balance:

   • Improves a vehicle's handling.
   • Makes handling a vehicle more difficult. ✓
   • Increases a driver’s ability to steer.
   • Makes a vehicle easier to stop.

   General Driving Knowledge · Answer: B · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 3 – Transporting Cargo Safely, p. 74

3. To make driving at night easier, you should:

   • Keep your interior light turned on.
   • Adjust the instrument panel lights as dimly as you can while still being able to read the gauges. ✓
   • Not take a nap before driving.
   • Use only your low beam headlights.

   Bad Weather & Night Driving · Answer: B · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 2 – Driving Safely, p. 55

4. Buses must never carry ____ in the space occupied by passengers.

   • Small arms ammunition
   • An oxygen tank
   • Radioactive materials ✓
   • Passengers who are drunk

   Sharing the Road · Answer: C · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 4 – Transporting Passengers Safely, p. 78

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