Free CDL Practice Test
Try sample questions from all 9 MyCDLClass online courses in English and Spanish before upgrading to full access.
Sample Questions by Course
Each full course includes complete exams, answer explanations, progress tracking, and bilingual study support.
1. General Knowledge
Conocimientos Generales
What should you check during a trip inspection?
Correct Answer: Tires, brakes, and cargo securement
Unlock Full General Knowledge Course2. Air Brakes
Frenos de Aire
Air brakes use what to make the brakes work?
Correct Answer: Compressed air
Unlock Full Air Brakes Course3. Combination Vehicles
Vehículos Combinados
What should you do before backing under a trailer?
Correct Answer: Check trailer height
Unlock Full Combination Vehicles Course4. Doubles/Triples Trailers
Remolques Dobles/Triples
Which trailer should be first behind the tractor?
Correct Answer: Heaviest trailer
Unlock Full Doubles/Triples Trailers Course5. Tanker Vehicles
Vehículos Cisterna
What is liquid surge?
Correct Answer: Movement of liquid cargo
Unlock Full Tanker Vehicles Course6. HazMat
Materiales Peligrosos
What is the purpose of placards?
Correct Answer: Communicate risk
Unlock Full HazMat Course7. Passenger
Vehículos de Pasajeros
Carry-on baggage must not be stored where?
Correct Answer: In the aisle
Unlock Full Passenger Course8. School Bus
Autobús Escolar
At railroad crossings, school buses should:
Correct Answer: Stop, look, and listen
Unlock Full School Bus Course9. Pre-Trip Inspection
Inspección Previa al Viaje
When should a pre-trip inspection be performed?
Correct Answer: Before operating the vehicle
Unlock Full Pre-Trip Inspection Course