Home › CDL Practice Tests › General Knowledge Questions › Question 20
What should you check about the horn, and why?
- A.It matters only in city driving
- B.The horn must work so you can warn others of your presence when needed
- C.Two horns are required on all tractors
- D.The horn should be disconnected to avoid startling others
Correct answer
B. The horn must work so you can warn others of your presence when needed
Why
A working horn is a basic communication tool for warning a driver who is drifting into your lane or a person near your vehicle. If it does not work, that is a defect to report before the trip.
Manual topic: Vehicle Inspection - Cab and Visibility · From the General Knowledge practice bank (GK-020).