Practice question Where are drawbar eyes mounted? On the drawbars of the trailersOn the fifth-wheel plate of the tractorOn the tractor's front towing eye onlyOn the trailer tailboard Answer: A — On the drawbars of the trailers The correct answer is shown above. Try the full quiz for additional practice. Practice more: Bulgaria Theory Test E Practice Questions - Bulgaria Category E Driving Licence Theory Test (Trailer CE-DE) Exam →