Question If in a no passing zone: Answers A motorcycle may still pass another vehicle. A motorcycle is not allowed to pass another vehicle. A motorcycle may pass another vehicle if the pass can be completed before another vehicle approaches. A motorcycle may pass on the shoulder. Explanation Passing is prohibited in no passing zones. It is also prohibited to pass by riding off of the main-traveled portion of a roadway. Take a FREE Practice Test Now This questions appears in the following tests: Oregon Practice Test