Never | |
Whenever necessary | |
When driving on a grade | |
When the road is slippery |
The dolly tow bar will flip up | |
The trailers will decouple | |
Nothing | |
It will collapse |
Many drivers don`t look far enough ahead when driving | |
Good drivers shift their attention from side to side and near to far | |
At highway speeds you should look ahead one-quarter mile | |
All of these are true |