Open the shut off valves of both trailers | |
Open the shut off valves of the second trailer and close the shut off valves of the first trailer | |
Open the shut off valves of the first trailer and close the shut off valves of the second trailer | |
Close the shut off valves of both trailers |
Place the heaviest trailer directly behind the tractor | |
Place the longest trailer directly behind the tractor | |
Place the shortest trailer directly behind the tractor | |
Place the lightest trailer directly behind the tractor |
All of these are correct | |
More skill than driving with a single trailer | |
More following distance than driving with a single trailer | |
More care when driving in bad weather and on grades |