When placing more than one semi-trailer behind a tractor:

Question

For safest handling, the lightest trailer in a multiple-trailer combination should be positioned in the rear.

Accepted Answer

The lightest semi-trailer should be at the very end.

Answer

The heaviest semi-trailer should be in back.

Answer

The order of the semi-trailers does not matter.

Answer

The semi-trailer carrying the most boxes should be in the rear.