After coupling the tractor to the first trailer of a triples rig, what is the very next step toward building the complete three-trailer combination?

Question

Accepted Answer

Move a converter dolly into position and couple the first trailer to the second trailer using the same method used for coupling twin trailers

Answer

Immediately connect the third trailer directly to the tractor's fifth wheel, bypassing the first trailer

Answer

Skip ahead to a full air brake test on all three trailers before any further coupling occurs

Answer

Attach the second and third trailers to each other first, then connect that pair to the first trailer as one unit