What is the 7-step inspection procedure adapted for doubles and triples?
a.It only applies to single trailers
b.The same basic 7-step method used for any commercial vehicle, with additional checks on coupling devices, converter dollies, and all trailer connections
c.A simplified 3-step check for multiple trailers
d.An inspection done only at weigh stations
Explanation
The 7-step inspection method for doubles and triples follows the same basic procedure as for any commercial vehicle but includes additional checks on all coupling devices, converter dollies, safety chains, air and electrical connections between all units.