When pulling doubles in a tunnel:
Correct. Tunnel clearance can be tight for long doubles — watch overhead and side clearance, and respect any vehicle-class restrictions.
CDL Practice Question #369
Category: Doubles/Triples
Why this question matters
This question is one of 50 in our Doubles/Triples bank. The reasoning above comes directly from the AAMVA CDL Manual, the source document used by every U.S. state DMV. Memorizing the underlying rule — not just the letter answer — is what separates passing on the first attempt from a return trip and another fee.