Virginia CDL Double/Triple Trailers Practice Test

Why does 49 CFR 383.115 include oscillatory sway and yaw stability in the T endorsement knowledge areas?

Multi-trailer combinations can develop side-to-side motion and rotation that require smooth control These are cargo billing terms They apply only to passenger buses They replace coupling procedures

Correct Answer:

Multi-trailer combinations can develop side-to-side motion and rotation that require smooth control

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