INLAND ONLY When power-driven vessels are crossing, what does a signal of one short blast by either vessel mean?

Correct Answer: Option C — "I intend to leave you on my port side"

33 CFR 83.34(a) specifies that one short blast indicates a vessel is altering its course to starboard. In a crossing situation, this signal serves as a clear declaration of intent to pass in a manner that leaves the other vessel on the signaling vessel's port side.