Whistle signals indicating course changes must be sounded ______

  • 2024-01-21 14:23:07
  • YY6
  • 1

Whistle signals indicating course changes must be sounded ________.

A.in fog

B.when vessels are in sight of one another

C.when you can be reasonably sure of hearing the other vessel's acknowledgment

D.every time you alter course

正确答案是B