BOTH INTERNATIONAL & INLAND Which shapes is a vessel conducting mine clearing operations required to exhibit?

Correct Answer: Option D — one ball near the foremast and one ball at each fore yard

Rule 27(f) mandates that a vessel engaged in mine clearance operations shall exhibit three balls in a vertical line or three all-round green lights, plus one ball near the foremast head and one at each fore yard. These signals warn other vessels of the extreme danger posed by mine clearance.