5. 海上搜救單位在夜晚回答遇險人員，表示已看見你之信號為何？(A) 三個白色星鏃火箭(B) 三個紅色星鏃火箭(C) 三個綠色星鏃火箭(D) 二個紅色星鏃火箭

7. A vessel is seen showing three lights in a vertical line; the top and bottom ones are red andthe middle one is white. What does this night time signals indicate?(A) It is a dredging ship not engaged in operation.(B) It is a vessel at anchor.(C) It is a vessel restricted her ability to manoeuvre.(D) It is a vessel engaged in a mine clearance operation.