問題詳情

4. What sound signals should a vessel engaged in fishing, sound in reduced visibility?
(A) One prolonged followed by two short blasts at intervals of not more than 2 minutes.
(B) One prolonged blast at intervals of not more than 2 minutes.
(C) Two prolonged blasts at intervals of not more than 2 minutes.
(D) Four short blasts at intervals of not more than 2 minutes.

參考答案

答案：A
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【Mu-Hsin Hsu】評論

4. 從事捕魚的船舶在能見度降低時應發出什麼聲號？(A) 一聲長鳴，接著兩聲短鳴，間隔不超過 2 分鐘。(B) 間隔不超過 2 分鐘的一次長時間的爆炸。(C) 間隔不超過 2 分鐘的兩次長時間的爆炸聲。(D) 間隔不超過 2 分鐘的四聲短鳴。