問題詳情
9. Your vessel is a deep draught vessel and constrained by herdraught. What sound signals you should sound in restrictedvisibility?
(A) One prolonged followed by two short blasts at intervals of notmore 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
難度：簡單0.777778
統計：A(7),B(1),C(0),D(0),E(0)