採用可變螺距推進器（CPP）進行船舶港內進、倒俥控制時，其俥葉的旋轉方向：(A)隨進、倒俥改變正、反方向(B)不論進、倒俥只有正轉方向(C)進俥時反轉、倒俥時正轉(D)可自由控制正、反轉方向

問題詳情

1.採用可變螺距推進器（CPP）進行船舶港內進、倒俥控制時，其俥葉的旋轉方向：
(A)隨進、倒俥改變正、反方向
(B)不論進、倒俥只有正轉方向
(C)進俥時反轉、倒俥時正轉
(D)可自由控制正、反轉方向

參考答案

答案：B
難度：簡單0.8
統計：A(9),B(144),C(10),D(17),E(0)

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