試卷名稱:110年 - 110-1 交通部航港局_船員岸上晉升訓練及適任性評估_二等輪機長:輪機長實務#128265
年份:110年
科目:一二三等輪機長◆輪機長實務
18. Propulsive efficiency: the ability of the engine or propeller shaft to be turned at a low enough speed to drive the______(and hence most efficient) propeller.
(A)smallest diameter
(B)largest diameter
(C)smallest pitch
(D)largest resistance