問題詳情

30. Which type of bearing may be lubricated by seawater in a main propulsion shafting system?
(A) Thrust bearing
(B) Ball bearing
(C) Crosshead bearing
(D) Stern bearing

參考答案

答案：D
難度：適中0.636364
統計：A(9),B(1),C(6),D(28),E(0)