問題詳情
38.For a ship with direct-connected low-speed propulsive engine, which is usually the dominantsource of torque variation for the shafting system?
(A)Engine power variation
(B)Axial displacement of thrust bearing
(C)Torsional vibration of propulsive shaft
(D)Longitudinal vibration of engine
參考答案
答案：C
難度：簡單0.714286
統計：A(3),B(1),C(15),D(2),E(0)