問題詳情
34.If the inlet-air pipe of the starting valve is hotter than its counterparts, what is the correctmaintenance work for this valve?
(A)This starting valve shall be cooled.
(B)This starting valve shall be renewed.
(C)Additional lubrication for this valve is needed.
(D)This valve is operated at the normal condition. No maintenance work is required.
參考答案
答案：B
難度：適中0.576923
統計：A(5),B(15),C(3),D(2),E(0)