32. 船舶航行經年後，為了確定船舶單軸推力軸系之狀態，主要應檢查之項目為何？ (A) 軸系中心線彎曲度 (B) 軸系中心線平行度 (C) 軸系兩端軸的高度誤差 (D) 軸系中心線偏差度和兩端軸的同軸度

39. Check valves must be provided on pump suctions to prevent pumping through the standby pump to the sump. Pump isolating valves should be provided to permit underway repair of either pump. Based on these descriptions, which is the correct statement？ (A) The isolating valves must be non-return valves. (B) The check valve also needs to be positioned at the pump exit in order to improve the pumping efficiency. (C) The check valve allocated on pump suctions permits no flow from the idle pump into the sump. (D) The check valve allocated on pump suctions permits the isolation of the running and standby pumps so that the isolating valves could be ignored for the emergency operation.

32. 船舶航行經年後，為了確定船舶單軸推力軸系之狀態，主要應檢查之項目為何？
(A) 軸系中心線彎曲度
(B) 軸系中心線平行度
(C) 軸系兩端軸的高度誤差
(D) 軸系中心線偏差度和兩端軸的同軸度

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