申論 1離心式泵的出口水頭或是出口壓力的增加,可由幾種方法來達成?請試述之。(20 分)
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申論 2船舶用真空沸騰式造水機在起動與停機步驟程序的操作及應注意事項為何?請試述之。(20 分)
申論 3淨油機運轉時,油自水側排出可能的原因及其應採處理方式為何?請試述之。(20 分)
申論 4冷凍系統耗油量增大,其可能的原因與處理之對策?請試述之。(20 分)
申論 5請將下列英文譯成中文:(20 分)Meanwhile, the treated water is discharged from the bottom of the separator,through the oil content monitor and then either overboard or to the clean bilgetank, depending on residual oil content. Effluent will only be dischargedoverboard when its oil content is less than 15 ppm. Eventually the oil layer atthe top of the separator increases sufficiently to trip a sensor which causes theseparator drain solenoid to open. The accumulated oil is forced out throughthe oil discharge valve to the sludge tank.