16.What is the function of thrust bearing?(A)Preventing lateral movement of the slow speed gear. (B)
17.Lubricant oil filters remove contaminants more efficiently if the oil-bearing filtered is .(A)und
18.To synchronize two A.C generators, they requires their voltages to be and in phase.(A)zero (B)eli
19.Cooling of cylinder liner is often referred to as cooling.(A)piston (B)sleeve (C)central (D)jacke
20.For an ordinary four-stroke diesel engine, the intake valve is closed .(A)after TDC (Top Dead Cen
21.當艉軸管軸封裝置內的襯套與封環接觸的位置磨出溝槽時，為了避免光車超過限度，其補救辦法為何？ (A)將凹槽噴鋼處理 (B)以塑鋼暫時填平 (C)重新將襯套表面處理 (D)在法蘭側添加一適當厚度的距
24.ALFA-LAVAL淨油機於高速運轉，排渣（Sludge discharge）過程時，下列何種設備，除隨著淨油機高速旋轉外，還可上、下移動？ (A)比重盤（Gravity disk） (B)有翼
31.Usually, “gauge pressure” means .(A)vacuum (B)the excess of pressure above atmosphere (C)absolute
32.An indicator diagram is a pressure-volume graph taken from the pressure in the of a runningengine