25. 淡水製造機鹽度指示計 ( salinity indicator ) 系統，基於何種原理而操作？(A) 水導電性比例變數之原理(B) 水含微生物比例變數之原理(C) 水含氧量比例變數之原理(D)
27. 有關工作流體流經噴射泵（Injection pump）的噴嘴（Nozzle）內不同截面積處之敘述，下列何者正確？(A) 在截面積縮小處，流體的壓力上升(B) 在截面積縮小處，流體的流速下降(C
28. The principal reason for turbocharging is to increase the power output of an engine ofgiven size
31. 假設大型商用船舶柴油主機100％出力（P）時的主機轉速（N）為100 rpm，依據螺槳曲線當主機出力降為50%時，則對應之主機轉速約為多少rpm？(A) 90(B) 80(C) 70(D) 6
17. Select one from the following descriptions which is not a part of the requirement of fuelinjecti
18. In general, corrosion could be minimized by maintaining the _______ boiler water.(A) acid(B) alk
19. The equipment is consistence of a bowl which is rotated on its axis. When it is set in motion,th
20. One type of thermometer uses the principle of the Wheastone bridge, and relay on agalvanometer t
21. An investigation ________ into several engine break down incidents possibly linked tocontaminate
27. Strainers should be provided with what indicators to provide warning of the necessity forcleanin
28. 有關軸系的敘述，下列何者錯誤？(A) 中間軸的撓度（Deflection）隨著軸承跨距的增加而增加(B) 軸系的布置軸線應維持於一直線上(C) 軸系處於撓度逐漸增大情況下的轉速稱為臨界轉速（C
30. 自船艏朝向船艉方向看時，所看見的定螺槳葉面為何？(A) 正面（Driving surface；Front）(B) 壓力面（Pressure surface）(C) 推力面（Thrust sur