100年 - 100-3 專技高考_一等管輪：輪機工程（包括推進裝置、輔機與輪機英文）#45904

11.What device could permit for a higher-pressure source to supply a lower-pressure service, with an automatic response to changes in demand? (A)Constant flow fitting (B)Relief valve (C)Stop valve (D)Pressure-reducing valve

12.Which property of a fuel could affect the ability to separate water and solids from a fuel by settling and centrifuging devices? (A)Heating value (B)Density (C)Ignition quality (D)Flash point

13.In a gas turbine engine, which device is used during the compression process to enhance the specific power of the engine? (A)Recuperator (B)Intercooler (C)Air intake (D)Exhaust uptake

14.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.

15.Flash evaporators generally use a “once through” system whereby the entire seawater feed is preheated through the stage condensers and seawater feed heater and allowed to flash down through the stages. The distilled water was produced at a pressure lower than the vapor pressure of the entering heated seawater. The resultant brine from the last stage is pumped overboard. When the sea water was heated up to 85℃fro normal operation, which following statement is correct? (A)The operating pressure inside the flash evaporator is less than atmospheric pressure. (B)There is no brine produced in the flash evaporator. (C)The fresh water generated inside this flash evaporator is suitable for direct drink of any crew member. (D)The seawater is not evaporated in the flash evaporator due to low entry temperature.

16.船舶建造之初及機艙空間採型之際，其軸系中心測定由何種方法來決定？ (A)光學儀器測量法 (B)聯軸節測量法 (C)頂高試驗法 (D)同軸度試驗法

17.特種海洋探測船由於需經常改變航速、高轉矩力及高可變螺槳轉動的方向及速度，設計上最適採用何種推進系統？ (A)直接傳動系統 (B)間接傳動系統 (C)電力推進系統 (D)水翼推進系統

18.船舶進塢艉軸進行檢驗，除船廠、驗船師、監督相關人員到場外，下列何者應在現場協助檢驗？ (A)船長 (B)大副 (C)輪機長 (D)大管

19.油壓馬達除有提供進、回油的主油管外，殼體上尚有其他何種油管？ (A)直通油櫃的油管 (B)經釋壓閥通油櫃的油管 (C)經卸荷閥回油櫃的油管 (D)沒有油管

20.徑向柱塞油壓泵用於推動舵軛時，當舵角達到預定角度時，如何使舵停下來？ (A)回授機構使偏心距歸零 (B)回授機構切斷泵運轉 (C)回授機構將油壓旁流 (D)回授機構將油液改向

21.螺槳產生之推力經過艉軸、中間軸傳到推力軸承上，最終藉由推力軸承作用到何處？ (A)推力塊 (B)推力軸承座 (C)主機機座 (D)船體

22.船用真空蒸餾式淡水機裝置中，一般採用何種型式的泵來抽真空？ (A)離心泵 (B)螺旋泵 (C)抽射泵 (D)往復泵

23.離心式泵起動後，不能排出任何液體之可能原因中，下列何者錯誤？ (A)吸口濾網堵塞 (B)泵轉向錯誤 (C)進口端有空氣 (D)抽吸高度過低

24.船舶在發航前多少小時以內，船舶之操舵裝置應由該船之船員予以檢查及試驗？ (A)6 (B)8 (C)10 (D)12

25.The extreme positions reached by the piston correspond to the top and bottom dead center positions of the crank. The distance traveled between the dead centers is the swept volume of the cylinder. The volumes above the piston at the extremities of its travel are the clearance volume at top dead center position, and the cylinder volume at bottom dead center position. For a cylinder with the cylinder volume and clearance volume of 10 m³ and 0.5 m³respectively, the swept volume of cylinder is: (A)5 m³ (B)10.5 m³ (C)9.5 m³ (D)20 m³

26.下列何者位於推進軸系（Propulsion shafting system）最尾端？ (A)艉軸管（Stern tube） (B)推進器（Propeller） (C)中間軸（Intermediate shaft ） (D)中間軸承（Intermediate shaft bearing）

27. 下列軸系圖示中第④項所標示部位的名稱為：

(A)艉軸封 (B)後軸封 (C)前軸承 (D)後軸承

28.沸騰式與閃發式海水淡化裝置之工作原理的主要區別為何？ (A)兩者海水加熱和海水的真空度不同 (B)兩者海水汽化和蒸汽冷凝的真空度不同 (C)後者海水在壓力下加熱而在真空下汽化，前者都在真空條件下 (D)前者海水在壓力下加熱而在真空下汽化，後者都在真空條件下

29.蒸汽管路上的減壓閥（Reducing valve）之作動，利用的是蒸汽與彈簧作用在膜片（Diaphragm）上的： (A)壓力差（Pressure difference） (B)溫度差（Temperature difference） (C)剪力差（Shear difference） (D)動量差（Momentum difference）

30.下列何者可用以解決船用板式熱交換器受海水腐蝕威脅的問題？ (A)增加傳熱面板 (B)提高板間流體的擾動 (C)選用鈦金屬材料 (D)提高冷卻流體的流速

31.在MARPOL 73/78國際公約中規定，機艙艙底水之排洩或處理設備之水中含油量為： (A)15 ppm (B)50 ppm (C)100 ppm (D)150 ppm

32.通常小口徑低壓鋼管或銅管，採下列何種方式連接？ (A)法蘭（Flange）接頭 (B)焊接或熔接（Welding） (C)螺紋（Thread）接頭 (D)膨脹（Expansion）接頭

33.下列何種熱傳遞（Heat transfer）形式，必須透過物體的直接接觸？ (A)傳導（Conduction） (B)對流（Convection） (C)輻射（Radiation） (D)擴散（Diffusion）

34.有關離心式泵（Centrifugal pump）當中機械軸封（Mechanical seal）的敘述，下列何者正確？ (A)泵在運轉當中，軸封處漏相當程度的水量是正常現象 (B)靜止環的密封圈一般以石墨製作 (C)轉動環的密封圈一般以硬質合金或陶瓷製作 (D)現今船舶，大多以機械軸封取代填料軸封

35.依照驗船法規，鍋爐定檢及大修完畢後，均應實施水壓試驗。若工作壓力在15 kg/cm2以下的鍋爐，則該試驗壓力應是工作壓力的多少倍？ (A)至多1倍 (B)至多1.4倍 (C)1.5倍～2倍間 (D)2.1倍～3倍間

36.舵機在操作反應時間上有一定之要求，主操舵系統，在正常航速下，自一側滿舵至另一側30°，被規定完成之時間為多少秒？ (A)32 (B)28 (C)24 (D)20

37.分散式控制系統之組成包含七個部分，其中「現場控制單元」（LCU）的主要功能為何？ (A)係直接與受控系統相聯，執行預設的閉迴路控制 (B)係直接進行控制設定值之更改、控制模式之選擇，控制參數之調整等 (C)係直接與受控系統相聯，作為資料擷取或者是資料輸出之用 (D)係執行整場管理功能

38.一般而言，在狀況監視系統處理步驟中，下列何者係依據資料特性的差異而歸納為所屬的類型？ (A)資料擷取 (B)資訊淬取 (C)模式判別 (D)結果判定

39.The Advanced Turbogenerator System (ATG) extracts the heat energy from the exhaust of propulsion plant and converts this residual heat to electrical power. What are the machineries in the ATG system?①auxiliary boiler ②diesel engine ③exhaust gas economizer ④steam turbine engine (A)①②③ (B)②③④ (C)③④① (D)④①②

40.What abbreviation is referred to as the extreme position reached by a piston corresponding to the top center of the crank? (A)TDC (B)TCC (C)PDC (D)PCC

100年 - 100-3 專技高考_一等管輪：輪機工程（包括推進裝置、輔機與輪機英文）#45904

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