96年 - 96-3 航海專技特種考試_一等管輪：輪機工程（包括推進裝置、輔機與輪機英文）#51091

科目：輪機工程(概要)（包括推進裝置、輔機與輪機英文） | 年份：96年 | 選擇題數：40 | 申論題數：0

試卷資訊

所屬科目：輪機工程(概要)（包括推進裝置、輔機與輪機英文）

選擇題 (40)

1. 設計螺槳時，葉片數目的選擇依下列那兩項條件決定？ (A) 效率、重量(B) 速度、平衡(C) 形狀、速度(D) 震動、效率

2. 建造中之新船利用何種方法確定軸系之理論中心線位置？ (A) 直線法(B) 斜度法(C) 曲線法(D) 光學儀器法

3. 三段效用式造水機，其第三段之加熱熱源為何？ (A) 第一段產生的淡水(B) 第二段產生的蒸汽(C) 第三段產生的淡水(D) 第四段產生的蒸汽

4. 淡水機裝置中利用下列何種性質量測淡水的含鹽量？ (A) 淡水導電性(B) 淡水 pH 值(C) 淡水比重(D) 淡水凝結溫度

5. 啟動淡水機的步驟中，最先要執行的操作為何？ (A) 開啟加熱熱源(B) 供給冷卻水(C) 抽真空(D) 開啟淡水泵

6. 分（淨）油機和電動機之間，最有可能採用下列何種聯軸器連接？ (A) 機械聯軸器(B) 皮帶聯軸器 (C) 彈性聯軸器 (D) 萬向聯軸器

7. 下列何處常設空壓機之氣液分離器？ (A) 級間冷卻器後 (B) 後冷卻器前 (C) 後冷卻器後 (D) 可放在任何處

8. 軸向柱塞泵在柱塞與缸體之間磨損加大，造成的結果是： (A) 泵體發熱 (B) 流量降低 (C) 產生雜音 (D) 軸向力難以平衡

9. 內降熱器（Internal desuperheater）位於鍋爐的： (A) 煙道內 (B) 爐膛內 (C) 汽鼓內 (D) 水鼓內

10. 依 SOLAS 操舵裝置之規定，在何處應設置可切離自駕駛台操作之主、輔操舵裝置之控制系統？ (A) 羅經甲板 (B) 機艙控制室 (C) 舵機房 (D) 艉樓甲板

11. The term compression-ignition refers to the fact that the fuel is ignited only by the high temperature of the compressed charge, and is one characteristic of the diesel engine cycle. Based on this description, which statement is correct? (A) When the fuel is ignited by the high temperature of expansion stroke, the engine is referred to as the compression ignition engine. (B) When the ignition of fuel is provided by the spark, the engine is referred to as the compression ignition engine. (C) When the fuel is ignited by the temperature of compressed stroke of a reciprocal engine, it is called the compression ignition engine. (D) When the compression charge could provide the high temperature for ignition, the fuel can not be automatically ignited in a compression ignition engine.

12. Magneticbearings are used in applications where noise and vibration are important considerations or where lubricants are not acceptable. Like the hydrostatic bearings they do not require shaft rotation to generated bearing support forces. The rotor is floated in the space and levitated by magnetic forces, which are generated within the bearing by magnets. Therefore, (A) the air is necessary to be used as the lubricant to provide the film pressure for magnetic bearings. (B) the air is necessary to be used as the lubricant to reduce the noise and vibration for magnetic bearings. (C) the shaft rotation is important for generating the supporting forces for the magnetic bearings. (D) the magnetic forces are generated in the magnetic bearing to support the load of bearing.

13. 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.

14. In a centrifugal blower in coming air is directed into the eye of a rotating open, semiopen, or closed impeller that increases the air’s velocity and static pressure. After passing through the impeller, the air is often discharged radially through a stationary diffuser in which a portion of the velocity head is converted into static pressure head, and then through a tangential outlet port in the blower’s casing. Based on these descriptions, which is the correct statement? (A) The conversion of flow kinetic energy into static pressure head takes place in the stationary diffuser. (B) The enthalpy of discharged gas is reduced after passing through the centrifugal blower. (C) The suction head for the centrifugal blower is automatically positive due to the eye of blower. (D) The static pressure is reduced in the impeller but to be recovered in the eye of centrifugal blower.

15. 推進傳動軸系在工作時所承受的各項應力，下列何者不正確？ (A) 承受摩擦力及腐蝕作用 (B) 承受扭應力及彎曲應力 (C) 承受剪應力及附加應力 (D) 承受壓應力及拉應力

16. 船舶軸系各線軸，其工作軸頸主要損壞的情形是那一種？ (A) 磨損 (B) 腐蝕 (C) 斷裂 (D) 裂紋

17. 冷凍系統中，滑油分離器裝設在下列那兩個元件之間？ (A) 壓縮機、凝結器 (B) 凝結器、膨脹閥 (C) 膨脹閥、蒸發器 (D) 蒸發器、壓縮機

18. 設某地大氣壓為 755 mmHg，真空蒸餾式造水機中的錶壓力為 –155 mmHg 時，請問絕對壓力為多少？ (A) 600 mmHg (B) 755 mmHg (C) 760 mmHg (D) 910 mmHg

19. 離心泵葉輪的平衡孔開在下列何處？ (A) 葉緣上 (B) 葉根上 (C) 平衡盤上 (D) 雙吸葉輪上

20. 油壓馬達低速時，產生爬行現象的主要原因為何？ (A) 油壓馬達暫態排量不均 (B) 低速時扭矩太大 (C) 摩擦力太大 (D) 低速時扭矩與摩擦力皆太大

21. 水位計吹放（Blow down）之步驟為何？ (A) 汽側、水側同時吹放 (B) 先吹放水側，再吹放汽側 (C) 先吹放汽側，再吹放水側 (D) 無規定

22. During ____, the ship is secured to the pier with mooring lines while the main engines are used to drive the propeller. (A) plant trials (B) sea trials (C) dock trials (D) launched trials

23. Whichdevice is used in a diesel engine to inject a metered quantity of lubricating oil into the cylinder as the piston ring pack passes the injection points? (A) Lubricator (B) Camshaft (C) Crosshead (D) Piston rod

24. 無鍵式螺槳拆出時轂部膨脹界面所需油壓之壓力，一般約需高於當時溫度所需壓入壓力的多少%？ (A) 5 (B) 10 (C) 15 (D) 20

25. 艉軸承的鐵梨木艉軸管，在進塢拆檢艉軸時，對於艉軸承應注意的事項為何？ (A) 塗抹牛油保護 (B) 塗抹滑油潤滑 (C) 保持乾燥乾淨 (D) 灌水以防龜裂

26. 艉軸白合金軸承若發生下列那種狀況，則不可以採用重澆白合金的方法修理？ (A) 有龜裂現象 (B) 嚴重裂紋 (C) 過度磨損 (D) 嚴重燒熔

27. 船用真空蒸餾式淡水機裝置中，滷水（Brine water）多利用下列那種泵來排出？ (A) 離心泵 (B) 螺旋泵 (C) 抽射泵 (D) 往復泵

28. 冷凍壓縮機剛起動時，油壓開關因有何種裝置，才能在無油壓時壓縮機也不停止運轉？ (A) 差壓 (B) 延時 (C) 高壓 (D) 低壓

29. 蒸汽機船舶中，真空式造水機的加熱熱源，多為： (A) 透平機的高壓抽汽 (B) 透平機的中壓抽汽 (C) 透平機的低壓抽汽 (D) 鍋爐產生之排氣

30. 下列何者不是旋轉式冷凍壓縮機的優點？ (A) 起動容易 (B) 構造複雜 (C) 振動小 (D) 慣性小

31. 離心泵與往復泵相比，下列何者是離心泵主要的特點？ (A) 不能抽送含雜質的污水 (B) 自吸能力差 (C) 流量不均勻 (D) 管理維修較麻煩

32. 引導式洩壓閥如果主閥閥蓋墊圈漏油，將導致系統壓力： (A) 消失 (B) 調不低 (C) 調不高 (D) 波動

33. 對於油濾器選用要求，下列敘述何者錯誤？ (A) 濾心要有足夠的機械強度 (B) 通油能力要好 (C) 精度要求為最次要的考量條件 (D) 要有抗腐蝕性

34. 鍋爐停用時之滿水保養法，其水質之酸鹼值（pH 值）宜保持約： (A) 2－3 (B) 4－5 (C) 6－7 (D) 9－11

35. 對於舵機發生「單一損傷」之進一步規定中，在舵機控制系統失效時，駕駛台上可將第二套系統切入操控，並於多少秒內重獲操舵能力？ (A) 60 (B) 45 (C) 50 (D) 55

36. 依 SOLAS 救生艇推進之規定，在依周圍規定溫度下起動救生艇引擎，應在多少分鐘內起動？ (A) 1 (B) 2 (C) 3 (D) 5

37. Which section of the shafting system is used to secure the propeller? (A) Thrust shaft (B) Intermediate shaft (C) Stern tube shaft (D) Tail shaft

38. What is the additive of lubricant oil to improve the cleanliness of surfaces? (A) Oxidation inhibitor (B) Corrosion inhibitor (C) Detergent (D) Alkalineagent

39. Which event in those seawater systems is often prevented by continuously injecting chemical poisons? (A) Scale formation (B) Erosive damage (C) Corrosion damage (D) Marine growth

40. Which operation is taken periodically as a means of checking main bearing alignment for a diesel engine? (A) Crankshaft deflection measurement (B) Thrust bearing clearance measurement(C) Main bearing clearance measurement(D) Eccentricity measurement of main bearing

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