9. Record any malfunction during the tour of inspection. Ask the bridge for permission before stopping the main generator in case of accident.

10. All electrical switchboard panels shall be closed. Maintenance work shall be temporarily ceased.

四、請將下列對話翻譯成中文(20%)Dialogue 1 Taking over auxiliary enginesA: What's your auxiliary engine type?B: They are SKL8NVD.A: How about their work?B: On the whole, they run quite well.A: When did they have their last special survey?B: Last year in Hamburg.A: What brand of lube oil do you use for them?B: We generally use the Shell.A: What's the state of three generators?B: NO.1generator has run for a long time, and NO.2 just had a repair.A: Will you show me how to start the engine?B: I'd like to. Turn the engine on first and then.Dialogue 1 Warming up the main engineA: Has the removed piston been reassembled?B: Yes, it hasA: Has the main engine been warmed up?B: No, it hasn't.A: Begin to warm it up thenB: Ok. I'll warm it up with the A/E (Auxiliary Engine) cooling water.Dialogue 2 About auxiliary enginesA: How are all the auxiliary engines?B: The of No.1 is higher than normal. The lube oil in the sump is rather dirty. Its cylinders and pistons need an overhaul. We're going to sail at 1400 tomorrow. Please do it as quickly as possible.B: Yes, sir.

Q1: What are the main points for the maintenance of air compressor systems?A: The compressors are generally arranged for automatic operation with one machine running continually when maneuvering, automatically loading and unloading on demand, but with automatic stopping and staring at sea. When first starting, air and oil filters must be clean, pressure gauge valves cracked open.With manually controlled machines the drains must be opened before starting, coolers periodically drained during running periods, and drains opened for two to three minutes before the machine is stopped to purge moisture thoroughly form the unit before idle periods. Air reservoirs should be regularly drained of moisture.In control air systems the filter and drier must be kept functioning, and the drain valves fitted at the lowest points on air distribution lines regularly operated. Air lines must be kept free of oil or grease internally to avoid an explosion hazard. Safety valves provided on lines must be kept in working order.

Q2: How can you control the output of the WHR (Waste heat Recovery)systems?A: The output of WHR can be controlled:1. By controlling flow through an exhaust gas bypass duct by means of damper.2. By closing one or more of the isolating valves supplying circulating water to separate sections of the steam generator, when sub-divided inlet headers are provided. Valves must be fully opened or fully shut and not left in an intermediate position.3. By steam damping to the turbo-generator condenser.

一、試述船舶主機活塞環槽磨損的原因為何？

二、試述船舶柴油主機更換活塞環的原則為何？

三、試述柴油主機噴油閥進行噴霧試驗，其噴霧品質應符合哪些要求，其可檢查出噴油閥那些潛在的問題？

四、試述造成船舶柴油主機軸瓦出現裂紋甚至剝落主要原因為何？

五、如果發現船舶的冷凍裝置產生冰塞現象，你應如何處理以消除冰塞？

1. 酵母依外型可分為新鮮酵母、速溶酵母、乾酵母三類，若要製作相同份量成品，酵母使用量由多到少的排序為__________。(順序全對給分)(6 分)

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