4. The oily water separator is running now.

5. What work did you do on your shift?

6. The No.1 generator needs an overhaul.

7. Would you give me the installation diagram?

8. Your certificate has expired.

9. Fill the expansion tank to the correct level.

10. How often do you test the emergency generator?

四、請將下列對話翻繹成中文(20%)Dialogue 1 Application for stopping the main engineB: Excuse me, sir. May I stop the main engine right now?A: What's the matter?B: A fire occurred in the scavenge air box. I have to stop the main engine.A: How long will it take?B: About one hour.A: Yes, I see. Put the fire out as quickly as possible.B: Thank you, sir.Dialogue 2 Taking over the freshwater generatorA: How much water can it produce a day?B: Its designed capacity is 29 tons, but it can't distill so much at present.A: What's the matter? How much can it produce?B: Only 20 tons. I think it's due to the scale and air leakage.Dialogue 3 Parallel operationA: Please show me where the main switchboard is.B: This way, please.A: First of all, please tell me the functions of meters and switches.B: All right.A: Could you show me the parallel operation?B: Regulate the voltage and frequency first. Then watch the synchroscope. While the pointer is running slowly clockwise, turn on the breaker when the pointer is at 11.A: All right.B: Anything else?A: No, thank you.

Q1: During the operation of a self-cleaning purifier, if the outgoing heavy phase contains a light phase,what are the possible causes?A: The possible causes:1. Liquid seal has broken or is close to breaking due to:(1)Filling too fast at start;(2) Too little seal liquid.2. Closed valve in light phase outlet.3. Gravity disc too large.4. Throughput too high.5. Seal ring under gravity disc missing or damaged.6. Changed separation temperature resulting in changed density ratio.7. For bowl with paring disc, back pressure too high.

Q2: What's the procedure for a boiler's normal shut-down?A: For a boiler normal shut-down the suitable procedure is:1. Carry out soot blowing, if permissible.2. Change combustion control from automatic to manual.3. Change fuel supply to diesel oil; shut steam off fuel heaters and trace heating.4. Close burner supply valves and main fuel shut off valve.5. Purge boiler furnaces with air for three to five minutes; stop forced draught fan.6. Close steam stop valves on boiler when pressure is reduced.7. Drain boiler when it has cooled down or filled with treated water.

1、說明靜壓與動壓式過給機性能及構造上有何優劣？

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