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喷枪漏水有什么征兆?发现喷枪漏水应如何处理?

答案

参考答案:

喷枪漏水的征兆是火焰发蓝、发黄而异常。另外,还出现高压水压力突然下降,高压水流量突然加大等征兆。主控操作者要随时注意高压水的进出水流量等差值。

发现喷枪漏水,应迅速关闭高压水切断阀,并严禁动炉。炉内水量较大时严禁炉子周围有人,要防止烟罩上的钢渣等物掉入炉内,只有确认炉内水分已经全部蒸发完毕,方能缓慢动炉。此时转炉正前方人员必须躲开,防止喷溅出的钢、渣将人烫伤。

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How many days in a week?            

      Tom asks his friend Kate, " How many days are there in a week?"                  

      " Seven days of course," answers Kate, " They're Sunday, Monday, Tuesday, Wednesday, Thursday,

Friday and Saturday."  

      "Well, Kate, can you name five days of the week and not say Sunday, Monday, Tuesday, Wednesday,

Thursday, Friday and Saturday? "

      " No, I can't. Can you? " asks Kate.              

      " Yes, I can. They are today, tomorrow, the day after tomorrow, yesterday, the day before yesterday."

1. Is Kate Tom's sister?[ ]

A. Yes, she is. 

B. Yes, she's not. 

C. No, she isn't.

D. Sorry, I don't know.

2. How many days are there in a week?                     [ ]

A. Eleven days.                           

B. Six days.                

C. Seven days.                                  

D. Five days.

3. Can Kate say the five days of the week?[ ]

A. Yes, she can.                                                      

B. Yes ,she can't.                   

C. No, she can't.                                  

D. No, she can.

4. How many people are there in the passage?                     [ ]

A. There're seven people.                     

B. There're six people.                 

C. Only one.                                        

D. There're two.

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