问题 问答题 简答题

焦炭塔改油汽预热前需要做哪些工作?

答案

参考答案:

1.接到除焦班通知已除完焦,焦炭塔操作工应对塔底转油线进行吹扫;

2.装卸工装好头盖后,将新塔呼吸阀及放水阀关严并检查其它有关阀门是否关好。改蒸汽试压至规定值,恒压时间不得少于10分钟。检查头盖及短管是否泄漏;

3.试压完后泄压脱水,泄压后关严放空阀,脱水阀、冷焦阀。稍打开预热阀改少量油汽预热新塔,改通塔底至甩油罐的流程。

单项选择题
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King’s College Summer School
King’s College Summer School is an annual(每年的)training program for high school students at all levels who want to improve their English.Courses are given by the teachers of King’s College and other colleges in New York.Trips to museums and culture centers are also organized.This year’s summer school will be from July 25 to August 15.More information is as follows:
Application(申请)date
●Students in New York should send their applications before July 18,2007.
●Students of other cities should send their applications before July 16,2007.
●Foreign students should send their applications before July 10,2007.
Courses
●English LanguageSpoken English:22 hoursReading and Writing:10 hours
●American History:16 hours
●American Culture:16 hours
Steps
●A letter of self-introduction
●A letter of recommendation(推荐)
*The letters should be written in English with all the necessary information.
Cost
●Daily lessons:$200
●Sports and activities:$100
●Travels:$200
●Hotel service:$400
*You may choose to live with your friends or relatives in the same city.
Please write to: Thompson,Sanders1026 King’s StreetNew York,NY 10016,USAE-mail: KC-Summer-School@yahoo.com
小题1:You can most probably read the text in________.
A.a newspaperB.a travel guide
C.a textbookD.a telephone book
小题2:Which of the following is true about King’s College Summer School?
A.Only top students can take part in the program.
B.King’s College Summer School is run every other year.
C.Visits to museums and culture centers are part of the program.
D.Only the teachers of King’s College give courses.
小题3:If you are to live with your relatives in New York,you will have to pay the school ________.
A.$200B.$400
C.$500D.$900
小题4:What information can you get from the text?
A.The program will last two months.
B.You can write to Thompson only in English.
C.As a Chinese student,you can send your application on July 14,2007.
D.You can get in touch with the school by e-mail or by telephone.