问题 问答题 论述题

新安装或大修后的有载调压变压器在投入运行前,运行人员对有载调压装置应检查哪些项目?

答案

参考答案:

对有载调压装置检查的项目有:

(1)有载调压装置的油枕油位应正常,外部各密封处应无渗漏,控制箱防尘良好。

(2)检查有载调压机械传动装置,用手摇操作一个循环,位置指示及动作计数器应正确动作,极限位置的机械闭锁应可靠动作,手摇与电动控制的联锁也应正常。

(3)有载调压装置电动控制回路各接线端子应接触良好,保护电动机用的熔断器的额定电流与电机容量应相配合(一般为电机额定电流的2倍),在主控制室电动操作一个循环,行程指示灯、位置指示盘,动作计数器指示应正确无误,极限位置的电气闭锁应可靠;紧急停止按钮应好用。

阅读理解

When I was a foreign teacher in China,every day I taught English to my students and they taught me about China.One day the topic mined to saying “I love you”.I was shocked to learn that not one of my students had said this to their mothers,nor had their mothers said it to them.“Does your mom love you?” “Of course,”they answered.

“How do you know?” was my logical question.They responded that their moms cooked and Always told them what they were doing wrong to show their earning.I was strummed. So mom’s cooking and criticizing read our as “I love you”.”Then how do you say ‘I love you to her?” They agreed that getting good grades, followed by good jobs would be how they showed their love.

I come from a culture where most people are expressive enough,so I repeated these queries in clauses over time.Gradually,I began to get different responses.Some of them had exchanged those sentiments with their moms.

One of my favorite stories of change came from a girl.When she came home from university,her mother met her at the door and hugged(拥抱)her.This had never happened before,but her mom said,“Now that you have gone I have more time to myself.I noticed that in some places mothers and children hug each other and I decided it was a good idea and that I would begin hugging you.”

In my family we all say “I love you” a lot.While it is true that we often say the words without having great depth of feelings at that moment,it is almost like a blessing we give each other. Those three little words carry a world of meaning,even when said as a greeting, but most especially if they are the lax words we say to or hear from those we love.

小题1:The foreign teacher _________.

A.comes from America

B.is a young woman

C.is expressive enough

D.knows much about China小题2:Chinese people prefer to show love by __________.

A.saying “I love you”

B.cooking

C.getting good grades

D.doing something helpful小题3:In paragraph 4, what’s the real meaning of the mom’s hugging?

A.She is meeting her daughter at the dour.

B.She loves her daughter and misses her.

C.She is glad that she has more time to herself.

D.She finds it interesting to hug her daughter.小题4:What’s the main idea of the passage?

A.Say “I love you” more to your family.

B.Say “I love you” a lot to Chinese people.

C.Say “I love you” as a greeting to others.

D.Say “I love you” without great depth of feelings.

选择题