【判断题】
在变配电站停电检修或安装时 , （值班员）负责完成安全技术措施与安全组织措施。
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相关试题
【判断题】
脚扣是登杆用的专用工具，其主要部分用（钢材）材料制成。
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供电系统供电频率的允许偏差对电力网容量在 300 万 kW以下者绝对值不大于（ 0.5 ）Hz。
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可移动手车式高压开关柜断路器与手车之间有机械联锁装置 , 只有断路器在（分闸）位置时才能移动手车。
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变压器保护中，属于后备保护的是（过电流）保护。
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电气工程的安全用具分为两大类：即绝缘安全用具和（一般防护）安全用具、611、摇表进行开路试验时， 指针应指在（∞）位置为良好。
【判断题】
（隔离开关）的主要作用是用于隔离电源。
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人遭到电击时，由于人体触电的部位不同，其电流经过人体的路径也不同，其中电流流过（心脏）危害最大。
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变压器防爆管的作用是（防止油箱破裂）。
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电力系统在运行中常会发生故障，最常见的故障是（各种类型的短路）。
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电力电缆敷设到位后 , 首次绑扎可采用铁丝等材料将电缆定型 , 在进行二次整理时将绑扎材料更换为（过塑铁丝） , 并定尺绑扎。
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某断路器用 ZN表示， Z 表示（真空）断路器。
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由于手持式电工工具在使用时是移动的 , 其电源线易受到拖拉、磨损而碰壳或脱落导致设备金属外壳带电 ,导致（触电事故）。
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配电变压器的高压侧一般都选择（避雷器）作为防雷用保护装置。
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第二种工作票的有效期最长为（ 1 天）。
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电压互感器的额定二次电压一般为（ 100） V。
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电缆的型号为 ZQ22-3x70-10-300 中的 10 表示该电缆的（工作电压）。
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架空导线型号 TJ-50 的含义是（标称截面积 50 的铜绞线）。
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氧化锌避雷器的阀片电阻具有非线性特性 , 在（过）电压作用下 , 其阻值很小 , 相当于短路状态。
【判断题】
TT 系统中第二个 T 表示（保护接地）。
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三相四线式 380V 配电网属于（二次配网）。
【判断题】
跌开式高压熔断器在户外应安装在离地面垂直距离不小于（ 4.5 ） m。
【判断题】
Ⅱ类设备的防触电保护是采取（双重绝缘）措施。这种设备不采用保护接地的措施 , 也不依赖于安装条件。
【判断题】
配电变压器原、副绕组匝数不同 , 一般其副绕组的匝数要比原绕组的匝数（少）。
【判断题】
一式二份的工作票 , 一份由工作负责人收执 , 作为进行工作的依据 , 一份由（运行值班员）收执 , 按值移交。
【判断题】
紧急事故处理时可不需填写（倒闸操作票），但应事后将有关事项记入值班日志 , 并及时汇报。
【判断题】
手动操作断路器跳闸时，自动重合闸继电保护处于（不动作）状态。
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值班人员手动合闸于故障线路，继电保护动作将断路器跳开 , 自动重合闸将（不动作）。
【判断题】
线路限时电流速断保护装置动作，可能是（始端）部分发生短路故障。
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电缆线路中有中间接头时，压接接头最高允许温度为（ 150）℃。
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在（中性点不接地）系统中，变压器中性点一般不装设防雷保护。
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TT 系统中第二个 T 表示（保护接地）。
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箱式变电站所在接地应共用一组接地装置，接地网的接地引线应不少（ 2）条。
【判断题】
当人体发生触电时 , 通过人体电流越大就越危险 , 通常将（摆脱）电流作为发生触电事故的危险电流界限。
【判断题】
用于电压互感器高压侧的高压熔断器其额定熔断电流一般为（ 0.5 ） A 。
【判断题】
因故需暂时中断作业时、所装设的临时接地线（保留不动）。
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使导线的稳定温度达到电缆最高允许温度的载流量，成为允许载流量。
【判断题】
二次线路中，时间继电器的文字符号表示为（ KT）。
【判断题】
电气设备检修时，工作票的有效期限以（批准的检修期限）限。
【判断题】
供电系统中三相电压对称度一般不应超额定电压的（ 5） %。
【判断题】
测量电容器绝缘电阻（前后）应注意放电，以防作业人员触电。
推荐试题
【单选题】
Are you feeling better today, Jack?___
A. There must be something wrong.
B. Just have a good rest.
C. Yes, thank you, doctor. But I still don't feel good.
D. Don’t worry about me.
【单选题】
Thank you so much for your lovely gift.___
A. Never mind.
B. I'm glad you like it.
C. Please don't say so.
D. No, It's not so good.
【单选题】
Would you like something to drink? What about a cup of tea?___
A. No, thanks.
B. No, I wouldn’t
C. Yes, I want.
D. Yes, I like.
【单选题】
What's the problem with your bike?___
A. Not at all.
B. Good, thank you.
C. Nothing serious.
D. Sure.
【单选题】
Good morning, John. How are you doing?___
A. I'm pleased
B. Good night.
C. Not so bad. And you?
D. How do you do?
【单选题】
How do you do?___
A. Fine, thank you.
B. How do you do?
C. Not too bad.
D. Very well.
【单选题】
Good-bye for now.___
A. The same to you.
B. That's OK
C. See you.
D. Long time no see.
【单选题】
Hello, how are you?___
A. Hello, how are you?
B. How do you do?
C. Fine, thank you.
D. That's OK.
【单选题】
I didn't mean to do that. Please forgive me。___
A. Not too bad.
B. That's all right
C. It's a pleasure.
D. Thank you.
【单选题】
Thank you for your invitation.___
A. It doesn’t matter.
B. It's a pleasure.
C. It's a small thing.
D. I'll appreciate it.
【单选题】
What a beautiful dress you have on today!___
A. It is suitable for me.
B. No, it isn’t.
C. You want to have one, too?
D. Thank you.
【单选题】
I think he is a good lecturer.___
A. Sorry, it doesn’t matter.
B. So do I.
C. Yes. It's a good idea
D. I don't mind
【单选题】
— What's the matter, dear?___
A. I didn't go to school.
B. I have a terrible headache.
C. I took the kids shopping today.
D. It is a beautiful dress.
【单选题】
Good morning, may I speak to Mark, please?___
A. Who's there?
B. Who's that speaking?
C. Who are you?
D. Who wants to speak to Mark?
【单选题】
Let me introduce myself. I'm Steward.___
A. What a pleasure.
B. Pleased to meet you.
C. I don't know.
D. Thanks a lot.
【单选题】
Let's go to the library this afternoon.___.
A. Yes, that's right.
B. No. I can't.
C. What about you?
D. That's a good idea.
【单选题】
What does Tom's wife do for a living?___.
A. She is a doctor.
B. Tom loves his wife.
C. She has a happy life.
D. She lives far from here.
【单选题】
How tall is your sister?___
A. She is not very well.
B. She is 28 years old.
C. She is very nice.
D. She is as tall as I am.
【单选题】
What do you think of this novel?___
A. I've read it.
B. It's well-written.
C. It was written by my uncle.
D. I bought it yesterday.
【单选题】
How much is this necklace?___
A. It's very nice.
B. It's a birthday present from my parents.
C. It costs fifty pounds.
D. It's a bargain.
【单选题】
How can I get to the cinema?___
A. It's very far.
B. Yes, there is a cinema near here.
C. It's well known.
D. Go down this street and turn left.
【单选题】
What's the matter, John?___
A. I failed my French test
B. It doesn't matter.
C. Nothing's wrong with him.
D. I don't think I can.
【单选题】
What are you majoring in?___
A. In a university.
B. Very hard.
C. Mathematics.
D. At nine in the morning.
【单选题】
Are you going on holiday for a long time?___
A. It was a long time.
B. Two weeks ago.
C. No. Only a couple of days.
D. Not long time ago.
【单选题】
Is Mary there?___
A. Speaking.
B. I'm not Mary.
C. Who are you?
D. Mary is well today.
【单选题】
What day is today?___
A. It's March 6.
B. It's a fine day today.
C. It's March.
D. It's Monday.
【单选题】
Is that seat taken?___
A. Please don't worry.
B. I don't think so.
C. Why not?
D. It's very nice.
【单选题】
Thank you for calling.___
A. Don’t mention it.
B. That's fine.
C. Nice talking to you.
D. Call back again.
【单选题】
How are you getting on today?___
A. Very well.
B. How do you do?
C. I'm a doctor.
D. Nice to have known you.
【单选题】
How's your family?___
A. Thanks all the same.
B. Thanks for calling.
C. Not too bad.
D. Don't mention it.
【单选题】
- How is it that you are late for class again?___
A. Because I missed the bus
B. By bus and then on foot
C. Yes, it is quite wrong
D. It is far from school
【单选题】
- Excuse me. Could you spare me a few minutes? - ___
A. Of course.
B. Of course not.
C. I am sorry to hear that.D.Yes. I'm busy now.
【单选题】
- It's very thoughtful of you to give me a ride. ___
A. It's my pleasure.
B. Take it easy.
C. Sure.
D. Never mind.
【单选题】
- This is heavy! What's in it? ___
A. I think you don't like it.
B. My new computer. I just bought it.
C. I'm glad you're here.
D. Are you really interested in it?
【单选题】
___ I'd like to place an order please.
A. Can I help you?
B. I can help you.
C. What are you doing?
D. Why are you doing?
【单选题】
- Do you know the girl over there?___
A. How can I know?
B. Yes, I remember it now.
C. It's Sam, my teacher's daughter.
D. She is a good girl.
【单选题】
- Shall we go out for dinner tonight?____
A. No, you can't.
B. Yes, please.
C. Thank you, I don't want to.
D. Sorry, I have a report to finish.
【单选题】
- I think the reference book（参考书）is very helpful.____
A. Good idea.
B. So do I.
C. With pleasure.
D. No problem.
【单选题】
- I wish you success in your career.____
A. You are welcome.
B. I think so.
C. Yes, please.
D. The same to you.
【单选题】
- Would you like to come over tonight?____
A. Yes, last night.
B. Yes, over there.
C. Sure, I'd love to.
D. Yeah, I liked it too.
