相关试题
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WP12系列发动机采用BOSCH公司生产的电子控制单元,主要由控制模块及3根连接___组成。
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JW-4G接触网作业车电气系统主要包括___控制系统和交流系统。
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JW-4G型接触网作业车车架后端设有电动工具接口,作为现场作业机具设备的___。
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车辆运行总里程为___、后端车速里程表、前、后端微机控制显示器显示的里程之和。
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车速里程表的功能是显示手动换挡工况时的车辆___、运行里程。
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行车工作必须坚持___、统一指挥、逐级负责的原则。
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电气控制柜内安装有换挡控制器、___等控制元件,是整个车辆的电气控制重要元件。
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换档控制器是微机控制系统的硬件执行元件,能实现作业车调速、换向保护、___、超速保护等功能。
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接触网多功能检修作业车大修周期为200000km或___年。
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启动电机是___电动机,以蓄电池为电源。
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启动电机主要由___,啮合机构和啮合传动机构三部分组成。
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车钩具有闭锁、开锁和___三个工作状态。
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常见的救援复轨方法有吊复法、拉复法、___。
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安全阀装于风包的上端,为空气制动系统的___ 。
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减压阀的功用是将总风包经列车管的0.69MPa高压气体,经减压阀降为0.49MPa,避免由于___,使闸瓦抱死轮对造成滑行而擦伤车轮。
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截断塞门由塞门体、塞门心、手把和___等组成。
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车轮踏面擦伤深度及局部凹下≦___mm。
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摘钩时应执行“一关前,二关后,三___,四提钩”的措施。
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接触网作业车司机在出乘前应检查车辆___路等密封装置有无渗漏。
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当发电机向蓄电池充电时,形成的磁场使电流方向相反,指针向“___”偏转,表示充电。
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当机车信号机点一个红色灯光时表示列车已越过地面显示___灯光的信号机。
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接触网作业车紧急停车信号的鸣示方式为___。
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四显示自动闭塞区段的进站信号机前方第一通过信号机的机柱上应涂___黑斜线。
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关机后再开机,间隔时间必须大于___,以保证设备正常工作。
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区间作业模式分为五种状态:【区间作业进入】【区间作业返回】【区间作业防碰】【区间作业编组】___。
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非正常行车模式:具有地面信号确认﹑路票行车、绿色许可证行车﹑___四种控车状态,用于作业车在特殊情况时的控制。
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GYK具有防接触网作业车___、警醒报警、轴温报警、风压报警功能。
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若轨道车要越过防碰起点或终点作业,司机应控制轨道车在防碰起点或终点前___内停车后,按压【解锁】键人工解除曲线闭口控制,按区间作业防碰___控制运行。
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当起步风压不足___时,发出风压报警语音提示,可按压【警惕】键解除报警。
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当红黄灯掉码报警时,可按压___键解除报警。
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进站信号机前接收到红黄灯,禁止___,按压【解锁】键提示“输入无效”。
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发动机转速表的功能是显示手动换挡工况时的发动机工作转速、___。
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64、待发动机工作一定时间后,操纵手油门控制手柄提高发动机转速至___r/min,提升空气压缩机的打风速度,观察总风缸风压逐渐上升到___后,进行制动机性能试验。
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65、轨道车运行控制设备GYK和车载无线通信设备等的电源,均应取自车上___控制电源系统.
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66、JW-4G型接触网作业车转向架横梁上安装有两个液压减震器,用以抑制车辆在直线上运行的 ___震动和 ___运动
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67、启动电机主要由___,啮合机构和啮合传动机构三部分组成。
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68、JW-4G型接触网作业车的 ___ 是传递和放大制动缸的制动力,并使闸瓦或闸片压紧车轮或制动盘,对车辆进行制动。
推荐试题
【单选题】
Tom is a book lover. ______ likes reading very much.
A. He B. She C. You D. It
【单选题】
—May I listen to the music here, Mr. White?
—Sorry, you’d better it like that.
A. not to do B. not do to
C. dont do D. not do
【单选题】
3.—Did you have a good time at Lauras birthday party?
— Yes, indeed. Its several years ________ I enjoyed myself so much.
A. when B. before C. since D. that
【单选题】
4. —___________ is the Summer Palace from here?
About three kilometers away. You can take the No. 35 bus.
A. How long B. How far C. How often D. How much
【单选题】
5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable.
A. anything B. something C. nothing D. everything
【单选题】
6. A friend of my ____ and I are going to visit_______ next week.
A. father; Browns B. father's; Browns
C. father; the Browns D. father's; the Browns
【单选题】
7. She ______ very hard since she came to our school.
A. studies B. has studied C. is studying D. studied
【单选题】
8. — Who will send you to the new school, your mom or your dad?
— _______. Ill go there by myself.
A. Both B. Either C. Neither D. None
【单选题】
9.—Well do what we can ____English well this term.
—It’s high time for you to work hard.
A. study B.to study C. be studied D. be studying
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______?
— Sorry, I don’t know. I’m new here.
A. where it is B. where was it C. where is it D. where it was
【单选题】
11. How do you like the dishes, Eric?
— Fantastic! Nothing tastes ________.
A. nice B. better C. terrible D. worse
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
【单选题】
13.You can save money _______ you buy cheaper things.
A. before B. unless C. if D. until
【单选题】
14. We will have a _________ holiday after the exam.
A. two-month B. two month’s C. two month D. two-months
【单选题】
15. —We will build an underground in Xuzhou before 2015.
— Wow, _______! Will it pass our place?
A. what an excited news B. how excited the news is
C. what exciting news D. how exciting
【单选题】
16. — Emily, here’s a dictionary.I hope it will help you in some way.
— Thank you.It’s ________ what I need.
A. almost B. still C. only D. just
【单选题】
17. —Oh.I’m hungry.Mum, can I have the hamburger on the plate?
—No.It tastes .
A. terribly B. terrible C. good D. well
【单选题】
18. —We can invite our teachers to the farewell party next Saturday.
—Yes, ______? I’ll call them at once.
A. what for B. what C. why not D. why
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years.
A. hardly; alone B. hard; alone
C. hardly; lonely D. hardly; lonely
【单选题】
20.—I’m going back to see my grandparents this weekend.
—________.
A. It’s very nice of you B. You’d better hurry
C. Say goodbye to them D. Give my best wishes to them
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful.
—What _______ good advice it is!
A. an; a B. a; a C. an; \ D. \; a
【单选题】
22. —Do you know the boy________ is sitting next to Peter?
— Yes. He is Peter’s friend. They are celebrating his ________ birthday.
A. who; ninth B. that; ninth C. /; ninth D. which; ninth
【单选题】
23. It was dark, ______ I couldnt see what was happening.
A. or B. though C. but D. so
【单选题】
24.—You can use MSN to talk with Vivien on the Internet.
—I know. But can you tell me ________?
A. what I can use it B. when I can use it
C. why can I use it D. how can I use it
【单选题】
25. _______ are you going to the School Uniform Exhibition, Amy ?
To learn about different styles of school uniform.
A. What B. Where C. Which D. Why
【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
A.England. B.France. C.America. D.China.
【单选题】
( ) 27. What does the prince do after the fox tells him a secret?
A.He cares more about a flower and a sheep.
B.He meets many more strange adults on other planets.
C.He realizes his love for the rose and he goes back to his planet.
D.He discovers interesting things such as a snake, other roses and a fox
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________.
A.the adult world B.the planet B -612
C.a rose and a fox D.the adventure of a young prince
【单选题】
( ) 29. What is the writer's main purpose(目的)in writing this passage?
A.To tell the readers his life story.
B.To tell people what kind of person his father was.
C.To tell the readers what present he got from his father.
D. To let people know how poor he was.
【单选题】
( ) 30. Why did the father not ask his son not to do this and do that?
A.Because he felt quite confident of his son.
B.Because he was born from a poor family.
C.Because he was a man of few words.
D.Because he didn't want to be much too strict with his son.
【单选题】
( ) 31. What would someone learn from this passage?
A.How to live by oneself. B.How to stand on one's own feet.
C.What a good father should do. D.What the self-important is like.
【单选题】
( ) 32. What may be the proper Chinese for the underlined part in the passage?
A.闲暇时光 B.学费 C.精神空虚 D.经济不足
【单选题】
( ) 33. Why did Natalie Smith pay for the six cars behind her?
A. She had seven tickets.
B. She hoped to please others.
C. She knew the car drivers well.
D. She wanted to show kindness.
【单选题】
( ) 34. Judy Foreman copied down the phrase because she ___ .
A. thought it was beautifully written
B. wanted to know what it really meant
C. decided to write it on a warehouse wall
D. wanted her husband to put it up in the classroom
【单选题】
( ) 35. Who came up with the phrase according to the passage?
A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
【单选题】
( ) 36. What can we infer from the last paragraph?
A. People should practice random kindness to those in need.
B. People who receive kindness are likely to offer it to others.
C. People should practice random kindness to strangers they meet.
D. People who receive kindness are likely to pay it back to the giver.
【单选题】
( ) 37.The greatest river for navigation is ___________.
A. the Nile B. the Amazon C. the Mekong D. the Mississippi
【单选题】
( ) 38. From a dam, people can use the water for ___________.
A. keeping the rivers clean B. only making electricity
C. irrigation and making electricity D. washing clothes
【单选题】
( ) 39. The water in the river is polluted because of _____________.
A. people's drinking water too much B. people's swimming in the river too much
C. chemicals and other materials D. people's building a dam across a river
【单选题】
( ) 40. The best title of the passage is ___________.
A. Rivers in Cities B. The importance of Rivers
C. Transportation D. Natural Resources