高级电工维修电工试题.doc

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1、is one of the practical form of values. The so-called values refers to the objective things are of no value and the value of fundamental perspective. Different values, peoples behaviour, attitudes, ways are different. People-oriented focus on human value and reality, we need the broadest masses as v

2、alues. Adhere to people-oriented values, is to make the economy more development, improve democracy, cultural prosperity, and live a happier; is deeply concerned that human development and human values, development of social and human development of rational unified, insisted in the material civiliz

3、ation, political civilization and spiritual civilization in the overall advancement of Socialist civilization to a higher level. Also want to see that persons value is not only meet your needs, also is to meet the needs of others and the community. Adhere to people-oriented, to strongly advocate eve

4、ry community member, serve others, beneficial to the community of people. The so-called Outlook, attitude is on the record, including who, how to create a record of achievements, how to evaluate performance, and so on. What values, what kind of Outlook. Adhere to people-oriented Outlook, is on the p

5、remise of respecting the interests and power of people, creating a popular, warm hearts, steady heart performance, creating “serve for one officer, the benefit of“ achievements, and overall construction of well-off society and promoting the all-round development of peoples performance. Achievement e

6、valuation in both economic accomplishments, take another look at the effectiveness of social progress; changes in both urban and rural change; both hard environment to strengthen and take another look at the soft environment improvement momentum of development at present, depending on the potential

7、for sustainable development. Leave people to talk about “values“ are worthless and leave people to talk about “Outlook“ is not what the performance. 4. people responded to the starting point of the question, and replied to questions point. Man is the sum of social relationships. We cannot leave the

8、chichuanyongdu, housing, tourism and entertainment, entertaining, and even certain political, economic, cultural and social environment, and so on. Due to human needs, all walks of life will come into being. People create for their survival, and continue enjoying the results of the construction. Col

9、orful in the transformation of the people of the world, community vitality in the creation of man. Therefore, any work we do, the starting point is human, what are people. Us speed up development, the core of which is to meet the needs of people, including survival needs, emotional needs and self-ac

10、tualization needs. It should be noted that people are not machines, not the slave of an object, not to be controlled. People have their own personality, has its own personality, has its own dignity. Person in need of care, you need to understand, need to meet. It is said that in the “agricultural so

11、ciety, people plant“; in “industrial society, man is an animal“; “the information society, returnNow, we are in a new historical stage of all-round construction of a well-off society. In perform duties, and carried out work of process in the, we to put people as a guide principles, and a test standa

12、rd, efforts from masses most hope do of things do up, from masses most care of hot problem grabbed, from masses most not satisfaction of place modified up, not make nominal of formalism, not do grandstanding of cosmetic, to seeking of style, help masses share, is people benefit. (C) the investee peo

13、ple is not only an idea, it is a job requirement. Philosophy through to the people-oriented thought in the work of the Office, must be clear work objectives. Party Office in the city this year remains: Advanced civil strife, local brand. The County (City) Party Committee offices and units directly u

14、nder the Office to hold high the banner of first to excellence, people-oriented requirements, strengthen the construction and management of the Office towards the work “a higher level“. Investee 1. political participation based on conspiracy to adhere to people-oriented, will be around to promote co

15、ordinationDevelopment events, great searchings. The 16 session of the partys scientific Outlook on development, is the new Central collective leadership to the development of connotation, development essentials, further deepen the essence of development and innovation, is our partys ruling idea a le

16、ap. At present, establishing and implementing the scientific concept of development has become the partys important work. As the Office of party Committee, working party should service center, initiative to claim leadership of the decision, the current focus is to focus on promoting comprehensive, c

17、oordinated and sustainable development with more suggestions, do more research, summarized the typical. One is drafted to raise the level of your presentation. Your presentation is the main Office of “products“, is the basic carrier staff service, is important to measure service levels. The quality

18、of your presentation, mainly depends on how much we drafted a document recognized by the leadership, how many are listening to the people in favour of the report, how many paid dividends in the practical work. Improve presentation drafting level, requirements we accurate grasp led intent, General le

19、d care of work are to as understand, General led consider of problem are to in-depth thinking; requirements we highlight place features, put superior approach policy and local actual combined up, put presentation of theme thrust and masses of by thought by wants to combined up; requirements we seeks

20、 to streamlined clear, with simple of language expression deep of thought, with short of length hosted rich of connotation. Second, the survey results more. Investigation of the base, the road to success is something, is our for the Party Committees policy decision a good idea, an important part of

21、a good staff. This year, to focus around industrial XING city, and farmers increase, and and manpower development, and seeking, major problem and foster advantage industry, and adjustment agricultural structure, and carried高级维修电工试题一、选择题:1. 下列多级放大电路中,低频特性较好的是:( A ) A直接耦合 B. 阻容耦合 C. 变压器耦合 D. A 和 B2. 逻

22、辑表达式 AAB 等于(A )A. A B. 1A C. 1B D.B3. 微机中,存贮器与磁盘之间的数据传送采用( C )方式。 A查询方式 B. 中断 C. DMA D.三者全有4. 在三相半波可控整流电路中,当负载为电感性时,负载电感量越大,则 (D )A. 输出电压越高 B.输出电压越低 C.导通角越小 D. 导通角越大5. 把( C )的装置称为逆变器。A. 交流电变换为直流电 B. 交流电压升高或降低C. 直流电变换为交流电 D. 直流电压升高或降低6. 在自动控制系统中,若想稳定某个物理量,就该引入该物理量的( B )A.正反馈 B.负反馈 C. 微分负反馈 D. 微分正反馈7.

23、 带有速度、电流双闭环调速系统,在启动时,调节作用主要靠( A )产生。A. 电流调节器 B. 速度调节器 C. 电流、速度调节器 D. 比例、积分调节器8. 带有速度、电流双闭环调速系统,在系统过载或堵转时,速度调节器处于( A ) 。A. 饱和状态 B. 调节状态 C. 截止状态 D. 放大状态9. 不属于分布式网络的是( C )A网型网络 B. 总线型网 C. 环型网 D. 三者都不是10.关于 PLC,下列观点哪个正确?( D) A. PLC 与变频器都可进行故障自诊断。B. PLC 的输入电路采用光电耦合方式。C. PLC 的直流开关量输出模块又称为晶体管开关量输出模块,属无触点输出

24、模块。D. 以上全正确。11. 以下 ( B ) 不是计算机网络的基本组成。 A主机 B. 集中器 C. 通信子网 D. 通信协议12. 组合逻辑门电路在任意时刻的输出状态只取决于该时刻的( C ) 。A. 电压高低 B. 电流大小 C. 输入状态 D. 电路状态13. 在三相半波可控整流电路中,每只晶闸管的最大导通角为(D)A. 30 B. 60 C. 90 D. 12014. 在三相半波可控整流电路中,每只晶闸管承受的最高正反向电压为变压器二次相电压的 。 ( C )A. 倍 B. 倍 C. 倍 D. 2 倍15. 电压负反馈主要补偿 上电压的损耗。 ( B )A. 电抗器电阻 B. 电源

25、内阻 C. 电枢电阻 D. 以上皆不正确16. 带有速度、电流双闭环调速系统,在负载变化时出现偏差,消除偏差主要靠 。 ( B ) 。A. 电流调节器 B. 速度调节器 C. 电流、速度两个调节器 D. 比例、积分调节器17. 带有速度、电流双闭环调速系统,在系统过载或堵转时,速度调节器处于 。 ( A)is one of the practical form of values. The so-called values refers to the objective things are of no value and the value of fundamental perspectiv

26、e. Different values, peoples behaviour, attitudes, ways are different. People-oriented focus on human value and reality, we need the broadest masses as values. Adhere to people-oriented values, is to make the economy more development, improve democracy, cultural prosperity, and live a happier; is de

27、eply concerned that human development and human values, development of social and human development of rational unified, insisted in the material civilization, political civilization and spiritual civilization in the overall advancement of Socialist civilization to a higher level. Also want to see t

28、hat persons value is not only meet your needs, also is to meet the needs of others and the community. Adhere to people-oriented, to strongly advocate every community member, serve others, beneficial to the community of people. The so-called Outlook, attitude is on the record, including who, how to c

29、reate a record of achievements, how to evaluate performance, and so on. What values, what kind of Outlook. Adhere to people-oriented Outlook, is on the premise of respecting the interests and power of people, creating a popular, warm hearts, steady heart performance, creating “serve for one officer,

30、 the benefit of“ achievements, and overall construction of well-off society and promoting the all-round development of peoples performance. Achievement evaluation in both economic accomplishments, take another look at the effectiveness of social progress; changes in both urban and rural change; both

31、 hard environment to strengthen and take another look at the soft environment improvement momentum of development at present, depending on the potential for sustainable development. Leave people to talk about “values“ are worthless and leave people to talk about “Outlook“ is not what the performance

32、. 4. people responded to the starting point of the question, and replied to questions point. Man is the sum of social relationships. We cannot leave the chichuanyongdu, housing, tourism and entertainment, entertaining, and even certain political, economic, cultural and social environment, and so on.

33、 Due to human needs, all walks of life will come into being. People create for their survival, and continue enjoying the results of the construction. Colorful in the transformation of the people of the world, community vitality in the creation of man. Therefore, any work we do, the starting point is

34、 human, what are people. Us speed up development, the core of which is to meet the needs of people, including survival needs, emotional needs and self-actualization needs. It should be noted that people are not machines, not the slave of an object, not to be controlled. People have their own persona

35、lity, has its own personality, has its own dignity. Person in need of care, you need to understand, need to meet. It is said that in the “agricultural society, people plant“; in “industrial society, man is an animal“; “the information society, returnNow, we are in a new historical stage of all-round

36、 construction of a well-off society. In perform duties, and carried out work of process in the, we to put people as a guide principles, and a test standard, efforts from masses most hope do of things do up, from masses most care of hot problem grabbed, from masses most not satisfaction of place modi

37、fied up, not make nominal of formalism, not do grandstanding of cosmetic, to seeking of style, help masses share, is people benefit. (C) the investee people is not only an idea, it is a job requirement. Philosophy through to the people-oriented thought in the work of the Office, must be clear work o

38、bjectives. Party Office in the city this year remains: Advanced civil strife, local brand. The County (City) Party Committee offices and units directly under the Office to hold high the banner of first to excellence, people-oriented requirements, strengthen the construction and management of the Off

39、ice towards the work “a higher level“. Investee 1. political participation based on conspiracy to adhere to people-oriented, will be around to promote coordinationDevelopment events, great searchings. The 16 session of the partys scientific Outlook on development, is the new Central collective leade

40、rship to the development of connotation, development essentials, further deepen the essence of development and innovation, is our partys ruling idea a leap. At present, establishing and implementing the scientific concept of development has become the partys important work. As the Office of party Co

41、mmittee, working party should service center, initiative to claim leadership of the decision, the current focus is to focus on promoting comprehensive, coordinated and sustainable development with more suggestions, do more research, summarized the typical. One is drafted to raise the level of your p

42、resentation. Your presentation is the main Office of “products“, is the basic carrier staff service, is important to measure service levels. The quality of your presentation, mainly depends on how much we drafted a document recognized by the leadership, how many are listening to the people in favour

43、 of the report, how many paid dividends in the practical work. Improve presentation drafting level, requirements we accurate grasp led intent, General led care of work are to as understand, General led consider of problem are to in-depth thinking; requirements we highlight place features, put superi

44、or approach policy and local actual combined up, put presentation of theme thrust and masses of by thought by wants to combined up; requirements we seeks to streamlined clear, with simple of language expression deep of thought, with short of length hosted rich of connotation. Second, the survey resu

45、lts more. Investigation of the base, the road to success is something, is our for the Party Committees policy decision a good idea, an important part of a good staff. This year, to focus around industrial XING city, and farmers increase, and and manpower development, and seeking, major problem and f

46、oster advantage industry, and adjustment agricultural structure, and carriedA. 饱和状态 B. 调节状态 C. 截止状态 D. 放大状态18. 软件是网络系统软件中的最重要、最核心的部分。 ( A ) A网络协议 B. 操作系统 C. 网络管理 D.网络通信 19. RS-232-C 标准中规定逻辑 1 信号电平为 。 ( C) A015V B. +3+15V C.315V D. 50V20. 属于轮廓控制型数控机床。 ( C) A数控冲床 B. 数控钻床 C. 数控车床 D. 都不是21、 “CNC”的含义是( B

47、 ) 。A数字控制 B. 计算机数字控制 C.网络控制22、PLC 的工作方式是:AA串行工作方式 B.并行工作方式 C.其它工作方式 23、数控系统所规定的最小设定单位就是(C) 。A. 数控机床的运动精度 B. 机床的加工精度 C. 脉冲当量 D. 数控机床的传动精度24、计算机由输入设备、输出设备、存储器、运算器、_C_组成。A.硬盘 B.键盘 C.控制器 D.管理器25、计算机中最基本的存取单位是_B_ 。A.字 B.字节 C.位 D.地址26目前使用最广泛的网络拓朴结构是 _C_。A.环形拓朴 B.星形拓朴 C.总线拓朴 D.局域网络27、一个发光二极管显示器应显示“7” ,实际显示“1” ,故障线段应为( A )。A、a B、b C、d D、f28、将二进制数转换为十六进制数是(D )。A、2AH B、3AH C、2BH D、3BH29、PLC 交流电梯的 PLC 输出接口驱动负载是直流感性负载时,则该在负载两端( C )。A、串联一个二极管 B、串联阻容元件C、并联一个二极管 D、并联阻容元件30、PLC 可编程序控制器,整个工作过程分五个阶段,当 PLC 通电运行时,第四个阶段应为( B )。A、与编程器通讯 B、执行用户程序 C、读入现场信号 D、自诊断31、国内外 PLC 各生产厂家都把(A )作为第一用户编程语言。A、梯

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