维电工高级技师复习资料及试题

1、谢谢观赏2010维电工高级技师复习资料_及试题Word_文档有答案1equipmentintheclassroomWithIntelcompanyonXXEducationCitydomainnetworkoftopiccasedesign,reliesonCiscocompanythoughtShuaidchuanprojectstafffreeprovideshasthreeyearstechnologysupport,from2009began,accordingtohighstandards,andhighofworkthought,andmanpowerplanning,andpoi

2、ntsstepimplementation,usingschoolearthquakeHoureconstructionofopportunities,againplanningelementaryandmiddleschoolscampusnetworkandeducationcitydomainnetwork,andlocalbroadcastingnetworkcompanycooperation,usingbroadcastTVnetwork,willphysicalfiberlayingtoeachschool,tominimumofcostachievedhasphysicalfi

3、berschoolschoolpass;Eachschoolconstructionstandardsofcampusnetworkandnetworkaccesstoallrooms;XXeducationmetropolitanareanetworkcentermachineroomequipmentintheMinistryofeducationstandardizationmanagementplatform,theCentralLibraryofaudio-visualeducationresources,setupaChineseteachereducationoudplatfor

4、m,implementedlinksthetwoplatforms.Atpresent,thecity'sprimaryandmiddleschoolstudentstocomputer3198,vitalitythan10:1;809equipmentclassesthroughtheclassroom(primaryandsecondary);36ofthecampusnetwork.Theestablishmentofanadvanced,practicalGigabiteducationalmetropolitanareanetwork,thecity'sschools

5、haveaccesstoeducationalmetropolitanareanetwork,schoolshavecomputernetworks,closed-circuittelevisionnetwork,broadcastnetworksintotheclassrooms,realizethetripleplay.SchoolsshareInternetbandwidth,canmeettheneedsofteachingoftheschoolofficeandatanytime.AccordingtoMinistryofeducationonfullstartedimplement

6、ationteachingpointsdigitaleducationresourcesfullcoverprojectofnotification(taughttechnicalletter(2012)74th,)andXXProvinceDepartmentofeducationonissuedXXprovinceteachingpointsdigitaleducationresourcesfullcoverprojectimplementationviewsofnotification(chuantaughtletter(2013)18th,)requirements,Icity6ate

7、achingpointsimplementationteachingpointsdigitaleducationresourcesfullcoverproject,combinedIcityspecificsituation,developedissuedhasXXCityBureauonteachingpointsdigitalresourcesfullcoverprojectofimplementationprogramme,EstablishedXX,fullcoverageofdigitalresourcesinmoderndistanceeducationteachingprojec

8、tleadinggroup,XX,chairedtheSecretaryforeducation.Established,digitalresourcesinmoderndistanceeducationteaching,XXfullcoverageprojectgroup,XX,DirectoroftheCenterforeducationalinformationandequipmentchairedZhuGuiyan,responsiblefordistanceeducationdigitalresourcescoveringprojectwork.ProjectsinXXcitysch

9、ooldigitalresourcesinmoderndistanceeducationteachingfull-coverageprojectleadinggroup,digitalresourcesinmoderndistanceeducationteaching,andXXfullcoverageprojectgroupleadershipandorganization,inaccordancewiththeunifiedarrangementofthewholeprovince,responsibleforuniversityeducationdigitalresourcescover

10、ingprojectmanagementandimplementation.Accordingtoprovincesarrangements,ICenterhasarrangementsGong一、单项选择选择一个正确的答案，将相应的字母填入题内的括号中。每题1分。)1. 一个完整的计算机系统包括。A、计算机及其外围设备B、主机、键盘及显示器C、软件系统和硬件系统D、模拟电路部分和数字电路部分2. 小型变压器的绕制时，对铁心绝缘及绕组间的绝缘，按对地电压的倍来选用。A、 1.5B、 2C、 3D、 43. 下列属于轮廓控制型数控机床是。A、数控车床B、数控钻床C、加工中心D、数控镗床4. 机械

11、工业中常用的润滑剂主要有大类。A、 2B、 3C、 4D、 55. 内燃机中的曲柄滑块机构，应该是以为主动件。A、滑块B、曲柄C、内燃机D、连杆6. 共发射极偏置电路中，在直流通路中计算静态工作点的方法称为。A、图解分析法B、图形分析法C、近似估算法D、正交分析法7. 直流差动放大电路可以。A、放大共模信号，抑制差模信号B、放大差模信号，抑制共模信号C、放大差模信号和共模信号D、抑制差模信号和共模信号8. 直流电动机转速不正常，可能的故障原因是：A、电刷位置不对B、启动电流太小C、电机绝缘老化D、引出线碰壳9. 计算机在电力传动的自动控制，一般分为。A、生产管理级和过程控制级B、单机控制和多机

12、控制C、直控级和监控级D、管理级和监控级10. 逆变器中的电力晶体管工作在状态。A、饱和B、截止C、放大D、开关11. 在转速负反馈系统中，闭环系统的转速降减为开环系统转速降的倍。A、 1+KB、 1+2KC、 1/(1+2K)D、 1/(1+K)12. 锥形轴与轮毂的键连接宜用联接。A、楔键B、平键C、半圆键D、花键13. 数码寄存器的功能主要是。A、产生CP脉冲B、寄存数码C、寄存数码和移位D、移位14. 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。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15. 一直导体放在磁场中，并与磁力线垂直，当

13、导体运动的方向与磁力线方向成夹角时导体中产生的电动势最大。A、90°B、 30°C、 45°D、 0°16. 晶闸管斩波器是应用于直流电源方面的调压装置，其输出电压(。A、是固定的B、可以上调，也可以下调C、只能上调D、只能下调17. 缩短辅助时间的措施有。A、缩短作业时间B、提高操作者技术水平mprove,securitypreventioncapacityobviouslyenhanced,securityhiddenandsecurityaccidentobviouslyreduced,effectiveguaranteesinformationh

14、ealthdevelopment.XXEducationCentreregularlycarryoutday-to-daynetworksecuritymonitoringinformationandequipment.Bytheappropriatetechnicalstaff,XXnetworkengineroommaintenancestaffonsitemanagementandmaintenanceonaregularbasis,scheduledviewingofnetworks,systems,databasesandassociatedequipmentoperatingcon

15、ditions,andmakearecord.Computerlabmaintenancemanagersregularlyrunavarietyofdevicesintheschoolinformationsystemparameters,serversystemsandvariousdatabackup,sothattherewasahardwarefailureinasystemcrashcanresumequicklyandefficiently.Computerlabmaintenancemanagersestablishanetworkantivirussystem,AviraVi

16、russystemonaregularbasis,andanti-virussoftwaresecurityassessment,timetoupgrade.Computerlabmaintenancemanagementforallequipmentintheroomaregulardust,replacetheoldlabel.Regularlyhostservers,networkswitches,corerouting,firewalls,hardwaremaintenance,suchasequipmentfailure,shouldbeprocessedinatimelymanne

17、rinordertoensuresafeandreliableoperationofthesystem.InXXcityinformationandequipmentwasestablishedwithintheCentre,educationalmetropolitanareanetworkcentermachineroomXX.ServersanddatastoresandapplicationstosetupinXXCitymetropolitanareanetworkcentermachineroom.WindowsServer2003,windowsServer2008,window

18、sServer2012,Linux,theoperatingsystem,thedatabaseforSQLServer2008,Officesoftware,suchasMicrosoftOfficesoftware.Schools(units)ofcomputer,informationsystemsecurityproductsfordomesticproducts,includingtheuseof360andkingsoftInternetsecuritysoftware.XXeducationmetropolitanareanetworkusedbytheserverforHP,f

19、irewallandinformationsecurityproductforHuaweiandCiscoproducts.Intheirdailywork,topublicizerelatedknowledgeandinformationsecurityconsiderations.Enhancedglobalawarenessofnetworkandinformationsecurity,andstrivetoachievenetworkeveryoneknowssecurityandvirusbeforetheguard,toimprovenetworkandinformationsec

20、urity,ensurethattheXXeducationsystemnetworkandinformationsystemsecurity.Trackingreportingsystemrequiresallpartiestostrengthencollaboration,workcloselywithemergencysafetyplandevelopedXXeducationmetropolitanareanetwork,regularlycarryoutemergencydrills,andcarriedoutspecialfundseveryyeartoprotectthesecu

21、rityofinformation.Annual2-3professionaltrainingfornetworkmanagersinthecity,formingtechnologywithastrongprofessionalandtechnicalteam,schoolnetworkmanagersoncommonnetworkfailuresandbecapableofsolvingsecurityissues.Issuesthatcannotberesolved,timelyformsofmeetings,suchasmeetings,analysis,equipmentinthec

22、lassroomWithIntelcompanyonXXEducationCitydomainnetworkoftopiccasedesign,reliesonCiscocompanythoughtShuaidchuanprojectstafffreeprovideshasthreeyearstechnologysupport,from2009began,accordingtohighstandards,andhighofworkthought,andmanpowerplanning,andpointsstepimplementation,usingschoolearthquakeHourec

23、onstructionofopportunities,againplanningelementaryandmiddleschoolscampusnetworkandeducationcitydomainnetwork,andlocalbroadcastingnetworkcompanycooperation,usingbroadcastTVnetwork,willphysicalfiberlayingtoeachschool,tominimumofcostachievedhasphysicalfiberschoolschoolpass;Eachschoolconstructionstandar

24、dsofcampusnetworkandnetworkaccesstoallrooms;XXeducationmetropolitanareanetworkcentermachineroomequipmentintheMinistryofeducationstandardizationmanagementplatform,theCentralLibraryofaudio-visualeducationresources,setupaChineseteachereducationoudplatform,implementedlinksthetwoplatforms.Atpresent,theci

25、ty'sprimaryandmiddleschoolstudentstocomputer3198,vitalitythan10:1;809equipmentclassesthroughtheclassroom(primaryandsecondary);36ofthecampusnetwork.Theestablishmentofandvanced,practicalGigabiteducationalmetropolitanareanetwork,thecity'sschoolshaveaccesstoeducationalmetropolitanareanetwork,sch

26、oolshavecomputernetworks,closed-circuittelevisionnetwork,broadcastnetworksintotheclassrooms,realizethetripleplay.SchoolsshareInternetbandwidth,canmeettheneedsofteachingoftheschoolofficeandatanytime.AccordingtoMinistryofeducationonfullstartedimplementationteachingpointsdigitaleducationresourcesfullco

27、verprojectofnotification(taughttechnicalletter(2012)74th,)andXXProvinceDepartmentofeducationonissuedXXprovinceteachingpointsdigitaleducationresourcesfullcoverprojectimplementationviewsofnotification(chuantaughtletter(2013)18th,)requirements,Icity6ateachingpointsimplementationteachingpointsdigitaledu

28、cationresourcesfullcoverproject,combinedIcityspecificsituation,developedissuedhasXXCityBureauonteachingpointsdigitalresourcesfullcoverprojectofimplementationprogramme,EstablishedXX,fullcoverageofdigitalresourcesinmoderndistanceeducationteachingprojectleadinggroup,XX,chairedtheSecretaryforeducation.E

29、stablished,digitalresourcesinmoderndistanceeducationteaching,XXfullcoverageprojectgroup,XX,DirectoroftheCenterforeducationalinformationandequipmentchairedZhuGuiyan,responsiblefordistanceeducationdigitalresourcescoveringprojectwork.ProjectsinXXcityschooldigitalresourcesinmoderndistanceeducationteachi

30、ngfull-coverageprojectleadinggroup,digitalresourcesinmoderndistanceeducationteaching,andXXfullcoverageprojectgroupleadershipandorganization,inaccordancewiththeunifiedarrangementofthewholeprovince,responsibleforuniversityeducationdigitalresourcescoveringprojectmanagementandimplementation.Accordingtop

31、rovincesarrangements,ICenterhasarrangementsGongC、减少休息时间D、减少准备时间18. 串励直流电动机的机械特性是。A、一条直线B、双曲线C、抛物线D、圆弧线19. 双闭环调速系统中，电流环的输入信号有两个，即信号和速度环的输出信号。A、主电路反馈电流B、主电路反馈转速C、主电路反馈的积分电压D、主电路反馈的微分电压20. 互感器是根据原理制造的。A、能量守恒B、能量变换C、电磁感应D阻抗变换21. 使用示波器时，要使圆光点居于屏幕正中，应调节旋钮。A“Y轴衰减”与“X轴位移”B“Y轴位移”与“X轴衰减”C“Y轴衰减”与“X轴衰减”D“Y轴位移”与

32、“X轴位移”22. 在电力电子装置中，电力晶体管一般工作在状态。A、放大B、截止C、饱和D开关23. 在我国，标准规定分度圆上的压力角为度。A10B20C30D4524. 世界上发明的第一台电子数字计算机是。A、ENIACB、EDVACC、 EDSACD、 UNIVAC25. 套筒联轴器属于联轴器。A、刚性固定式B、刚性可移式C、弹性固定式D、弹性可移式26. 如果一直线电流的方向由北向南，在它的上方放一个可N极偏向。A、西方B、东方C、南方D、北方27. 工时定额通常包括作业时间、时间、休息与生活需要的时间、以及加工准备和结束时间等。A、辅助B、布置工作地C、停工损失D、非生产性工作时所消耗

33、28. 通常所说的486、586微机，其中486、586的含义是。A、主存的大小B、芯片的规格C、硬盘的容量D、主频29. 在负载增加时，电流正反馈引起的转速补偿其实是转速上升，而非转速量应为。A、上升B、下降C、上升一段时间然后下降D、下降一段时间然后上升30. 当PLC交流电梯额定速度大于0.63m/s时，安全钳应选用式。A、渐进B、抛物线C、瞬时D、椭圆31. 使用JSS-4A型晶体三极管测试仪时，在电源开关未接通前，先将电压选择开关、电流选择开关放在量程上。A、所需B、最小C、最大D、任意32. 在直流电路中，基尔霍夫第二定律的正确表达式是。A、EIU=0B、EU=0C、EIR=0D、

34、EE=033. 用晶体管作为电子器件制作的计算机属于。A、第一代B、第二代C、第三代D、第四代34. 发电机的基本工作原理是：。mprove,securitypreventioncapacityobviouslyenhanced,securityhiddenandsecurityaccidentobviouslyreduced,effectiveguaranteesinformationhealthdevelopment.XXEducationCentreregularlycarryoutday-to-daynetworksecuritymonitoringinformationandequi

35、pment.Bytheappropriatetechnicalstaff,XXnetworkengineroommaintnancestaffonsitemanagementandmaintenanceonaregularbasis,scheduledviewingofnetworks,systems,databasesandassociatedequipmentoperatingconditions,andmakearecord.Computerlabmaintenancemanagersregularlyrunavarietyofdevicesintheschoolinformations

36、ystemparameters,serversystemsandvariousdatabackup,sothattherewasahardwarefailureinasystemcrashcanresumequicklyandefficiently.Computerlabmaintenancemanagersestablishanetworkantivirussystem,AviraVirussystemonaregularbasis,andanti-virussoftwaresecurityassessment,timetoupgrade.Computerlabmaintenancemana

37、gementforallequipmentintheroomaregulardust,replacetheoldlabel.Regularlyhostservers,networkswitches,corerouting,firewalls,hardwaremaintenance,suchasequipmentfailure,shouldbeprocessedinatimelymannerinordertoensuresafeandreliableoperationofthesystem.InXXcityinformationandequipmentwasestablishedwithinth

38、eCentre,educationalmetropolitanareanetworkcentermachineroomXX.ServersanddatastoresandapplicationstosetupinXXCitymetropolitanareanetworkcentermachineroom.WindowsServer2003,windowsServer2008,windowsServer2012,Linux,theoperatingsystem,thedatabaseforSQLServer2008,Officesoftware,suchasMicrosoftOfficesoft

39、ware.Schools(units)ofcomputer,informationsystemsecurityproductsfordomesticproducts,includingtheuseof360andkingsoftInternetsecuritysoftware.XXeducationmetropolitanareanetworkusedbytheserverforHP,firewallandinformationsecurityproductforHuaweiandCiscoproducts.Intheirdailywork,topublicizerelatedknowledg

40、eandinformationsecurityconsiderations.Enhancedglobalawarenessofnetworkandinformationsecurity,andstrivetoachievenetworkeveryoneknowssecurityandvirusbeforetheguard,toimprovenetworkandinformationsecurity,ensurethattheXXeducationsystemnetworkandinformationsystemsecurity.Trackingreportingsystemrequiresal

41、lpartiestostrengthencollaboration,workcloselywithemergencysafetyplandevelopedXXeducationmetropolitanareanetwork,regularlycarryoutemergencydrills,andcarriedoutspecialfundseveryyeartoprotectthesecurityofinformation.Annual2-3professionaltrainingfornetworkmanagersinthecity,formingtechnologywithastrongpr

42、ofessionalandtechnicalteam,schoolnetworkmanagersoncommonnetworkfailuresandbecapableofsolvingsecurityissues.Issuesthatcannotberesolved,timelyformsofmeetings,suchasmeetings,analysis,equipmentintheclassroomWithIntelcompanyonXXEducationCitydomainnetworkoftopiccasedesign,reliesonCiscocompanythoughtShuaid

43、chuanprojectstafffreeprovideshasthreeyearstechnologysupport,from2009began,accordingtohighstandards,andhighofworkthought,andmanpowerplanning,andpointsstepimplementation,usingschoolearthquakeHoureconstructionofopportunities,againplanningelementaryandmiddleschoolscampusnetworkandeducationcitydomainnetw

44、ork,andlocalbroadcastingnetworkcompanycooperation,usingbroadcastTVnetwork,willphysicalfiberlayingtoeachschool,tominimumofcostachievedhasphysicalfiberschoolschoolpass;Eachschoolconstructionstandardsofcampusnetworkandnetworkaccesstoallrooms;XXeducationmetropolitanareanetworkcentermachineroomequipmenti

45、ntheMinistryofeducationstandardizationmanagementplatform,theCentralLibraryofaudio-visualeducationresources,setupaChineseteachereducationoudplatform,implementedlinksthetwoplatforms.Atpresent,thecity'sprimaryandmiddleschoolstudentstocomputer3198,vitalitythan10:1;809equipmentclassesthroughtheclassr

46、oom(primaryandsecondary);36ofthecampusnetwork.Theestablishmentofanadvanced,practicalGigabiteducationalmetropolitanareanetwork,thecity'sschoolshaveaccesstoeducationalmetropolitanareanetwork,schoolshavecomputernetworks,closed-circuittelevisionnetwork,broadcastnetworksintotheclassrooms,realizethetr

47、ipleplay.SchoolsshareInternetbandwidth,canmeettheneedsofteachingoftheschoolofficeandatanytime.AccordingtoMinistryofeducationonfullstartedimplementationteachingpointsdigitaleducationresourcesfullcoverprojectofnotification(taughttechnicalletter(2012)74th,)andXXProvinceDepartmentofeducationonissuedXXpr

48、ovinceteachingpointsdigitaleducationresourcesfullcoverprojectimplementationviewsofnotification(chuantaughtletter(2013)18th,)requirements,Icity6ateachingpointsimplementationteachingpointsdigitaleducationresourcesfullcoverproject,combinedIcityspecificsituation,developedissuedhasXXCityBureauonteachingp

49、ointsdigitalresourcesfullcoverprojectofimplementationprogramme,EstablishedXX,fullcoverageofdigitalresourcesinmoderndistanceeducationteachingprojectleadinggroup,XX,chairedtheSecretaryforeducation.Established,digitalresourcesinmoderndistanceeducationteaching,XXfullcoverageprojectgroup,XX,Directorofthe

50、CenterforeducationalinformationandequipmentchairedZhuGuiyan,responsiblefordistanceeducationdigitalresourcescoveringprojectwork.ProjectsinXXcityschooldigitalresourcesinmoderndistanceeducationteachingfull-coverageprojectleadinggroup,digitalresourcesinmoderndistanceeducationteaching,andXXfullcoveragepr

51、ojectgroupleadershipandorganization,inaccordancewiththeunifiedarrangementofthewholeprovince,responsibleforuniversityeducationdigitalresourcescoveringprojectmanagementandimplementation.Accordingtoprovincesarrangements,ICenterhasarrangementsGongA、电磁感应B、电流的磁效应C、电流的热效应D、通电导体在磁场中受力35. 磁阻的单位是。A、亨/米B、1/亨C、

52、米/亨D、亨36. 滑差电动机的机械特性是。A、绝对硬特性B、硬特性C、稍有下降的机械特性D、软机械特性37. 电梯轿厢额定载重量为800kg，一般情况下轿厢可乘人应小、/珏44为满载。A、 10B、 5C、 8D、 1538. SR-8型双踪示波器中的电子开关处在“交替”状态时，适合于显示的信号波形。A、两个频率较低B、两个频率较高C、一个频率较低D、一个频率较高39. 在SBT-5型同步示波器使用的过程中，希望荧光屏上波形的幅度不大于厘米。A、 1B、 2C、 5D、 840. 三相并励换向器电动机调速适用于负载。A、恒转矩B、逐渐增大转矩C、恒功率D、逐渐减小转矩41. 感应同步器主要技

53、术参数有动态范围、精度、分辨率，其中动态范围为。A、0.240mB、0.220mC、0.340mD、0.320m42. 修理后的转子绕组要用钢丝箍扎紧，扎好钢丝箍部分的直径必须比转子铁心直径小。A、 2B、 3C、35D、 643. 相同条件下，V带和平带相比，承载能力。A、平带强B、一样强C、V带强约三倍D、V带稍强44. 工时定额通常包括作业时间、布置工作地时间、休息与时间，以及加工准备时间和结束时间。A、辅助B、生活需要C、停工损失D、非生产性工作时所消耗45. 在运算电路中，集成运算放大器工作在线性区域，因而要引入，利用反馈网络实现各种数学运算。A、深度正反馈B、深度负反馈C、浅度正反

54、馈D、浅度负反馈46. 工时定额通常包括作业时间、布置工作地时间、休息与生活需要的时间、以及和结束时间。A、加工准备B、辅助时间C、停工损失时间D、非生产性工作时所消耗的时间47. 1946年世界上第一台计算机由研制成功。A、英国B、法国C、日本D、美国48. 使用SR-8型双踪示波器时，如果找不到光点，可调整借以区别光点的位置。A、X轴位移B、Y轴位移C、辉度D、寻迹49. 交流双速电梯每次到达平层区域，电梯由快速变为慢速时，曳引电机处于制动状态。A、再生发电B、能耗C、反接D、电容50. 工时定额通常包括作业时间、布置工作地时间、与生活需要的时间、以及加工准备和结束时间等。A、辅助B、休息

55、C、停工损失D、非生产性工作时所消耗mprove,securitypreventioncapacityobviouslyenhanced,securityhiddenandsecurityaccidentobviouslyreduced,effectiveguaranteesinformationhealthdevelopment.XXEducationCentreregularlycarryoutday-to-daynetworksecuritymonitoringinformationandequipment.Bytheappropriatetechnicalstaff,XXnetwork

56、engineroommaintenancestaffonsitemanagementandmaintenanceonaregularbasis,scheduledviewingofnetworks,systems,databasesandassociatedequipmentoperatingconditions,andmakearecord.Computerlabmaintenancemanagersregularlyrunavarietyofdevicesintheschoolinformationsystemparameters,serversystemsandvariousdataba

57、ckup,sothattherewasahardwarefailureinasystemcrashcanresumequicklyandefficiently.Computerlabmaintenancemanagersestablishanetworkantivirussystem,AviraVirussystemonaregularbasis,andanti-virussoftwaresecurityassessment,timetoupgrade.Computerlabmaintenancemanagementforallequipmentintheroomaregulardust,re

58、placetheoldlabel.Regularlyhostservers,networkswitches,corerouting,firewalls,hardwaremaintenance,suchasequipmentfailure,shouldbeprocessedinatimelymannerinordertoensuresafeandreliableoperationofthesystem.InXXcityinformationandequipmentwasestablishedwithintheCentre,educationalmetropolitanareanetworkcentermachineroomXX.ServersanddatastoresandapplicationstosetupinXXCitymetropolitanareanetworkcentermachineroom.WindowsServe