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国家鉴定题库标准试卷(初级维修电工)

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thriftofexcellenttraditionalandstylelackdeepofunderstanding,one-sidedthinkinnowofgoodsituationXia,economicsmoothmorefastdevelopment,andreformmademajorprogress,andpeoplelivingsignificantlyimprove,andsocialthecareermadenewprogress,nonecessaryalwayshardhas,noawarenesstoChinaalsohasmanypovertyarea,andalsohasmanypovertypopulationofexists,morelivingimprovehas,moreneedkeephardofstyle.Threeisnotstrictlyhonest.otalthoughtunitsisawatersector,cleanself-disciplineawayfromhimselftoofar,norealprocessinggoodlivingofimproveandhard,andthriftexcellenttraditionalofrelationship,noeffectivedocomplywithConstitutionandpartyofregulationsmustfromIdoup,norightmercygoodbitterLe,andwealthofrelationship,norightawarenesstoincomplywithConstitutionandpartyofregulationsaspectseveryonehasaccountability.Four,futuredirectionandimprovementmeasures1,beliefandfaith,strengthenpartyspirit.Oneistofirmlyestablishthenobleidealsofstrugglefortheidealsofcommunism,communiststruggleforlife,readytosacrificeeverythingforthepartyandthepeople.Secondistocontinuouslyimprovethequalityandstandardofpolitical,conscientiouslystudyDengXiaopingtheoryand"threerepresents"importantthoughtandthescientificOutlookondevelopment,implementtheparty'sbasicprogramfortheprimarystageofsocialism,adheretothecorrectpoliticalorientation,maintainhighlyconsistentwiththeCPCCentralCommittee,isgoodattheoriesofsocialismwithChinesecharacteristicstoanalyzeandsolveproblems.Third,strengtheningthepartyspiritandtheworldtransformation,perseveranceofthepartyConstitution,relivePartyvowstoestablishcorrectworldOutlook,Outlookonlifeandtheworld,practicallyembodiesidealsandbeliefsintoaction,combineloftyidealsandpracticalactivities,transformingtheobjectiveworld,activelyparticipateinthegreatpracticeofbuildingsocialismwithChinesecharacteristics.2,keepthepurposeinconcept,changingthestyleofwork.First,keepinmindthatthepurposeofserving,adheretoassumingpowerforthepeople,keepinmindthepeopleandcareaboutpeople,andthejoysandsorrowsofthemasses,...
称名位单
名姓号证考准区地Accordingtocitydiscipline,andmunicipalorganizationDepartmentrequirements,todayweheld"implementimplementationindependentCommissionagainstcorruptionguidelineseffectivestrengtheningledcadresstyleconstruction"topicdemocraticlife,maintaskisclosecontactthought,andworkactual,controlcheckdistrictStandingCommitteeteamandthepersonalinimplementationindependentCommissionagainstcorruptionguidelinesShangexistsofproblem,in-depthcarriedoutcriticismandself-critical,furtherclearrectificationdirectionandmeasures,effectiveenhancedcleanpoliticsofconsciousnessandinitiative,firmsetgoodofrulingimage.Beforethemeeting,thewaywetakesurveyssolicitedaviews,combed,relatedtoteambuilding
职业技能鉴定国家题库

电工初级理论知识试卷
线注意事项
1、考试时间：120分钟。
2、请首先按要求在试卷的标封处填写您的姓名、准考证号和所在单位的名称。此3、请仔细阅读各种题目的回答要求，在规定的位置填写您的答案。4、不要在试卷上乱写乱画，不要在标封区填写无关的内容
过一总分得分



一、单项选择(第1题～第160题，每题0.5分，共80分。
超1.两台电动机M1与M2为顺序启动逆序停止控制，当停止时(。
A、M1先停，M2后停B、M2先停，M1后停C、M1与M2同时停D、M1停，M2不停
2.运行中的6KV油浸纸绝缘型电力电缆耐压标准是(倍额定电压。
准A、2.5B、5C、10D、203.电缆敷设到拐弯处，操作人员应站在电缆(进行操作。
A、内侧B、外侧C、上方D、下方不4.装设直线杆的防风拉线一般距离是隔(根电杆。
A、3B、5C、8D、105.高压绝缘棒应定期作耐压试验，试验周期为(。
A、三个月B、半年C、六个月D、一年题6.直线杆立杆时应力求垂直，其倾斜不应大于电杆梢径的(。
A、1/2B、1/3C、1/4D、1倍7.下列不属于节电措施的是(。
A、调压调速B、变频调速C、Y/△节能转换仪D、电动机保护器答8.为满足变压器经济运行的要求，电力变压器正常使用时负荷率不应低于(。
A、30%B、40%C、70%D、80%9.三极管型号3DG201中的G代表的意义是(。
生A、高电压B、高频小功率C、小功率D、硅材料10.架线施工时，在任一档的每一条导线，接头不能多于(个。
A、1B、2C、3D、411.某交流电周期为0.02秒，其频率为(。
考A、100HzB、200HzC、50HzD、0.00112.下列(不是晶体三极管的主要参数。
A、集电极最大允许电流ICmB、集电极最大允许功率损耗C、穿透电流D、触发电压13.自动Y－Δ降压启动控制线路是通过(实现延时的。
A、接触器B、熔断器C、时间继电器D、热继电器
rojectwork,cadres,cadresselectionandotheraspectsofatotalof19,furtherdefinedthedirectionofrectification,enhancingthepertinenceandeffectivenessofdemocraticlife.Goodforthismeeting,werequestedtheStandingCommitteeofthemunicipalpartyCommittee,municipalSecretaryGeneralTngWenjin,theCityCommissionfordisciplineinspectionStandingCommitteeYngXu,JiangJixue,DeputyDirectorofthepersonneloffice,andotherleadingcomradespresentguidanceallowsustowarmapplausefortheirwelcomeandthanks!Below,IfirstDistrictCommitteememberofthe20XXteamannualdemocraticmeetingimplementationofthecorrectivemeasures,aswellasmemberoftheteamandofmyownreportguidelinesfortheimplementationoftheindependentCommissionagainstcorruptionstatementinvitedleadersandcomradescriticism.First,annualpartyonthe20XXteam,Memberofdemocraticlifeactionplanimplementationyear20XX,districtdemocraticmeetingamemberoftheteamon"studyandpracticethescientificOutlookondevelopment"theme,findaprojectsupportingstrongenough,theindustrywellenough,urbanconstructionmanagementlevelneedstobeimandprojectshavesettledinShunqing.Third,strengthenprojectconstruction.Annualimplementationfocusproject39a,fixedassetsinvestmenttotalwillbreakthrough12billionyuan,createddistrictyilaihistoryhigh,Southdoordam,andfiveinshopoldcitytransformation,andYingChinaindustrialconcentrateddistrictconstruction,andcitymainroadconstruction,andNortheaststeamTradeCenter,andmodernfarmersindustryPark,andvocationaleducationcity,andlowrental,andalsoroomconstruction,andfeaturesblocksbuild,andfarmersmarkettransformation,and"ruralversion"Streettransformation,focusengineeringspeedupimplementation,effectivenessobviously.Expectedtobeachievedthisyear,area-wideGDP17billion
14.用符号或带注释的框概略地表示系统、分系统、成套装置或设备的基本组成、相互关系及主要特征的一种简图称为(。
A、电路图B、接线图C、位置图D、系统图15.塑料管布线用于有腐蚀性但没有(的场所。
A、爆炸B、机械损伤C、爆炸和机械损伤D、随意16.一只10欧电阻和一只5欧电阻并联时，其等效电阻(。
A、3.33欧B、5欧C、10欧D、15欧17.交流电器设备的绝缘主要考虑交流电的(。
A、平均值B、最大值C、有效值D、瞬时值18.测量直流电压时必须(。
A、红表笔接高电位B、黑表笔接正极C、可随意接D、将表串在电路中19.电阻起动是(电动机常用起动的方法之一。
A、他励B、自励C、同步D、单相异步20.在线路的分支处用(。
A、耐张杆B、终端杆C、T接杆D、直线杆21.要将一般线路分为两段，中间应加(。
A、耐张杆B、转角杆C、换位杆D、T接杆22.我国电力线路电压等级为220V、380V、(、6KV、10KV、500KV等。
A、800VB、1000VC、2KVD、3KV23.焦耳-楞次定律的数学表达式是(。A、U＝IR
B、P＝I2
R
C、P＝U2
/R
D、Q＝I2
RT
24.双速电动机控制线路是利用(个接触器将定子绕组接成YY的。
A、4B、3C、2D、125.下列关于三相异步电动机叙述正确的是(。
A、可直接作单相异步电动机使用B、允许短时间过负荷运行C、允许长时间短相运行D、允许过负荷运行26.焊条按国家标准分为(类，各类按主要性能又分为若干型号。
A、九B、八C、七D、五
27.工厂车间的行车需要位置控制，行车两头的终点处各安装一个位置开关，这两个位置开关要分别(在正转和反转控制线路中。
A、串联B、并联C、混联D、短接28.铝合金绞线的型号是(。
A、HLJB、LJC、TJD、LGJ29.照明线路中熔断器起(作用。
A、短路保护B、低压保护C、过压保护D、失压保护
30.4mm2
的BLX型铝芯橡皮绝缘导线明敷设时，室温25℃下其安全载流量为(A。A、35B、40C、45D、5031.三相异步电动机额定运行时的转差率一般为(。
A、0.01～0.07B、0.1～0.7C、0.7～1.0D、1～232.自耦变压器的用途是(。
A、变换阻抗B、改变频率C、变换电压D、改变相位
ntneedstobestrengthened,districtteamitself,suchasthefiveaspects.earof20XX,wefindouttheproblemsmentionedabove,basedonactualShunqingconstructionanddevelopment,conscientiouslysumupimprovements,achievingsignificantdevelopmentresultsandeffectivenessoftheirwork.(Ahighlighttheprojecthandle,maintainhighgrowthofinvestment.AdheretothestrategyasaFoundation,carryingoutprojectstopromoteincreasedstaminaimportant.Oneistoincreasetheintensityofprojectstowards.Activelyseeknationalandprovincialpolicysupport,superiorspecialtransferpayments,avarietyofadditionalincomewilltop700millionYuan,anumberofkeyinfrastructureprojects,livelihoodprojects,industrialprojectsintothecage.Second,increasingtheprojectattracts.Thisyearatotalof23signedamajorproject,ofwhich14billionproject,ChinaMetallurgicalgroup,vankegroup,Guangdonghengdagroup,aiwanRuentexgroup,ontheRIgroup,ShenzhenKaisa,jifengagriculturalmachinery,Mercedes-Benz,Audi4Sstoreandotherlargeenterpriseproved,livelihoodimproveme
thriftofexcellenttraditionalandstylelackdeepofunderstanding,one-sidedthinkinnowofgoodsituationXia,economicsmoothmorefastdevelopment,andreformmademajorprogress,andpeoplelivingsignificantlyimprove,andsocialthecareermadenewprogress,nonecessaryalwayshardhas,noawarenesstoChinaalsohasmanypovertyarea,andalsohasmanypovertypopulationofexists,morelivingimprovehas,moreneedkeephardofstyle.Threeisnotstrictlyhonest.otalthoughtunitsisawatersector,cleanself-disciplineawayfromhimselftoofar,norealprocessinggoodlivingofimproveandhard,andthriftexcellenttraditionalofrelationship,noeffectivedocomplywithConstitutionandpartyofregulationsmustfromIdoup,norightmercygoodbitterLe,andwealthofrelationship,norightawarenesstoincomplywithConstitutionandpartyofregulationsaspectseveryonehasaccountability.Four,futuredirectionandimprovementmeasures1,beliefandfaith,strengthenpartyspirit.Oneistofirmlyestablishthenobleidealsofstrugglefortheidealsofcommunism,communiststruggleforlife,readytosacrificeeverythingforthepartyandthepeople.Secondistocontinuouslyimprovethequalityandstandardofpolitical,conscientiouslystudyDengXiaopingtheoryand"threerepresents"importantthoughtandthescientificOutlookondevelopment,implementtheparty'sbasicprogramfortheprimarystageofsocialism,adheretothecorrectpoliticalorientation,maintainhighlyconsistentwiththeCPCCentralCommittee,isgoodattheoriesofsocialismwithChinesecharacteristicstoanalyzeandsolveproblems.Third,strengtheningthepartyspiritandtheworldtransformation,perseveranceofthepartyConstitution,relivePartyvowstoestablishcorrectworldOutlook,Outlookonlifeandtheworld,practicallyembodiesidealsandbeliefsintoaction,combineloftyidealsandpracticalactivities,transformingtheobjectiveworld,activelyparticipateinthegreatpracticeofbuildingsocialismwithChinesecharacteristics.2,keepthepurposeinconcept,changingthestyleofwork.First,keepinmindthatthepurposeofserving,adheretoassumingpowerforthepeople,keepinmindthepeopleandcareaboutpeople,andthejoysandsorrowsofthemasses,...Accordingtocitydiscipline,andmunicipalorganizationDepartmentrequirements,todayweheld"implementimplementationindependentCommissionagainstcorruptionguidelineseffectivestrengtheningledcadresstyleconstruction"topicdemocraticlife,maintaskisclosecontactthought,andworkactual,controlcheckdistrictStandingCommitteeteamandthepersonalinimplementationindependentCommissionagainstcorruptionguidelinesShangexistsofproblem,in-depthcarriedoutcriticismandself-critical,furtherclearrectificationdirectionandmeasures,effectiveenhancedcleanpoliticsofconsciousnessandinitiative,firmsetgoodofrulingimage.Beforethemeeting,thewaywetakesurveyssolicitedaviews,combed,relatedtoteambuilding33.电工常用的电气图有(。
A、系统图B、电路图
C、接线图D、上述三种说法都对34.下列(操作可以不必与电力主管部门联系。
A、更换电压互感器一次保险B、更换电压互感器二次保险C、投、切保护压板D、拉路选择查接地35.380V、2KW交流异步电动机交流耐压试验电压为(。
A、380VB、500VC、1000VD、1500V36.在电气图中，主电路用(线表示。
A、虚线B、粗实线C、细实线D、粗虚线37.下列关于登高板维护与使用中不正确的方法是(。
A、使用后挂在通风干燥处保存B、使用后挂在阴凉处保存C、使用前要检查绳索和踏板D、登杆时，勾子一定向上38.下列数据属瓷管长度规格是(。
A、102mmB、152mmC、182mmD、202mm39.在纯电感交流电路中，下列各式正确的是(。A、i＝u/XLB、I＝U/XLC、i＝U/XLD、I＝ωLU
40.容易获得良好焊缝成形的焊接位置是(。
A、平焊位置B、横焊位置C、立焊位置D、仰焊位置41.两只"100W、220V"的灯泡串联接在220V电源上，每个灯泡的功率是(。
A、100WB、50WC、25WD、200W42.工作人员正常工作中活动范围与带电设备(20～35千伏的安全距离是(米。A、0.35B、0.60C、0.90D、1.5043.三相变压器的额定电压是指(。
A、线电压的最大值B、相电压的最大值C、线电压的有效值D、相电压的有效值44.单相异步电动机是由(部分组成的。
A、2B、3C、4D、545.起锯时，锯条与工件的夹角一般为(左右。
A、15°B、20°C、30°D、45°46.双速异步电动机调速方法有(种。
A、1B、2C、3D、447.常见的导电用铝材特一号铝的含铝量大于(。
A、99.7%B、99.6%C、99.5%D、以上三种都不对48.兆欧表测绝缘电阻时，手摇转速应为(。
A、60转/分B、120转/分C、越快越好D、无规定49.与铝导线相比，下列不属于铜导线优点的是(。
A、电阻系数小B、焊接性能好C、电阻系数大D、机械强度高50.下列电机不属于单相异步电动机的是(。
A、吊扇电机B、家用冰箱电机C、剃须刀电机D、理发吹风机电机51.单相全波整流电路由(组成。A、一台变压器、两个三级管和负载rojectwork,cadres,cadresselectionandotheraspectsofatotalof19,furtherdefinedthedirectionofrectification,enhancingthepertinenceandeffectivenessofdemocraticlife.Goodforthismeeting,werequestedtheStandingCommitteeofthemunicipalpartyCommittee,municipalSecretaryGeneralTngWenjin,theCityCommissionfordisciplineinspectionStandingCommitteeYngXu,JiangJixue,DeputyDirectorofthepersonneloffice,andotherleadingcomradespresentguidanceallowsustowarmapplausefortheirwelcomeandthanks!Below,IfirstDistrictCommitteememberofthe20XXteamannualdemocraticmeetingimplementationofthecorrectivemeasures,aswellasmemberoftheteamandofmyownreportguidelinesfortheimplementationoftheindependentCommissionagainstcorruptionstatementinvitedleadersandcomradescriticism.First,annualpartyonthe20XXteam,Memberofdemocraticlifeactionplanimplementationyear20XX,districtdemocraticmeetingamemberoftheteamon"studyandpracticethescientificOutlookondevelopment"theme,findaprojectsupportingstrongenough,theindustrywellenough,urbanconstructionmanagementlevelandprojectshavesettledinShunqing.Third,strengthenprojectconstruction.Annualimplementationfocusproject39a,fixedassetsinvestmenttotalwillbreakthrough12billionyuan,createddistrictyilaihistoryhigh,Southdoordam,andfiveinshopoldcitytransformation,andYingChinaindustrialconcentrateddistrictconstruction,andcitymainroadconstruction,andNortheaststeamTradeCenter,andmodernfarmersindustryPark,andvocationaleducationcity,andlowrental,andalsoroomconstruction,andfeaturesblocksbuild,andfarmersmarkettransformation,and"ruralversion"Streettransformation,focusengineeringspeedupimplemntation,effectivenessobviously.Expectedtobeachievedthisyear,area-wideGDP17billion
B、一台变压器、两个二级管和负载
C、一台变压器、一个二级管、一个三级管和负载D、一台变压器、一个二级管、一个稳压器和负载52.下列材料中哪种材料的电阻率最大(。
A、石墨B、超导体C、大地D、瓷瓶53.关于热继电器在电路中的使用，下列叙述正确的是(。
A、过载后切断控制回路B、起电源过压保护作用C、起短路保护作用D、直接切断主回路54.交流电的周期越长，则交流电变化的越(。
A、快B、慢C、不变D、不确定
55.穿管布线时，同一回路的可以一管多线，但管内导线的总面积不应超过管内截面积的(。A、40%B、50%C、60%D、70%56.有三只电阻阻值均为R，当二只电阻并联与另一只电阻串联后，总电阻为(。A、R/3B、3R/2C、3RD、R57.电位的单位是(。
A、安培B、库仑C、伏特D、瓦特58.一只电动机额定电流是6.8A，其保险丝应选(。
A、5AB、15AC、30AD、60A59.除对接接头外，常用的焊接接头形式是(。
A、搭接接头B、T形接头C、十字接头D、端接接头60.一个1Kw的电炉，在额定电压下工作10分钟，其发热量为(焦耳。A、10B、6×105C、103D、60
61.关于接触器的辅助触头，下列叙述正确的是(。
A、经常接在电动机主回路中B、可以接在电动机主回路中C、经常接在电动机控制回路中D、不常使用62.电工绝缘材料按极限温度划分为(个耐热等级。
A、五B、六C、七D、八63.(主要用于安装接线、线路检查、线路维修和故障处理。
A、系统图B、施工图C、接线图D、电路图64.晶体三极管输出特性分为三个区分别是(。
A、饱和区、开关区和截止区B、开关区、导通区和截止区C、放大区、饱和区和截止区D、开关区、放大区和导通区65.操作票的操作项目设备要填写(。
A、设备名称B、设备编号
C、设备名称和设备编号D、设备名称或设备编号66.三相鼠笼式异步电动机的定子是由(部分组成的。
A、2B、3C、4D、567.变压器运行效率最高的条件是(。
A、Ρo＝ΡCuB、βm>1C、βm<1D、低负荷运行68.根据基尔霍夫第二定律列出的独立回路方程数等于电路的(。
A、节点数B、网孔数C、支路数D、回路数
ntneedstobestrengthened,districtteamitself,suchasthefiveaspects.earof20XX,wefindouttheproblemsmentionedabove,basedonactualShunqingconstructionanddevelopment,conscientiouslysumupimprovements,achievingsignificantdevelopmentresultsandeffectivenessoftheirwork.(Ahighlighttheprojecthandle,maintainhighgrowthofinvestment.AdheretothestrategyasaFoundation,carryingoutprojectstopromoteincreasedstaminaimportant.Oneistoincreasetheintensityofprojectstowards.Activelyseeknationalandprovincialpolicysupport,superiorspecialtransferpayments,avarietyofadditionalincomewilltop700millionYuan,anumberofkeyinfrastructureprojects,livelihoodprojects,industrialprojectsintothecage.Second,increasingtheprojectattracts.Thisyearatotalof23signedamajorproject,ofwhich14billionproject,ChinaMetallurgicalgroup,vankegroup,Guangdonghengdagroup,aiwanRuentexgroup,ontheRIgroup,ShenzhenKaisa,jifengagriculturalmachinery,Mercedes-Benz,Audi4Sstoreaneedstobeimproved,livelihoodimprovemendotherlargeenterprise
thriftofexcellenttraditionalandstylelackdeepofunderstanding,one-sidedthinkinnowofgoodsituationXia,economicsmoothmorefastdevelopment,andreformmademajorprogress,andpeoplelivingsignificantlyimprove,andsocialthecareermadenewprogress,nonecessaryalwayshardhas,noawarenesstoChinaalsohasmanypovertyarea,andalsohasmanypovertypopulationofexists,morelivingimprovehas,moreneedkeephardofstyle.Threeisnotstrictlyhonest.otalthoughtunitsisawatersector,cleanself-disciplineawayfromhimselftoofar,norealprocessinggoodlivingofimproveandhard,andthriftexcellenttraditionalofrelationship,noeffectivedocomplywithConstitutionandpartyofregulationsmustfromIdoup,norightmercygoodbitterLe,andwealthofrelationship,norightawarenesstoincomplywithConstitutionandpartyofregulationsaspectseveryonehasaccountability.Four,futuredirectionandimprovementmeasures1,beliefandfaith,strengthenpartyspirit.Oneistofirmlyestablishthenobleidealsofstrugglefortheidealsofcommunism,communiststruggleforlife,readytosacrificeeverythingforthepartyandthepeople.Secondistocontinuouslyimprovethequalityandstandardofpolitical,conscientiouslystudyDengXiaopingtheoryand"threerepresents"importantthoughtandthescientificOutlookondevelopment,implementtheparty'sbasicprogramfortheprimarystageofsocialism,adheretothecorrectpoliticalorientation,maintainhighlyconsistentwiththeCPCCentralCommittee,isgoodattheoriesofsocialismwithChinesecharacteristicstoanalyzeandsolveproblems.Third,strengtheningthepartyspiritandtheworldtransformation,perseveranceofthepartyConstitution,relivePartyvowstoestablishcorrectworldOutlook,Outlookonlifeandtheworld,practicallyembodiesidealsandbeliefsintoaction,combineloftyidealsandpracticalactivities,transformingtheobjectiveworld,activelyparticipateinthegreatpracticeofbuildingsocialismwithChinesecharacteristics.2,keepthepurposeinconcept,changingthestyleofwork.First,keepinmindthatthepurposeofserving,adheretoassumingpowerforthepeople,keepinmindthepeopleandcareaboutpeople,andthejoysandsorrowsofthemasses,...Accordingtocitydiscipline,andmunicipalorganizationDepartmentrequirements,todayweheld"implementimplementationindependentCommissionagainstcorruptionguidelineseffectivestrengtheningledcadresstyleconstruction"topicdemocraticlife,maintaskisclosecontactthought,andworkactual,controlcheckdistrictStandingCommitteeteamandthepersonalinimplementationindependentCommissionagainstcorruptionguidelinesShangexistsofproblem,in-depthcarriedoutcriticismandself-critical,furtherclearrectificationdirectionandmeasures,effectiveenhancedcleanpoliticsofconsciousnessandinitiative,firmsetgoodofrulingimage.Beforethemeeting,thewaywetakesurveyssolicitedaviews,combed,relatedtoteambuilding69.电动机的额定功率是指(。
A、输入的有功功率B、输入的视在功率C、轴上输出的机械功率D、本身损耗的功率
70.一功耗1000瓦，电压为180V的负载应按(种方案选择功率表量限来测量该负载功率。
A、5安，150伏B、5安，300伏C、10安，150伏D、10安，300伏71.电流互感器副边回路中的仪表和继电器必须(。
A、串联B、并联C、混联D、可任意联接72.在下列各项中，DZ15系列自动空气开关没有(保护作用。
A、过载B、短路C、过载、短路D、断相73.根据绝缘材料不同分类电缆时，下列哪一项不属于电缆的分类(。A、交联聚乙烯绝缘电缆B、塑料绝缘电缆C、铠装电力电缆D、橡胶绝缘电缆74.交流电的有效值是(的0.707倍。
A、最大值B、有效值C、瞬时值D、平均值75.在95平方毫米架空线路施工中应选(号平口式紧线钳。
A、1B、2C、3D、以上3种均可
2
76.2.5mm的BX型铜芯橡皮绝缘导线明敷设时，室温25℃下其安全载流量为(A。A、35B、40C、45D、5077.若触电者心跳停止，呼吸尚存，应立即对其施行(方法急救。
A、仰卧压胸法B、俯卧压胸法C、胸外心脏挤压法D、口对口呼吸法78.运动导体切割磁力线产生最大感应电动势时，它与磁力线的夹角为(。
A、0°B、90°C、45°D、180°79.为安全起见，安装电压互感器时，必须(。
A、铁心接地B、铁心和副绕组的一端要可靠接地C、副边绕组的一端接地D、高压绕组的一端接地
80."220V、100W"的灯泡经一段导线接在220V电源上，灯泡消耗的实际功率为81W，则导线上消耗的功率是(。
A、19WB、9.2WC、10WD、81W81.电容器的容量大小与(无关。
A、极板面积B、电源电压C、介质厚度D、介电系数82.装设接地线必须(。
A、先装接地端后装导体端B、先装导体端后装接地端C、接地端、导体端同时装D、无规定83.在线路的电杆中，(型约占全部电杆数的80%左右。
A、耐张杆B、转角杆C、直线杆D、分支杆84.实现三相异步电动机的正反转是正转接触器的(。
A、常闭触头和反转接触器的常闭触头连联锁B、常开触头和反转接触器的常开触头连联锁C、常闭触头和反转接触器的常开触头连联锁D、常开触头和反转接触器的常闭触头连联锁85.表述电源内部做功能力的物理量叫电源的(。
A、端电压B、电位C、电流D、电动势86.用万用表电阻档判断二极管管脚极性时应选用(。
A、R×1档B、R×100K或R×1K档C、R×10档D、任意档
87.一电压互感器，其变压比为20，若被测电路电压为1千伏，则电压表读数为(。
andprojectshavesettledinShunqing.Third,strengthenprojectconstruction.Annualimplementationfocusproject39a,fixedassetsinvestmenttotalwillbreakthrough12billionyuan,createddistrictyilaihistoryhigh,Southdoordam,andfiveinshopoldcitytransformation,andYingChinaindustrialconcentrateddistrictconstruction,andcitymainroadconstruction,andNortheaststeamTradeCenter,andmodernfarmersindustryPark,andvocationaleducationcity,andlowrental,andalsoroomconstruction,andfeaturesblocksbuild,andfarmersmarkettransformation,and"ruralversion"Streettransformation,focusengineeringspeedupimplementation,effectivenessobviously.Expectedtobeachievedthisyear,area-wideGDP17billion
A、20000伏B、1000伏C、50伏D、100伏88.电容器禁止带电荷合闸，电容器再次合闸时，必须在断开(时间之后。
A、1minB、2minC、3minD、10min89.下列数据中，属于用电特性指标的资料数据是(。
A、月平均负荷B、最大负荷利用小时数C、日负荷率D、负荷逐月变化曲线90.我国规定的常用安全电压是(伏。
A、42B、36C、24D、691.无载分接开关的调节范围是额定输出电压的(。
A、±3%B、±5%C、±10%D、±15%92.35KV线路进出变电所段一般需要架设(米避雷线。
A、500B、800C、1000D、300093.关于测电器的维护，下列(说法是不正确的。
A、测电器用后应放于匣内B、测电器用后应放于干燥处
C、测电器应按规程定期检查试验D、测电器对存放的环境没有特殊要求94.标有"220V、100W"的灯泡，接在380v电源上，则灯泡的实际功率比额定功率(。
A、小B、大C、一样大D、与额定功率无关95.交流电的大小和方向是(。
A、随意变化的B、不随时间变化的C、固定不变化D、随时间按周期性变96.纯电感交流电路欧姆定律表达式为(。A、U＝ωLIB、u＝XLIC、U＝LID、U＝iXL
97.在下列电杆中，既可能属于承力杆，又可能属于直线杆的是(。
A、直线杆B、跨越杆C、终端杆D、分支杆98.通常选择接触器主触头的额定电压应(负载回路的额定电压。
A、小于B、等于C、大于D、大于或等于99.使用钳形电流表测量时，下列叙述正确的是(。A、被测电流导线应卡在钳口张开处B、被测电流导线应卡在钳口中央
C、被测电流导线卡在钳口中后可以由大到小切换量程D、被测电流导线卡在钳口中后可以由小到大切换量程100.型号中右边的数据是指电压互感器的(。
A、副边额定电流B、原边额定电压C、额定容量D、准确度等级101.三相鼠笼式异步电动机的起动方法有降压起动和(。
A、Y/△起动B、自耦变压器降压起动C、变频起动D、直接起动102.快热式电烙铁持续通电时间不超过(。
A、1minB、2minC、3minD、5min103.用(表可判别三相异步电动机定子绕组首尾端。
A、电压表B、兆欧表C、电度表D、万用表104.二极管2CZ54D的正向压降约为(。
rojectwork,cadres,cadresselectionandotheraspectsofatotalof19,furtherdefinedthedirectionofrectification,enhancingthepertinenceandeffectivenessofdemocraticlife.Goodforthismeeting,werequestedtheStandingCommitteeofthemunicipalpartyCommittee,municipalSecretaryGeneralTngWenjin,theCityCommissionfordisciplineinspectionStandingCommitteeYngXu,JiangJixue,DeputyDirectorofthepersonneloffice,andotherleadingcomradespresentguidanceallowsustowarmapplausefortheirwelcomeandthanks!BelowIfirstDistrictCommitteememberofthe20XXteamannualdemocraticmeetingimplementationofthecorrectivemeasures,aswellasmemberoftheteamandofmyownreportguidelinesfortheimplementationoftheindependentCommissionagainstcorruptionstatementinvitedleadersandcomradescriticism.First,annualpartyonthe20XXteam,Memberofdemocraticlifeactionplanimplementationyear20XX,districtdemocraticmeetingamemberoftheteamon"studyandpracticethescientificOutlookondevelopment"theme,findaprojectsupportingstrongenough,theindustrywellenough,urbanconstructionmanagementlevelneedstobeimproved,livelihoodimprovementneedstobestrengthened,districtteamitself,suchasthefiveaspects.earof20XX,wefindouttheproblemsmentionedabove,basedonactualShunqingconstructionanddevelopment,conscientiouslysumupimprovements,achievingsignificantdevelopmentresultsandeffectivenessoftheirwork.(Ahighlighttheprojecthandle,maintainhighgrowthofinvestment.AdheretothestrategyasaFoundation,carryingoutprojectstopromoteincreasedstaminaimportant.Oneistoincreasetheintensityofprojectstowards.Activelyseeknationalandprovincialpolicysupport,superiorspecialtransferpayments,avarietyofadditionalincomewilltop700millionYuan,anumberofkeyinfrastructureprojects,livelihoodprojects,industrialprojectsintothecage.Second,increasingtheprojectattracts.Thisyearatotalof23signedamajorproject,ofwhich14billionproject,ChinaMetallurgicalgroup,vankegroup,Guangdonghengdagroup,TaiwanRuentexgroup,ontheRIgroup,ShenzhenKaisa,jifengagriculturalmachinery,Mercedes-Benz,Audi4Sstoreandotherlargeenterprises试卷编码：08TL-002
第3页共5页

thriftofexcellenttraditionalandstylelackdeepofunderstanding,one-sidedthinkinnowofgoodsituationXia,economicsmoothmorefastdevelopment,andreformmademajorprogress,andpeoplelivingsignificantlyimprove,andsocialthecareermadenewprogress,nonecessaryalwayshardhas,noawarenesstoChinaalsohasmanypovertyarea,andalsohasmanypovertypopulationofexists,morelivingimprovehas,moreneedkeephardofstyle.Threeisnotstrictlyhonest.otalthoughtunitsisawatersector,cleanself-disciplineawayfromhimselftoofar,norealprocessinggoodlivingofimproveandhard,andthriftexcellenttraditionalofrelationship,noeffectivedocomplywithConstitutionandpartyofregulationsmustfromIdoup,norightmercygoodbitterLe,andwealthofrelationship,norightawarenesstoincomplywithConstitutionandpartyofregulationsaspectseveryonehasaccountability.Four,futuredirectionandimprovementmeasures1,beliefandfaith,strengthenpartyspirit.Oneistofirmlyestablishthenobleidealsofstrugglefortheidealsofcommunism,communiststruggleforlife,readytosacrificeeverythingforthepartyandthepeople.Secondistocontinuouslyimprovethequalityandstandardofpolitical,conscientiouslystudyDengXiaopingtheoryand"threerepresents"importantthoughtandthescientificOutlookondevelopment,implementtheparty'sbasicprogramfortheprimarystageofsocialism,adheretothecorrectpoliticalorientation,maintainhighlyconsistentwiththeCPCCentralCommittee,isgoodattheoriesofsocialismwithChinesecharacteristicstoanalyzeandsolveproblems.Third,strengtheningthepartyspiritandtheworldtransformation,perseveranceofthepartyConstitution,relivePartyvowstoestablishcorrectworldOutlook,Outlookonlifeandtheworld,practicallyembodiesidealsandbeliefsintoaction,combineloftyidealsandpracticalactivities,transformingtheobjectiveworld,activelyparticipateinthegreatpracticeofbuildingsocialismwithChinesecharacteristics.2,keepthepurposeinconcept,changingthestyleofwork.First,keepinmindthatthepurposeofserving,adheretoassumingpowerforthepeople,keepinmindthepeopleandcareaboutpeople,andthejoysandsorrowsofthemasses,...Accordingtocitydiscipline,andmunicipalorganizationDepartmentrequirements,todayweheld"implementimplementationindependentCommissionagainstcorruptionguidelineseffectivestrengtheningledcadresstyleconstruction"topicdemocraticlife,maintaskisclosecontactthought,andworkactual,controlcheckdistrictStandingCommitteeteamandthepersonalinimplementationindependentCommissionagainstcorruptionguidelinesShangexistsofproblem,in-depthcarriedoutcriticismandself-critical,furtherclearrectificationdirectionandmeasures,effectiveenhancedcleanpoliticsofconsciousnessandinitiative,firmsetgoodofrulingimage.Beforethemeeting,thewaywetakesurveyssolicitedaviews,combed,relatedtoteambuildingA、0.2VB、0.7VC、0.9VD、1.2V105.电流强度的单位是(。
A、伏特B、瓦C、欧姆D、安培106.导线穿墙时，(过墙管。
A、应装B、不用装C、随意D、无规定107.一台单相变压器，I2为20安，N1为200匝，N2为20匝，则原边电流I1为(安。A、40B、20C、10D、2108.DZ4系列自动空气断路器的额定电流小于(安。
A、50B、55C、60D、65109.下列(不属于高压基本安全用具。
A、绝缘杆B、绝缘手套C、绝缘夹钳D、高压试电笔110.绝缘夹钳应定期作耐压试验，试验周期为(。
A、三个月B、半年C、六个月D、一年111.并联运行变压器的容量比的要求不宜大于(。
A、3：1B、3：2C、2：1D、4：3112.电路中任意两点电位的差值称为这两点的(。
A、电动势B、电位C、电压D、电场强度113.有效值为220伏特的交流电压其最大值是(。
A、220vB、380vC、250vD、311v114.电动葫芦一般采用(方式供电。
A、滑接线B、悬吊式移动电缆C、电缆线D、钢管布线115.架空线路电杆使用卡盘时，卡盘上口距地面距离不应小于(。
A、0.2米B、0.3米C、0.5米D、0.8米116.电气符号包括(项内容。
A、图形符号B、项目代号、回路标号C、文字符号D、含A、B两种说法
117.一台电动机的额定电流为78A，采用铝芯聚氯乙烯四芯电缆直接敷设，应选电缆规格为(mm2
。A、3×10+1×6B、3×16+1×6C、3×25+1×10D、3×50+1×16118.终端杆采用单侧横担时应安装在(一侧。
A、电源侧B、受电侧C、拉线侧D、张力侧119.若二极管正反向电阻相差很大说明该管(。
A、已击穿B、单向导电性能差C、单向导电性能好D、内部已断路120.电气安装工程上的标高是以(作为标高的零点。
A、海平面B、室外地平面C、室内地平面D、均可以121.铝芯聚氯乙烯绝缘护套线的型号为(。
A、BLVB、BLRC、BVVD、BLVV122.同材料同长度导线的电阻与截面积的关系是(。
A、截面积越大电阻越大B、截面积越大电阻越小C、不确定D、无关
123.在交流电路中，电阻上通过的电流的瞬时值正确的是(。A、i＝UR/RB、i＝uR/RC、I＝uR/RD、Im＝UR/Rrojectwork,cadres,cadresselectionandotheraspectsofatotalof19,furtherdefinedthedirectionofrectification,enhancingthepertinenceandeffectivenessofdemocraticlife.Goodforthismeeting,werequestedtheStandingCommitteeofthemunicipalpartyCommittee,municipalSecretaryGeneralTngWenjin,theCityCommissionfordisciplineinspectionStandingCommitteeYngXu,JiangJixue,DeputyDirectorofthepersonneloffice,andotherleadingcomradespresentguidanceallowsustowarmapplausefortheirwelcomeandthanks!Below,IfirstDistrictCommitteememberofthe20XXteamannualdemocraticmeetingimplementationofthecorrectivemeasures,aswellasmemberoftheteamandofmyownreportguidelinesfortheimplementationoftheindependentCommissionagainstcorruptionstatementinvitedleadersandcomradescriticism.First,annualpartyonthe20XXteam,Memberofdemocraticlifeactionplanimplementationyear20XX,districtdemocraticmeetingamemberoftheteamon"studyandpracticethescientificOutlookondevelopment"theme,findaprojectsupportingstrongenough,theindustrywellenough,urbanconstructionmanagementlevelandprojectshavesettledinShunqing.Third,strengthenprojectconstruction.Annualimplementationfocusproject39a,fixedassetsinvestmenttotalwillbreakthrough12billionyuan,createddistrictyilaihistoryhigh,Southdoordam,andfiveinshopoldcitytransformation,andYingChinaindustrialconcentrateddistrictconstruction,andcitymainroadconstruction,andNortheaststeamTradeCenter,andmodernfarmersindustryPark,andvocationaleducationcity,andlowrental,andalsoroomconstruction,andfeaturesblocksbuild,andfarmersmarkettransformation,and"ruralversion"Streettransformation,focusengineeringspeedupimplemntation,effectivenessobviously.Expectedtobeachievedthisyear,area-wideGDP17billion
124.在35KV线路直线杆上，当采用铁横担时，其悬式绝缘子的串联片数一般为(片。A、2B、3C、4D、5125.事故跳闸后再送电的油开关，应在3小时内最少检查(次。
A、2B、3C、5D、8
126.两根同种材料的电阻丝，长度之比为1：5，横截面积之比为2：3，则它们的电阻之比为(。A、1：5B、2：3C、3：10D、10：3127.判断三极管极性时不能用万用表的(档。
A、R×10B、R×100C、R×1KD、R×10K128.在要求一定范围内能进行平滑调速的设备中，广泛采用(电动机。
A、同步B、侗服C、鼠笼式D、绕线式129.若电路某两点间电压UAB为12V，其中B点的电位4V，那么A点的电位为(。A、8VB、10VC、16VD、12V130.项目指的是在图上通常用一个(表示的实体。
A、文字符号B、电气符号C、种类代号D、图形符号
131.某晶体三极管电流IB由10μA变化到50μA，IC由1.2mA增加到4.4mA，此时该管的电流放大倍数为(。
A、50B、60C、10D、80132.电压表的附加电阻必须与表头(。
A、串联B、并联C、混联D、任意联接133.在交流电路中感抗与电路频率(。
A、成正比B、成反比C、无关D、不一定134.下列各项(不属于衡量电能质量指标。
A、电压偏差B、电压波动C、网损D、频率偏差135.每根电缆管的弯头不应超过(个。
A、2B、3C、4D、5136.电阻电路中电压有效值为20V，电阻为4Ω，则通过电阻的电流最大值为(。A、5AB、0.5AC、8AD、4A137.下列哪个(准确度等级为国家标准规定的有功电度表的准确度等级。
A、0.1级B、0.5级C、1.0级D、5.0级138.型号LFC～10/0.5～300中的300是指电流互感器的(。
A、原边额定电压B、原边额定电流C、副边额定电流D、额定功率139.线路的转弯处应用(。
A、耐线杆B、T接杆C、终端杆D、转角杆140.电气设备的运行操作记录、巡视检查记录、设备缺陷记录应属供电技术资料中的(。A、档案资料B、一般资料C、参考资料D、特殊资料141.一台4千乏，0.4千伏单相移相电容工作在额定状态下，其电流为(。
A、10AB、100AC、20AD、1A142.电感的国际单位是(。
A、法拉B、欧姆C、亨利D、瓦特143.母线搭接时，其搭接长度(母线的宽度。
A、不应小于B、应小于C、等于D、随意144.单相电容式异步电动机的定子绕组为(个。
A、1B、2C、3D、4145.电焊变压器属于(。
ntneedstobestrengthened,districtteamitself,suchasthefiveaspects.earof20XX,wefindouttheproblemsmentionedabove,basedonactualShunqingconstructionanddevelopment,conscientiouslysumupimprovements,achievingsignificantdevelopmentresultsandeffectivenessoftheirwork.(Ahighlighttheprojecthandle,maintainhighgrowthofinvestment.AdheretothestrategyasaFoundation,carryingoutprojectstopromoteincreasedstaminaimportant.Oneistoincreasetheintensityofprojectstowards.Activelyseeknationalandprovincialpolicysupport,superiorspecialtransferpayments,avarietyofadditionalincomewilltop700millionYuan,anumberofkeyinfrastructureprojects,livelihoodprojects,industrialprojectsintothecage.Second,increasingtheprojectattracts.Thisyearatotalof23signedamajorproject,ofwhich14billionproject,ChinaMetallurgicalgroup,vankegroup,Guangdonghengdagroup,aiwanRuentexgroup,ontheRIgroup,ShenzhenKaisa,jifengagriculturalmachinery,Mercedes-Benz,Audi4Sstoreandotherlargeenterpriseneedstobeimproved,livelihoodimproveme
thriftofexcellenttraditionalandstylelackdeepofunderstanding,one-sidedthinkinnowofgoodsituationXia,economicsmoothmorefastdevelopment,andreformmademajorprogress,andpeoplelivingsignificantlyimprove,andsocialthecareermadenewprogress,nonecessaryalwayshardhas,noawarenesstoChinaalsohasmanypovertyarea,andalsohasmanypovertypopulationofexists,morelivingimprovehas,moreneedkeephardofstyle.Threeisnotstrictlyhonest.otalthoughtunitsisawatersector,cleanself-disciplineawayfromhimselftoofar,norealprocessinggoodlivingofimproveandhard,andthriftexcellenttraditionalofrelationship,noeffectivedocomplywithConstitutionandpartyofregulationsmustfromIdoup,norightmercygoodbitterLe,andwealthofrelationship,norightawarenesstoincomplywithConstitutionandpartyofregulationsaspectseveryonehasaccountability.Four,futuredirectionandimprovementmeasures1,beliefandfaith,strengthenpartyspirit.Oneistofirmlyestablishthenobleidealsofstrugglefortheidealsofcommunism,communiststruggleforlife,readytosacrificeeverythingforthepartyandthepeople.Secondistocontinuouslyimprovethequalityandstandardofpolitical,conscientiouslystudyDengXiaopingtheoryand"threerepresents"importantthoughtandthescientificOutlookondevelopment,implementtheparty'sbasicprogramfortheprimarystageofsocialism,adheretothecorrectpoliticalorientation,maintainhighlyconsistentwiththeCPCCentralCommittee,isgoodattheoriesofsocialismwithChinesecharacteristicstoanalyzeandsolveproblems.Third,strengtheningthepartyspiritandtheworldtransformation,perseveranceofthepartyConstitution,relivePartyvowstoestablishcorrectworldOutlook,Outlookonlifeandtheworld,practicallyembodiesidealsandbeliefsintoaction,combineloftyidealsandpracticalactivities,transformingtheobjectiveworld,activelyparticipateinthegreatpracticeofbuildingsocialismwithChinesecharacteristics.2,keepthepurposeinconcept,changingthestyleofwork.First,keepinmindthatthepurposeofserving,adheretoassumingpowerforthepeople,keepinmindthepeopleandcareaboutpeople,andthejoysandsorrowsofthemasses,...Accordingtocitydiscipline,andmunicipalorganizationDepartmentrequirements,todayweheld"implementimplementationindependentCommissionagainstcorruptionguidelineseffectivestrengtheningledcadresstyleconstruction"topicdemocraticlife,maintaskisclosecontactthought,andworkactual,controlcheckdistrictStandingCommitteeteamandthepersonalinimplementationindependentCommissionagainstcorruptionguidelinesShangexistsofproblem,in-depthcarriedoutcriticismandself-critical,furtherclearrectificationdirectionandmeasures,effectiveenhancedcleanpoliticsofconsciousnessandinitiative,firmsetgoodofrulingimage.Beforethemeeting,thewaywetakesurveyssolicitedaviews,combed,relatedtoteambuildingA、控制变压器B、特殊变压器C、电力变压器D、升压变压器146.在正弦交流电路中容抗与频率成(。
A、正比B、反比C、无关D、不一定147.硬铝母线截面在50×5及以下时，平弯弯曲半径为其厚度的(倍。
A、1B、1.5C、2D、2.5148.用万用表测得三极管的任意二极间的电阻均很小，说明该管(。A、二个PN结均击穿B、二个PN结均开路
C、发射结击穿，集电结正常D、发射结正常，集电结击穿149.万用表的表头是一种高灵敏度(的直流电流表。
A、磁电式B、电磁式C、感应式D、电动式150.单相交流电路中性线的截面应为(。
A、相线的1/2B、相线的1/3C、和相线相同D、相线的1.5倍151.如果电流互感器的变流比为100/5，副边电流表的读数为4安，则被测电路的电流是(。A、80安B、40安C、20安D、5安152.二极管两端加上正向电压时(。
A、一定导通B、超过死区电压才能导通C、超过0.7V才导通D、超过0.3V才导通153.电流表的分流器必须与表头(。
A、串联B、并联C、混联D、任意联接154.对于特别重要的工作场所，应采用独立电源对事故照明供电，事故照明宜采用(。A、白炽灯B、日光灯C、白炽灯或卤钨灯D、高压钠灯155.铝芯橡皮绝缘电线的型号为(。
A、BLVB、BXC、BLXD、BLVV156.铜芯聚氯乙烯绝缘平行软线的型号为(。
A、RVB、RVBC、RVVD、RVVB157.三相异步电动机引出线与电源常见的连接方式有(接法。
A、△形B、Y形C、△形和Y形D、YY形158.关于脚扣的使用，错误的说法是(。
A、水泥杆脚扣可用于木杆登高B、水泥杆脚扣可用于水泥杆登高C、杆脚扣可用于木杆登高D、木杆脚扣可用于水泥杆登高159.配电变压器高压侧额定电流为96.4A，应选用的高压熔丝规格为(。
A、75AB、100AC、150AD、200A160.常见的软磁材料有(。
A、硅钢片B、碳钢C、钴钢D、铝镍钴合金
二、判断题(第161题～第200题，每题0.5分，共20分。
161.(三芯电力电缆端终金属护层必须接地良好，塑料电缆每相铜屏蔽和钢铠应锡焊接地线。162.(电容器的容抗与交流电的频率成反比。163.(高压隔离开关可用来切合小电流电路。
164.(测寻电缆故障定点的方法，常用的有声测法和感应法两种。165.(按负荷发生的时间不同可分为高峰负荷和低谷负荷。
166.(常用的立杆方法有，起重机立杆，三脚架立杆，倒落式立杆和架脚立杆。
167.(正常情况下分支杆除承受直线杆所承受的荷重外，还要承受分支侧的荷重和拉力。
168.(动力和照明配电箱适用于额定电压为500V以下的供电系统，作为动力和照明设备配电和
andprojectshavesettledinShunqing.Third,strengthenprojectconstruction.Annualimplementationfocusproject39a,fixedassetsinvestmenttotalwillbreakthrough12billionyuan,createddistrictyilaihistoryhigh,Southdoordam,andfiveinshopoldcitytransformation,andYingChinaindustrialconcentrateddistrictconstruction,andcitymainroadconstruction,andNortheaststeamTradeCenter,andmodernfarmersindustryPark,andvocationaleducationcity,andlowrental,andalsoroomconstruction,andfeaturesblocksbuild,andfarmersmarkettransformation,and"ruralversion"Streettransformation,focusengineeringspeedupimplementation,effectivenessobviously.Expectedtobeachievedthisyear,area-wideGDP17billion
控制之用。
169.(电缆由线芯和绝缘层两部分组成。
170.(焊接接头根部间隙的作用是为了保证接头根部能焊透。171.(架设导线时，放线有拖放法和展放法两种放线方法。
172.(三相异步电动机和电力制动常用的方法有：反接制动、能耗制动、电容制动和再生发电制动。
173.(敷设电力电缆时应在终端头与接头附近留有备用长度。174.(填写操作票时，必须用钢笔或圆珠笔，字迹清楚无涂改。175.(电力电缆用于电力传输和分配。
176.(矩形母线应减少直角弯曲，弯曲处不得裂纹及显著的折皱。
177.(盘柜内的配线应采用截面不小于1.5平方毫米，工作电压不低于300伏的铜芯绝缘导线。178.(电路处于通路状态时，负载两端的电压等于电源电动势。
179.(架设导线时，导线接头处的机械强度，不应低于原导线强度的80%。
180.(接触器是一种适用于远距离频繁接通和切断交直流小容量电路的自动控制电器。181.(一般拉线与地面夹角在30°到50°之间。
182.(对电路中任一节点而言流入(或流出该节点电流的代数和恒等于零。183.(RLC串联电路的阻抗与电路频率成正比。
184.(晶体三极管输出特性分为：导通区、放大区和开关区。185.(电杆定位只能使用经纬仪测量法。
186.(操作人员发现电动机或电器有异常时，应立即停车修理，然后再报告值班电工。187.(直线杆位于线路直线段上，仅作支持导线、绝缘子和金具用。
188.(杆坑分为圆形坑和梯形坑，对于土质较好，电杆在10m以下挖圆形坑。189.(进行手工电弧焊操作时，操作者必须穿劳保，戴防护面罩和防护手套。190.(生产现场管理不属于车间生产管理的内容。
191.(电力网是电力系统的中间环节，它包括输配电线路不包括变配电所。192.(二极管的主要参数是最大整流电流和最高反向工作电压。193.(弧垂值的大小主要取决于当地的气候条件。194.(交流电的相位就是交流电的初相角。195.(双速异步电动机的接线方法有YY/△。
196.(开路时，电路中无电流，因此，电源两端没电压。
197.(紧线方法，一种是导线逐根均匀收紧，只一种是三线同时收或两线同时收紧。198.(电杆竖起后再组装横担，则应从电杆的最上端开始装。
199.(2个10欧电阻并联，再与一个5欧电阻串联，总电阻值为15欧。200.(接地体水平安装时，其埋设深度不应小于0.6米。
rojectwork,cadres,cadresselectionandotheraspectsofatotalof19,furtherdefinedthedirectionofrectification,enhancingthepertinenceandeffectivenessofdemocraticlife.Goodforthismeeting,werequestedtheStandingCommitteeofthemunicipalpartyCommittee,municipalSecretaryGeneralTngWenjin,theCityCommissionfordisciplineinspectionStandingCommitteeYngXu,JiangJixue,DeputyDirectorofthepersonneloffice,andotherleadingcomradespresentguidanceallowsustowarmapplausefortheirwelcomeandthanks!BelowIfirstDistrictCommitteememberofthe20XXteamannualdemocraticmeetingimplementationofthecorrectivemeasures,aswellasmemberoftheteamandofmyownreportguidelinesfortheimplementationoftheindependentCommissionagainstcorruptionstatementinvitedleadersandcomradescriticism.First,annualpartyonthe20XXteam,Memberofdemocraticlifeactionplanimplementationyear20XX,districtdemocraticmeetingamemberoftheteamon"studyandpracticethescientificOutlookondevelopment"theme,findaprojectsupportingstrongenough,theindustrywellenough,urbanconstructionmanagementlevelneedstobeimproved,livelihoodimprovementneedstobestrengthened,districtteamitself,suchasthefiveaspects.earof20XX,wefindouttheproblemsmentionedabove,basedonactualShunqingconstructionanddevelopment,conscientiouslysumupimprovements,achievingsignificantdevelopmentresultsandeffectivenessoftheirwork.(Ahighlighttheprojecthandle,maintainhighgrowthofinvestment.AdheretothestrategyasaFoundation,carryingoutprojectstopromoteincreasedstaminaimportant.Oneistoincreasetheintensityofprojectstowards.Activelyseeknationalandprovincialpolicysupport,superiorspecialtransferpayments,avarietyofadditionalincomewilltop700millionYuan,anumberofkeyinfrastructureprojects,livelihoodprojects,industrialprojectsintothecage.Second,increasingtheprojectattracts.Thisyearatotalof23signedamajorproject,ofwhich14billionproject,ChinaMetallurgicalgroup,vankegroup,Guangdonghengdagroup,TaiwanRuentexgroup,ontheRIgroup,ShenzhenKaisa,jifengagriculturalmachinery,Mercedes-Benz,Audi4Sstoreandotherlargeenterprises试卷编码：08TL-002
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