電氣儀表工試題

1、spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd inspecti on,safetypr oduction mont h, daysupervision of pr oduction safetyand theOlympic Games an d otherDelegates,staff:Hell o! inthe run-uptothe Spri ng Festival,we held onesession offourstaffrepresentatives Conference 2013 -w orkshop,fu

2、ll ba ckin 2012, carefula nalysis ofthe current situati on, discuss2013 devel opme nt pla ns.Here,onbe halfofmycompa ny2013 work re ports t o the GeneralAssembly,forconsideration.PillarI, 2012ba ckin 2012,XXpower companiesadhere to theparty's 17 greatspiritforguida nce, comprehensiv elyimplement

3、t he scientifi c concept of development, promoti ngcost-lea dershipstrategy,standards,focus on implementation, lea n manage ment,continuouslyimprove,smooth prese nt safetysituati on of e nterprisemanageme nt,business ma nagementa nd controlscientific and standardize d,and thede dicati on ofstaff,man

4、agea harmonious anddemocratic atmosphereofthegood situati on. Main i ndi cators area s follows: -the batter yindicat or: powerge nerationtotale d7.815bil lion kWh, bey ondthe a nnualbudget im plementati on capacity of315million k Wh, an increaseof757 million kWh.Salestotaled 7.425 billion k Wh, exce

5、edi ng sal es of330 million k Wh t he annua lExecutive budget,a n increase of729milli on k Wh. -Securitymeasures:unplanne d outages 2.5 times.No personalinjury a cci dent occurred,nomajora cci de ntand above,nomajorfireacci dentswithout environmental poll ution accide nts, safetyforthreeconsecutivey

6、earsto maintain stabil ity to good posture.Business fina ncialindi cators:total pr ofitsof255 million Yua n, beyond theannualbudgetof207 millionYuan,beyond the Datang companyindex41.89 millionYuan,an increaseof 1.76 millionYuan,FCM asse ssmentat gra de four.-Energy:powersupplystandardcoal com pletin

7、g 312.25 g /kWh,down0.1 g /k Wh; integrateda uxiliary power consumptionratioi n 5.12%,dow n 0.26%; polluta ntemissi ons performance grea tly reduce d compare d to lastye ar, carbon 0.09 g /kWh, sulfur dioxide0.104 g /kWh NOx0.512 g /kWh; dustrem ovalefficiencyof more t han 99.8%.-Relia bilityindex:

8、e quivale nt availabi lity factor in93.47%,i ncreased7.95%from ayearearlier.Equivalentforced outage rate0.08%, 0.16% reduction overt hesame perioda year earlier.Majorachi evements:first,we shoul dadheretothe two"managementsystem" basis, stre ngthe ningte chnol ogicalrese arch,strengthen hi

9、 ddenha zards controlandintri nsi csafetyEnterprise constructiontooknewste ps. -Thetwo "management system"forimprovement.Focus onpromoti ng the power ofthe companymanagement systemand theappli catio n and implementati on ofthe safety loop five-starmanagementsystem,improvethesafety manageme

10、 nt system, realizethe systemof safety control.Furtherregulatesecurity routines, safety supervi sion and managementnetworkr oletoplayto achieveclosed-l oop.Strengtheni ngthe supe rvisionand management of ha bitualvi olation of,strengthe ning t he safety supervisi on ofoutsour cing contra ctors.Carri

11、ed out in電氣儀表熱工專業(yè)試題及答案一 .填空題1. 儀表常用直流信號(hào)的優(yōu)點(diǎn)有（干擾少）、（對(duì)負(fù)載要求p 簡(jiǎn)單 p） 、（遠(yuǎn)距離傳送信息p） 。2. 儀表主要由（傳感器p） 、 （變換器p） 、 （顯示裝置p） 、 （傳輸通道）四部分，其中（傳感器p）是儀表的關(guān)鍵環(huán)節(jié)。3. 誤差的來(lái)源有（儀器裝置誤差p） 、 （環(huán)境誤差p） 、 （方法誤差）、 （p人員誤差p）四個(gè)方面。4. 誤差的分類有（系統(tǒng)誤差p） 、 （ p 隨機(jī)誤差p） 、 （粗大誤差）。5. 從干擾作用于儀表的形式上來(lái)分,可分為（p 橫向干擾 ）、（ p 縱向干擾p） 。6. 標(biāo) 準(zhǔn) 容 積 流 量 是 指 溫 度 在 是

12、指 溫 度 在 （ 20 。 Cp ） ， 壓 力 在 （1.01 M05Pa）的容積數(shù)；我們最常用的標(biāo)準(zhǔn)截流裝置為（孔板p）,ctivities,compre hensive andtamping SafetyFoundation .Troubleshooting,managementmechanism, givefull playtor ole oftechni calsupervisi on and real ization of troubleshooting,management,improved proce ss manageme nt.Thisyearcompletedt heb

13、oiler l owerhea derleakage ,boiler pre ssur e,a majorri sk manageme nt,com pleted29ofgreat risks and3 Generalpr oblem s ofgoverna nce.Completechemistrylabconstruction,thermalcontrol, andcomplete the boilerscale integratedmanagement, host shaftingvi bration of10 scientifica nd te chnol ogical proje c

14、ts,suchas.Completesupercritical 630MW on-line simulati on systemdevelopmentand application ofcirculatingwater M CC sta ndbypower transformation,the transformationofdesulfurizationwastew ater,the unitwater supplysystem ofcomprehensivetreatmentand discharge valve modificationofcoalmill5 key technologi

15、caltransformation projects,grouphealt h isimpr oved. -S cience a nd te chnology i nnovation i sfurtherDelegates,staff:Hell o! inthe run-uptothe Spri ng Festival,we held onesession offourstaffrepresentatives Conference 2013 -w orkshop,full ba ckin 2012, carefula nalysis ofthe current situation, discu

16、ss2013 devel opme nt plans.Here,onbe halfofmycompany2013 work re ports t o the GeneralAssembly,forconsideration.PillarI, 2012ba ckin 2012,XXpower companiesadhere to theparty's 17 greatspiritforguida nce, comprehensiv elyimplementt he scientifi c concept of development,promoti ngcost-lea derships

17、trategy,standards,focus on implementation, lean manage ment,continuouslyimprove,smooth present safety situati on of e nterprisemanageme nt,business managementa nd controlscientificandstandardize d,a ndthe de dicati on ofstaff,managea harmoni ous anddemocratic atmosphereofthegood situati on. Main i n

18、di cators area s follows: -the batter yindicat or: powerge nerationtotale d7.815bil lion kWh, bey ondthe a nnualbudgetim plementation capacity of315million k Wh, an increaseof757 million kWh.Salestotaled 7.425 billion k Wh, exceedi ng sal es of330 million k Wh t he annua lExecutive budget,a n increa

19、se of729milli on k Wh. -Se curitymeasures:unplannedoutages 2.5 times.No personalinjury acci dent occurred,nomajora cci de ntand above,nomajorfireacci dentswithout environmental poll ution ac cidents, safetyforthreeconsecutiveyearsto maintain stabil ity to good posture.Business fina ncialindi cators:

20、total pr ofitsof255 million Yuan, beyond theannualbudgetof207 millionYuan,beyond theDatang companyindex41.89 millionYuan,an increaseof 1.76 millionYuan,FCM asse ssmentat gra de four.-Energy:powersupplystandardcoal com pleting 312.25 g /kWh,down0.1 g /k Wh; integrateda uxiliary powerconsumptionratioi

21、n 5.12%,dow n 0.26%; polluta ntemissi ons performance grea tly reduce d compare d to lastye ar, carbon 0.09 g /kWh, sulfur dioxide0.104 g /kWh NOx0.512 g/kWh; dustrem ovalefficiencyof more t han 99.8%.-Relia bilityindex: e quivale nt availabi lity factor in93.47%,i ncreased7.95%from ayearearlier.Equ

22、ivalentforced outage rate0.08%, 0.16% reduction overt hesame perioda year earlier.Majorachievements:first,weshoul dadheretothe two"manage mentsystem" basis, strengthe ningte chnol ogicalrese arch,strengthen hi ddenha zards controlandintri nsi csafetyEnterprise constructiontooknewsteps.-The

23、two "management system"forimprovement.Focus onpromoting the power ofthe companymanagementsystemand theappli cationand implementation ofthe safety loop five-starmanagementsystem,improvethesafety manageme ntsystem, realizethe systemof safety control.Furtherregulatesecurity routi nes,safetysu

24、pervi sion and managementnetworkr oletoplayto achieveclosed-loop.Strengtheni ngthe supe rvisionand management of ha bitualvi olationof, strengtheningthe safety supervisi on ofoutsour cing contractors.Carried out in取壓方式為（角接取壓）、 （法蘭取壓）。7. 儀表調(diào)校的主要內(nèi)容（調(diào)零點(diǎn)） 、 （調(diào)量程）、 （調(diào)線性p）。8. 測(cè)量過(guò)程有三要素：一是 （測(cè)量單位）、 二是 （測(cè)量方法）

25、、 三是 （測(cè)量工具） 。9. 按參數(shù)種類不同，熱工儀表可為（溫度） 、 （壓力） 、 （流量） 、 （料位） 、（成分分析）及（機(jī)械量）等儀表。10. 根據(jù)分類的依據(jù)不同，測(cè)量方法有（直接測(cè)量與間接測(cè)量）、 （接觸測(cè)量與非接觸測(cè)量）、 （靜態(tài)測(cè)量與動(dòng)態(tài)測(cè)量）。11. 屏蔽分為（磁場(chǎng)屏蔽）和（電場(chǎng)屏蔽）兩種。12. 在管道中安裝孔板時(shí),如果將方向裝反指示會(huì)（變?。?。13. 單位時(shí)間內(nèi)流過(guò)管道截面的流體數(shù)量，稱為 （流量） ； 流量分為 （瞬時(shí)流量）和（累積流量）又可分為（體積流量）和（質(zhì)量流量）。1.1. 三相電動(dòng)勢(shì)或電流的幅值出現(xiàn)的次序?yàn)橄嘈?，相序?yàn)?A-B-C,通常稱為（正序或順序）；相序

26、為C-B-A,通常稱為（負(fù)序或逆序）；spring a nda utumn ofsecurity inspections,floodcontrol and inspecti on,safetyprh, daysupervision of production safetyand theOlympic Games andotherDelegates,staff:Hell o! inthe run-uptot million k Wh, an increaseof757 million kWh.I- . - I Iefficiencyof more than 99.8%.he Spri n-Rel

27、ia bilityindex: ei ng Festival,we held onesession offourstaffrepresentatives ConSalestotaled 7.425 billion k Wh, exceedi ng sal es of330 million kncreased7.95%from ayearearquivale nt availabi lity factor in93.47%,ioduction montConference 2013-w orkshop,full ba ckinlion k Wh t he annua lExecutive bud

28、get,aEquivalentforcedearearlier.ckin 2012, carefula nalysis ofthe current situati on, discuss2013 devel opme nt pla ns. get,a n increase of729milli on k Wh. -Securitymeasures:unplanne d outages 2.5 times. - -一.一I I-outage rate0.08%, 0.16% reductiHere,onbe halfofmycompa ny2013 work re ports t o the G

29、eneralAssembly,forconsiNo personalinjury a cci dent occurred,nomajora cci de ntand above,nomajor-II I- IL I - - _ -I -I Majorachi evements:first,weshoul dadheretothe two"managementsystem" basis, strederation.PillarI, 2012ba ckin 2012,XXfireacci dentswithout environmental poll utngthe ningt

30、e chnol ogicalrese arch,strengthen hiddenha zardsrgo maintain stabiluida nce, comprehensiv elyimplementt he scientifi c concept of development, promoti ngcost-lea dershipstrategy,standards,focus on implemeity to good posture.Business fina ncialindi cators:total pr ofitsof255 million Yua n, beyond th

31、eannualbudgetof207 millionYua.IL. L .L 一_. II 一.11 一一 . 一 -I 一 .-uctiontooknewste ps. -Thetwo "managementation, lea n manage ment,continuouslyimprove,smooth present safety situati on of e nterprisemanageme nt,business ma nagementa nd controlscientific and standardize d,and thede dicati on ofsta

32、ff,managea harmonious anddemocratic atmosphereofthegood situati on. Main i ndi cators area s follows: -the batter yindicat or: powerge nerationtotale d7.815bil lion kWh, bey ondthe a nnualbudgetim plementati on capacity of315n,beyond the Datang companyindex41.89 millionYuan,an increaseof 1.76 millio

33、nYuan,FCM asse ssmentat gra de four.-Energy:powersupplystandardcoal com pleting 312.25 g /kWh,down0.1 g /k Wh; integrateda uxiliary power consumptionratioi n 5.12%,dow n 0.26%; polluta ntemissi ons performance grea tly reduce d compare d to lastye ar, carbon 0.09 g /kWh, sulfur dioxide0.104 g /kWh N

34、Ox0.512 g /kWh; dustrem ovalppli cationand implementation ofthe safety loo pfive-star managementsystem,improvethesafety manageme nt system, realizethe systemof safety control.Furtherregulatesecurity routines,safetysupervi sion and managementnetworkr oletoplayto achieveclosed-l oop.Strengtheni ngthe

35、supe rvisionand management of ha bitualvi olationof, strengthening t he safety supervisi on ofoutsour cing contra ctors.Carried out in15. 執(zhí)行器按能源不同，可分為（氣動(dòng)）、 （電動(dòng)） 、和（液動(dòng)）三種；執(zhí)行器應(yīng) （順著） 介質(zhì)的流動(dòng)方向安裝，檢查的方法是看閥體上的（箭頭）是否與介質(zhì)的流向一致。16. 物位檢測(cè)包括（p料位p）檢測(cè)和（液位p）檢測(cè)。17. 控制方式一般分為（手動(dòng)）和（自動(dòng)）兩大類，如果糾正系統(tǒng)的偏差是由人直接操作，這種回路稱為（手動(dòng)控制系統(tǒng)）；

36、如果系統(tǒng)具有反饋通道組成的閉環(huán)回路并能自動(dòng)糾正偏差，這種系統(tǒng)稱為（自動(dòng)控制系統(tǒng)）。18. 電路一般由（電源）、 （負(fù)載） 、 （導(dǎo)線） 、 （開(kāi)關(guān)） 。若電路中的某兩點(diǎn)間電阻為零，則這兩點(diǎn)叫做（短路）。若電路中的某兩點(diǎn)間電阻為無(wú)窮大，則這兩點(diǎn)就叫做（開(kāi)路）。各種電氣設(shè)備運(yùn)行在額定狀態(tài)下，叫做（滿載）；超過(guò)額定值工作時(shí)，則叫做（過(guò)載）。19. 儀表的校驗(yàn)一般都采用被校表與標(biāo)準(zhǔn)表的示值直接比較的方法，稱為（直接比較法），標(biāo)準(zhǔn)表的測(cè)量上限不應(yīng)超過(guò)被校表上限的（ 25% ） ；量程調(diào)整應(yīng)包括（下限調(diào)整）和（上限調(diào)整）兩個(gè)方面。20. 取壓口一般是（垂直）于容器或管道內(nèi)壁面的圓形開(kāi)孔；導(dǎo)壓信ctivit

37、ies,comprehensive andtamping SafetyFoundation .Troubleshooting,managementmechanism, givefull playtorole oftechni calsupervisi on and real ization of troubleshooting,management,improved proce ss manageme nt.Thisyearcompletedtheboiler lowerhea derleakage ,boiler pre ssur e,a majorri sk manageme nt,com

38、 pleted29ofgreat risks and3 Generalpr oblem s ofgoverna nce.Completechemistrylabconstruction,thermalcontrol, andcomplete the boilerscale integratedmanagement, host shaftingvi bration of10 scientifica nd te chnol ogical proje cts,suchas.Completesupercritical 630MW on-line simulati on systemdevelopmen

39、tand application ofcirculatingwater M CC sta ndbypower transformation,the transformationofdesulfurizationwastew ater,the unitwater supplysystem ofcomprehensivetreatmentand discharge valve modificationofcoalmill5 key technologicaltransformation projects,grouphealth isimpr oved.-S cience a nd te chnol

40、ogy innovation i sfurtherspring a nda utumn ofsecurity inspecti ons,floodcontrol a nd inspecti on,safetypr oduction mont h, daysupervision of pr oduction safetyand theOlympic Games an d otherDelegates,staff:Hello! inthe run-uptothe Spri ng Festival,weheld onesession offourstaffrepresentatives Confer

41、ence 2013 -w orkshop,full ba ckin 2012, carefula nalysis ofthe current situation, discuss2013 devel opment plans.Here,onbe halfofmycompany2013 work reports t o theGeneralAssembly,forconsideration.PillarI, 2012ba ckin 2012,XXpower companiesadhere to theparty's 17 greatspiritforguida nce, comprehe

42、nsiv elyimplementt he scientific concept of development, promoti ngcost-lea dershipstrategy,standards,focus on implementation, lean manage ment,continuouslyimprove,smooth present safety situati on of e nterprisemanageme nt,business ma nagementa nd controlscientific and standardize d,a ndthe de dicat

43、ion ofstaff,managea harmonious anddemocratic atmosphereofthegood situati on. Main i ndi cators area s follows: -the batter yindicat or: powerge nerationtotale d7.815bil lion kWh, beyondthe annualbudgetim plementati on capacity of315million kWh, an increaseof757 million kWh.Salestotaled 7.425billion

44、k Wh, exceedi ng sal es of330 million kWh t he annua lExecutive budget,a n increase of729milli on k Wh. -Securitymeasures:unplanne d outages 2.5 times.No personalinjury acci dent occurred,nomajoracci de ntand above,nomajorfireacci dentswithout environmental poll ution ac cidents, safetyforthreeconse

45、cutiveyearsto maintain stability to goodposture.Business financialindi cators:total profitsof255 million Yua n, beyond theannualbudgetof207 millionYuan,beyond theDatangcompanyindex41.89 millionYuan,an increaseof 1.76 millionYuan,FCMasse ssmentat grade four.-Energy:powersupplystandardcoal com pleting

46、 312.25 g/kWh,down0.1 g/k Wh; integrateda uxiliary power consumptionratioin 5.12%,down 0.26%; pollutantemissi ons performance grea tly reduce d compare d to lastye ar, carbon 0.09 g/kWh, sulfur dioxide0.104 g /kWh NOx0.512 g /kWh; dustrem ovalefficiencyof more t han 99.8%.-Relia bilityindex: e quiva

47、le nt availabi lity factor in93.47%,increased7.95%from ayearearlier.Equivalentforced outage rate0.08%, 0.16% reduction overt hesame perioda year earlier.Majorachi evements:first,we shoul dadheretothe two"managementsystem" basis, stre ngthe ningte chnol ogicalrese arch,strengthen hiddenha z

48、ards controlandintri nsi csafetyEnterprise constructiontooknewste ps. -Thetwo "management system"forimprovement.Focus onpromoti ng the power ofthe companymanagementsystemand theappli cationand implementation ofthe safety loop five-starmanagementsystem,improvethesafety management system, re

49、alizethe systemof safety control.Furtherregulatesecurity routines,safetysupervi sion and managementnetworkr oletoplayto achieveclosed-l oop.Strengtheni ngthe supe rvisionand management of ha bitualvi olationof, strengthening the safety supervisi on ofoutsourcing contractors.Carriedout in號(hào)管路長(zhǎng)度不超過(guò)（60）

50、 m,為防止高溫介質(zhì)冷卻時(shí)進(jìn)入壓力表，導(dǎo)壓管長(zhǎng)度也不宜小于（3） m。21. 節(jié)流式流量計(jì)由（節(jié)流裝置）、 （壓差信號(hào)管道）、 （差壓計(jì)）組成。節(jié)流裝置是儀表的（檢測(cè)元件），其作用是將流體流量信號(hào)轉(zhuǎn)變?yōu)橄鄳?yīng)的（壓差信號(hào)）， （壓差信號(hào)管道）是信號(hào)的傳輸部件，（差壓計(jì)）是儀表的顯示部分。22. 我們常用的溫度一次元件的安裝方式有（螺紋連接）、 （法蘭固定）。二 .問(wèn)答題1. 什么叫儀表的靈敏度、回差、分辨率？?jī)x表的靈敏度是指其輸出信號(hào)的變化值與對(duì)應(yīng)的輸入信號(hào)的變化值的比值。 被測(cè)量分別按增加和減少兩個(gè)方向緩慢變化，使儀表指示同一示值的兩個(gè)輸入量之差稱為該儀表在該點(diǎn)的回差。分辨率反映儀表對(duì)輸入量微

51、小變化的反應(yīng)能力。2. 熱電阻由幾部分組成?引線為什么采用三線制?由熱電阻體、絕緣套管、保護(hù)套管及接線盒組成。采用三線制的目的ctivities,compre hensive andtamping SafetyFoundation .Troubleshooting,managementmechanism, givefull playtor ole oftechni calsupervisi on and real ization of troubleshooting,management,improved proce ss manageme nt.Thisyearcompletedt hebo

52、iler l owerhea derleakage ,boiler pre ssur e,a majorri sk manageme nt,com pleted29ofgreat risks and3 Generalpr oblem s ofgoverna nce.Completechemistrylabconstruction,thermalcontrol, andcomplete the boilerscale integratedmanagement, host shaftingvi bration of10 scientifica nd te chnol ogical proje ct

53、s,suchas.Completesupercritical 630MW on-line simulati on systemdevelopmentand application ofcirculatingwater M CC sta ndbypower transformation,the transformationofdesulfurizationwastew ater,the unitwater supplysystem ofcomprehensivetreatmentand discharge valve modificationofcoalmill5 key technologic

54、altransformation projects,grouphealt h isimpr oved. -S cience a nd te chnology i nnovation i sfurtherDelegates,staff:Hell o! inthe run-uptothe Spri ng Festival,we held onesession offourstaffrepresentatives Conference 2013-w orkshop,full ba ckin 2012, carefula nalysis ofthe current situati on, discus

55、s2013 devel opme nt pla ns.Here,onbe halfofmycompa ny2013 work re ports t o the GeneralAssembly,forconsideration.PillarI, 2012ba ckin 2012,XXpower companiesadhere to theparty's 17 greatspiritforguida nce, comprehensiv elyimplementt he scientifi c concept of development, promoti ngcost-lea dershi

56、pstrategy,standards,focus on implementation, lea n manage ment,continuouslyimprove,smooth present safety situati on of e nterprisemanageme nt,business ma nagementa nd controlscientific and standardize d,and thede dicati on ofstaff,managea harmonious anddemocratic atmosphereofthegood situati on. Main

57、 i ndi cators area s follows: -the batter yindicat or: powerge nerationtotale d7.815bil lion kWh, bey ondthe a nnualbudgetim plementati on capacity of315million k Wh, an increaseof757 million kWh.Salestotaled 7.425 billion k Wh, exceedi ng sal es of330 million k Wh t he annua lExecutive budget,a n i

58、ncrease of729milli on k Wh. -Se curitymeasures:unplanne d outages 2.5 times.No personalinjury a cci dent occurred,nomajora cci de ntand above,nomajorfireacci dentswithout environmental poll ution ac cidents, safetyforthreeconsecutiveyearsto maintain stabil ity to good posture.Business fina ncialindi cators:total pr ofits