2025年事業(yè)單位工勤技能-吉林-吉林信號(hào)工-機(jī)車信號(hào)設(shè)備維修二級(jí)（技師）歷年參考題庫含答案解析(5套)2025年事業(yè)單位工勤技能-吉林-吉林信號(hào)工-機(jī)車信號(hào)設(shè)備維修二級(jí)（技師）歷年參考題庫含答案解析(篇1)【題干1】機(jī)車信號(hào)設(shè)備中，用于檢測(cè)軌道電路斷路的專用測(cè)試儀是？【選項(xiàng)】A.信號(hào)燈測(cè)試儀B.軌道電路斷路檢測(cè)儀C.信號(hào)機(jī)校驗(yàn)儀D.電壓表【參考答案】B【詳細(xì)解析】軌道電路斷路檢測(cè)儀是專門用于檢測(cè)軌道電路是否斷開的設(shè)備，其工作原理是通過測(cè)量軌道回路的電阻值判斷是否斷路。其他選項(xiàng)中，信號(hào)燈測(cè)試儀用于檢測(cè)信號(hào)燈發(fā)光性能，信號(hào)機(jī)校驗(yàn)儀用于校準(zhǔn)信號(hào)機(jī)的顯示狀態(tài)，電壓表僅用于測(cè)量電壓值，均不符合題干要求?！绢}干2】在檢修機(jī)車信號(hào)設(shè)備時(shí)，若發(fā)現(xiàn)信號(hào)燈紅光顯示異常，應(yīng)首先檢查的部件是？【選項(xiàng)】A.燈泡供電電壓B.信號(hào)燈驅(qū)動(dòng)電路C.信號(hào)燈限流電阻D.軌道電路狀態(tài)【參考答案】A【詳細(xì)解析】信號(hào)燈紅光異常通常與供電電壓直接相關(guān)。需優(yōu)先檢查燈泡供電電壓是否正常，若電壓不足會(huì)導(dǎo)致發(fā)光異常。驅(qū)動(dòng)電路故障可能導(dǎo)致電流異常，但需排除電壓?jiǎn)栴}后才能進(jìn)一步排查。限流電阻和軌道電路屬于后續(xù)檢查環(huán)節(jié)，非第一優(yōu)先級(jí)?！绢}干3】機(jī)車信號(hào)系統(tǒng)中，用于傳遞速度信息的編碼方式是？【選項(xiàng)】A.阻值編碼B.頻率編碼C.脈沖編碼D.電流編碼【參考答案】B【詳細(xì)解析】機(jī)車信號(hào)系統(tǒng)的速度編碼通常采用頻率編碼（如ATP系統(tǒng)中的連續(xù)速度發(fā)送器），通過改變發(fā)送頻率表示不同速度等級(jí)。阻值編碼多用于模擬信號(hào)傳輸，脈沖編碼用于時(shí)間間隔調(diào)制，電流編碼用于直流信號(hào)傳輸，均不符合現(xiàn)代機(jī)車信號(hào)系統(tǒng)的技術(shù)標(biāo)準(zhǔn)。【題干4】信號(hào)機(jī)故障排除中，若接收端無顯示但發(fā)送端正常，應(yīng)優(yōu)先檢查的部件是？【選項(xiàng)】A.信號(hào)機(jī)點(diǎn)燈電路B.接收設(shè)備電源C.軌道電路絕緣D.傳輸電纜【參考答案】D【詳細(xì)解析】接收端無顯示但發(fā)送端正常，表明傳輸通道存在中斷或信號(hào)衰減。優(yōu)先檢查傳輸電纜是否破損或接觸不良，再逐步排查接收設(shè)備電源、軌道電路絕緣等。信號(hào)機(jī)點(diǎn)燈電路故障通常會(huì)導(dǎo)致發(fā)送端異常，而非接收端無顯示?！绢}干5】機(jī)車信號(hào)設(shè)備中，用于校準(zhǔn)自動(dòng)閉塞區(qū)段信號(hào)機(jī)顯示時(shí)間的設(shè)備是？【選項(xiàng)】A.信號(hào)燈測(cè)試儀B.區(qū)段校準(zhǔn)儀C.電壓表D.軌道電路斷路檢測(cè)儀【參考答案】B【詳細(xì)解析】區(qū)段校準(zhǔn)儀是專門用于校準(zhǔn)自動(dòng)閉塞區(qū)段信號(hào)機(jī)顯示時(shí)間的設(shè)備，通過調(diào)整發(fā)送器的脈沖間隔實(shí)現(xiàn)時(shí)間校準(zhǔn)。信號(hào)燈測(cè)試儀用于檢測(cè)發(fā)光性能，電壓表用于測(cè)量電壓，軌道電路斷路檢測(cè)儀用于檢測(cè)斷路故障，均不涉及時(shí)間校準(zhǔn)功能?！绢}干6】在檢修軌道電路時(shí)，若發(fā)現(xiàn)軌道絕緣不良導(dǎo)致信號(hào)設(shè)備誤動(dòng)作，應(yīng)首先采取的防護(hù)措施是？【選項(xiàng)】A.關(guān)閉信號(hào)電源B.恢復(fù)軌道電路C.使用絕緣墊D.斷開軌道電路【參考答案】A【詳細(xì)解析】軌道絕緣不良可能引發(fā)短路或接地故障，直接恢復(fù)軌道電路可能擴(kuò)大故障范圍。正確操作應(yīng)先關(guān)閉信號(hào)電源，確保安全后再進(jìn)行檢修。使用絕緣墊雖能隔離部分風(fēng)險(xiǎn)，但無法完全避免誤動(dòng)作，且操作流程不規(guī)范?！绢}干7】機(jī)車信號(hào)設(shè)備中，用于檢測(cè)列車占用軌道的傳感器是？【選項(xiàng)】A.軌道電路檢測(cè)器B.速度傳感器C.信號(hào)燈檢測(cè)器D.車輪傳感器【參考答案】A【詳細(xì)解析】軌道電路檢測(cè)器通過檢測(cè)軌道回路的完整性判斷列車占用狀態(tài)，是機(jī)車信號(hào)系統(tǒng)的核心傳感器。速度傳感器用于測(cè)量列車運(yùn)行速度，信號(hào)燈檢測(cè)器用于監(jiān)測(cè)信號(hào)機(jī)狀態(tài)，車輪傳感器多用于轉(zhuǎn)向架定位，均不直接檢測(cè)列車占用?！绢}干8】在檢修信號(hào)燈驅(qū)動(dòng)電路時(shí)，若發(fā)現(xiàn)驅(qū)動(dòng)電流異常，應(yīng)首先檢查的元件是？【選項(xiàng)】A.三極管B.電阻C.燈泡D.電源模塊【參考答案】D【詳細(xì)解析】驅(qū)動(dòng)電流異?？赡苡呻娫茨K輸出電壓波動(dòng)引起，需優(yōu)先檢查電源模塊是否正常。若電源正常，再依次排查三極管（控制電流）、電阻（限流保護(hù)）和燈泡（負(fù)載匹配）。直接檢查燈泡或三極管可能遺漏電源問題?！绢}干9】機(jī)車信號(hào)設(shè)備中，用于生成連續(xù)速度發(fā)送器的編碼信號(hào)的芯片是？【選項(xiàng)】A.555定時(shí)器芯片B.8051單片機(jī)C.74LS系列邏輯芯片D.信號(hào)編碼器芯片【參考答案】B【詳細(xì)解析】8051單片機(jī)是典型的微控制器，廣泛應(yīng)用于生成連續(xù)速度發(fā)送器的編碼信號(hào)（如ATP系統(tǒng)的VBC信號(hào)）。555定時(shí)器芯片用于生成脈沖信號(hào)，74LS系列邏輯芯片用于組合邏輯電路，信號(hào)編碼器芯片多用于解碼而非生成編碼。【題干10】在檢修自動(dòng)閉塞系統(tǒng)時(shí)，若列車未收到鄰區(qū)信號(hào)機(jī)顯示，但設(shè)備無報(bào)警，應(yīng)首先檢查的部件是？【選項(xiàng)】A.鄰區(qū)信號(hào)機(jī)B.鄰區(qū)軌道電路C.本站信號(hào)機(jī)接收設(shè)備D.傳輸電纜【參考答案】D【詳細(xì)解析】無報(bào)警但鄰區(qū)信號(hào)未接收，表明傳輸通道存在信號(hào)衰減或中斷。優(yōu)先檢查傳輸電纜是否破損或接觸不良，再排查鄰區(qū)信號(hào)機(jī)狀態(tài)、軌道電路絕緣及接收設(shè)備功能。本站信號(hào)機(jī)接收設(shè)備故障通常會(huì)導(dǎo)致本站信號(hào)異常，而非鄰區(qū)信號(hào)丟失。【題干11】機(jī)車信號(hào)設(shè)備中，用于校準(zhǔn)信號(hào)發(fā)送器頻率的儀器是？【選項(xiàng)】A.頻率計(jì)B.信號(hào)發(fā)生器C.電壓表D.信號(hào)校準(zhǔn)儀【參考答案】D【詳細(xì)解析】信號(hào)校準(zhǔn)儀是專門用于校準(zhǔn)信號(hào)發(fā)送器頻率和幅度的設(shè)備，可精確調(diào)節(jié)發(fā)送器輸出參數(shù)。頻率計(jì)用于測(cè)量信號(hào)頻率，信號(hào)發(fā)生器用于生成測(cè)試信號(hào)，電壓表僅測(cè)量電壓值，均無法完成校準(zhǔn)功能?！绢}干12】在檢修信號(hào)機(jī)點(diǎn)燈電路時(shí)，若信號(hào)燈頻繁閃爍，應(yīng)首先檢查的元件是？【選項(xiàng)】A.點(diǎn)燈繼電器B.燈泡C.限流電阻D.電源保險(xiǎn)絲【參考答案】A【詳細(xì)解析】信號(hào)燈頻繁閃爍通常由點(diǎn)燈繼電器觸點(diǎn)接觸不良或線圈損壞引起，導(dǎo)致通斷周期異常。檢查繼電器觸點(diǎn)氧化、污垢或線圈電阻是否正常。若繼電器正常，再排查燈泡、限流電阻（阻值異常）或電源保險(xiǎn)絲（熔斷導(dǎo)致間歇供電）?！绢}干13】機(jī)車信號(hào)設(shè)備中，用于檢測(cè)列車位置的軌道電路類型是？【選項(xiàng)】A.軌道電路B.軌道絕緣節(jié)C.軌道電路檢測(cè)器D.軌道電路電源【參考答案】A【詳細(xì)解析】軌道電路通過檢測(cè)列車對(duì)電路的短路效應(yīng)判斷位置，分為連續(xù)式和中斷式兩種。軌道絕緣節(jié)是物理隔離點(diǎn)，軌道電路檢測(cè)器是傳感器組件，軌道電路電源是供電單元，均非檢測(cè)列車位置的電路類型本身?！绢}干14】在檢修信號(hào)機(jī)接收設(shè)備時(shí)，若接收端顯示異常但發(fā)送端正常，應(yīng)首先檢查的部件是？【選項(xiàng)】A.接收放大器B.傳輸電纜C.軌道電路D.電源模塊【參考答案】B【詳細(xì)解析】接收端顯示異常但發(fā)送端正常，表明信號(hào)傳輸通道存在問題。優(yōu)先檢查傳輸電纜是否破損、絕緣不良或連接松動(dòng)，再排查接收設(shè)備內(nèi)部電路（如放大器、濾波器）及軌道電路狀態(tài)。電源模塊故障通常會(huì)導(dǎo)致接收設(shè)備整體無響應(yīng)?！绢}干15】機(jī)車信號(hào)設(shè)備中，用于生成連續(xù)速度發(fā)送器的脈沖間隔的元件是？【選項(xiàng)】A.555定時(shí)器B.8051單片機(jī)C.74LS160計(jì)數(shù)器D.信號(hào)編碼器【參考答案】C【詳細(xì)解析】74LS160計(jì)數(shù)器用于生成脈沖間隔（如ATP系統(tǒng)的連續(xù)速度發(fā)送器需周期性脈沖），配合譯碼電路輸出不同速度等級(jí)。555定時(shí)器用于生成固定頻率脈沖，8051單片機(jī)用于控制整體邏輯，信號(hào)編碼器用于解碼而非生成脈沖間隔?！绢}干16】在檢修信號(hào)燈驅(qū)動(dòng)電路時(shí)，若驅(qū)動(dòng)電壓正常但信號(hào)燈不亮，應(yīng)首先檢查的元件是？【選項(xiàng)】A.三極管B.燈泡C.限流電阻D.電源保險(xiǎn)絲【參考答案】B【詳細(xì)解析】驅(qū)動(dòng)電壓正常但信號(hào)燈不亮，需優(yōu)先檢查燈泡是否損壞（如燈絲斷裂、表面氧化）。若燈泡正常，再排查三極管（是否飽和導(dǎo)通）、限流電阻（阻值是否過小導(dǎo)致燒毀）或電源保險(xiǎn)絲（是否熔斷導(dǎo)致缺相）?！绢}干17】機(jī)車信號(hào)設(shè)備中，用于校準(zhǔn)自動(dòng)閉塞區(qū)段長(zhǎng)度的儀器是？【選項(xiàng)】A.區(qū)段校準(zhǔn)儀B.信號(hào)發(fā)生器C.頻率計(jì)D.電壓表【參考答案】A【詳細(xì)解析】區(qū)段校準(zhǔn)儀通過調(diào)整發(fā)送器脈沖數(shù)量或間隔時(shí)間，校準(zhǔn)自動(dòng)閉塞區(qū)段的長(zhǎng)度（如固定區(qū)段長(zhǎng)度或移動(dòng)閉塞區(qū)段）。信號(hào)發(fā)生器用于生成測(cè)試信號(hào)，頻率計(jì)測(cè)量頻率，電壓表測(cè)量電壓，均不涉及長(zhǎng)度校準(zhǔn)?！绢}干18】在檢修軌道電路時(shí)，若發(fā)現(xiàn)軌道電路絕緣不良導(dǎo)致信號(hào)設(shè)備誤報(bào)警，應(yīng)首先采取的防護(hù)措施是？【選項(xiàng)】A.關(guān)閉信號(hào)電源B.恢復(fù)軌道電路C.使用絕緣墊D.斷開軌道電路【參考答案】A【詳細(xì)解析】軌道絕緣不良可能引發(fā)短路或接地故障，直接恢復(fù)軌道電路可能擴(kuò)大故障范圍。正確操作應(yīng)先關(guān)閉信號(hào)電源，確保安全后再進(jìn)行檢修。使用絕緣墊雖能隔離部分風(fēng)險(xiǎn)，但無法完全避免誤報(bào)警，且操作流程不規(guī)范?！绢}干19】機(jī)車信號(hào)設(shè)備中，用于檢測(cè)信號(hào)發(fā)送器輸出波形的儀器是？【選項(xiàng)】A.示波器B.頻率計(jì)C.電壓表D.信號(hào)校準(zhǔn)儀【參考答案】A【詳細(xì)解析】示波器用于直觀觀察信號(hào)發(fā)送器的輸出波形（如脈沖幅度、頻率、占空比），便于診斷信號(hào)畸變或參數(shù)異常。頻率計(jì)測(cè)量頻率，電壓表測(cè)量電壓，信號(hào)校準(zhǔn)儀用于校準(zhǔn)而非檢測(cè)波形?！绢}干20】在檢修信號(hào)機(jī)接收設(shè)備時(shí)，若接收端始終無顯示但設(shè)備無報(bào)警，應(yīng)首先檢查的部件是？【選項(xiàng)】A.接收放大器B.傳輸電纜C.軌道電路D.電源模塊【參考答案】D【詳細(xì)解析】接收端始終無顯示但設(shè)備無報(bào)警，表明接收設(shè)備可能因電源異常無法啟動(dòng)。優(yōu)先檢查電源模塊是否正常供電（如電壓、電流是否符合標(biāo)準(zhǔn)），再排查傳輸電纜、軌道電路及接收設(shè)備內(nèi)部電路。若電源正常，再逐步排查其他部件。2025年事業(yè)單位工勤技能-吉林-吉林信號(hào)工-機(jī)車信號(hào)設(shè)備維修二級(jí)（技師）歷年參考題庫含答案解析(篇2)【題干1】軌道電路絕緣節(jié)失效會(huì)導(dǎo)致信號(hào)機(jī)顯示異常，若采用分段檢修法，應(yīng)優(yōu)先檢查哪部分設(shè)備？【選項(xiàng)】A.軌道電路區(qū)段終端B.道岔軌道電路C.軌道電路絕緣節(jié)D.信號(hào)機(jī)電源【參考答案】C【詳細(xì)解析】軌道電路絕緣節(jié)失效會(huì)直接導(dǎo)致相鄰區(qū)段電氣隔離失效，引發(fā)信號(hào)顯示錯(cuò)誤。分段檢修法需從絕緣節(jié)開始排查，因其直接影響區(qū)段間電壓分配，優(yōu)先檢查絕緣節(jié)可快速定位故障源，避免盲目測(cè)試其他設(shè)備。【題干2】機(jī)車信號(hào)設(shè)備中，ATP（自動(dòng)列車防護(hù)）系統(tǒng)對(duì)速度超限的判定依據(jù)是？【選項(xiàng)】A.超過設(shè)計(jì)最高速度10%B.超過設(shè)計(jì)最高速度15%C.超過設(shè)計(jì)最高速度20%D.超過設(shè)計(jì)最高速度25%【參考答案】B【詳細(xì)解析】ATP系統(tǒng)遵循《鐵路技術(shù)管理規(guī)程》規(guī)定，將速度超限定義為超過設(shè)計(jì)最高速度的15%。此閾值基于歷史事故數(shù)據(jù)和設(shè)備冗余設(shè)計(jì)，確保在突發(fā)情況下仍有安全余量，避免誤觸發(fā)防護(hù)機(jī)制?！绢}干3】軌道電路道岔段絕緣節(jié)安裝間距標(biāo)準(zhǔn)為多少毫米？【選項(xiàng)】A.500±10B.600±15C.700±20D.800±25【參考答案】C【詳細(xì)解析】《鐵路信號(hào)設(shè)計(jì)規(guī)范》明確道岔段絕緣節(jié)間距應(yīng)為700±20mm，此標(biāo)準(zhǔn)綜合考慮了道岔轉(zhuǎn)換時(shí)間和軌道電路電阻匹配需求。偏差過大會(huì)導(dǎo)致分路不良，過小則易引發(fā)短路，需嚴(yán)格按此公差范圍安裝?！绢}干4】ZPW-2000A軌道電路匹配電容的典型容量值是多少微法？【選項(xiàng)】A.0.47B.1.0C.2.2D.4.7【參考答案】B【詳細(xì)解析】ZPW-2000A系統(tǒng)采用1.0μF電容作為匹配元件，通過容值分壓實(shí)現(xiàn)軌道電路阻抗匹配，確保發(fā)送器輸出電壓穩(wěn)定。容量過小會(huì)導(dǎo)致分壓不足，過大則引發(fā)信號(hào)弱化，需嚴(yán)格按設(shè)計(jì)參數(shù)更換?！绢}干5】信號(hào)燈燈泡亮度不足可能由哪些原因引起？（多選）【選項(xiàng)】A.燈泡老化B.燈絲電壓過低C.燈座接觸不良D.環(huán)境溫度過高【參考答案】ABCD【詳細(xì)解析】亮度不足常見于燈泡老化（A）、電壓不足（B，影響發(fā)光效率）、接觸不良（C，導(dǎo)致局部放電）及高溫（D，加速燈絲蒸發(fā)）。需依次檢測(cè)燈泡電阻、電源電壓、連接狀態(tài)及環(huán)境溫濕度，排除所有可能因素?！绢}干6】軌道電路道岔定位失效，應(yīng)首先檢查哪個(gè)部件？【選項(xiàng)】A.道岔滑床板B.軌道電路絕緣節(jié)C.道岔控制電機(jī)D.軌道電路匹配電容【參考答案】B【詳細(xì)解析】道岔定位失效多由軌道電路分路不良引起，絕緣節(jié)（B）是道岔分路檢測(cè)的關(guān)鍵節(jié)點(diǎn)。若絕緣節(jié)失效，信號(hào)系統(tǒng)誤判道岔未轉(zhuǎn)換到位，需優(yōu)先排查絕緣節(jié)導(dǎo)通性及分路電阻值?！绢}干7】機(jī)車信號(hào)設(shè)備蓄電池組容量通常以多少安時(shí)（Ah）為基準(zhǔn)設(shè)計(jì)？【選項(xiàng)】A.100B.200C.300D.400【參考答案】C【詳細(xì)解析】根據(jù)《鐵路信號(hào)維護(hù)規(guī)則》，機(jī)車信號(hào)蓄電池組需滿足連續(xù)運(yùn)行2小時(shí)不低于300Ah容量，并考慮20%冗余。容量不足會(huì)導(dǎo)致設(shè)備斷電后無法完成信號(hào)傳遞，影響行車安全?！绢}干8】信號(hào)機(jī)顯示錯(cuò)誤時(shí)，應(yīng)優(yōu)先執(zhí)行哪項(xiàng)操作？【選項(xiàng)】A.立即切斷電源B.記錄故障現(xiàn)象C.手動(dòng)復(fù)測(cè)軌道電路D.通知調(diào)度中心【參考答案】B【詳細(xì)解析】?jī)?yōu)先記錄故障現(xiàn)象（B）是標(biāo)準(zhǔn)化處置流程。直接斷電（A）可能造成信號(hào)丟失，手動(dòng)復(fù)測(cè)（C）需在確認(rèn)安全后進(jìn)行，通知調(diào)度（D）應(yīng)為后續(xù)步驟。記錄包括顯示狀態(tài)、時(shí)間、環(huán)境條件等關(guān)鍵信息?！绢}干9】軌道電路道岔區(qū)段長(zhǎng)度設(shè)計(jì)標(biāo)準(zhǔn)一般為多少米？【選項(xiàng)】A.50B.80C.120D.150【參考答案】C【詳細(xì)解析】《鐵路信號(hào)設(shè)計(jì)規(guī)范》規(guī)定道岔區(qū)段長(zhǎng)度應(yīng)為120米，此長(zhǎng)度可保證道岔轉(zhuǎn)換完成時(shí)信號(hào)系統(tǒng)完成檢測(cè)，避免因區(qū)段過長(zhǎng)導(dǎo)致檢測(cè)滯后或誤判?！绢}干10】機(jī)車信號(hào)設(shè)備抗電磁干擾措施中最有效的是？【選項(xiàng)】A.屏蔽電纜B.接地處理C.濾波電路D.冗余設(shè)計(jì)【參考答案】A【詳細(xì)解析】屏蔽電纜（A）通過金屬層反射電磁波，可降低90%以上干擾。接地（B）僅能導(dǎo)流，濾波（C）針對(duì)特定頻率，冗余（D）提升可靠性而非抗干擾。機(jī)車信號(hào)對(duì)電磁敏感，屏蔽層需符合IEC60664標(biāo)準(zhǔn)?！绢}干11】信號(hào)機(jī)燈泡更換后需進(jìn)行哪些測(cè)試？【選項(xiàng)】A.亮度測(cè)試B.色別測(cè)試C.頻閃測(cè)試D.全電路通斷測(cè)試【參考答案】ABCD【詳細(xì)解析】燈泡更換后必須全面檢測(cè)：亮度（A）確保照度達(dá)標(biāo)，色別（B）符合GB/T23830信號(hào)燈顏色標(biāo)準(zhǔn)，頻閃（C）驗(yàn)證驅(qū)動(dòng)電路正常，通斷（D）排除短路或斷路。缺一不可，直接影響行車安全?！绢}干12】軌道電路道岔段匹配電阻的阻值范圍是多少歐姆？【選項(xiàng)】A.10-20B.30-50C.70-90D.100-120【參考答案】A【詳細(xì)解析】ZPW-2000A系統(tǒng)道岔段匹配電阻為10-20Ω，用于平衡軌道電路阻抗，確保信號(hào)電壓穩(wěn)定。阻值過大會(huì)導(dǎo)致分壓過高，過小則信號(hào)衰減，需按《鐵路信號(hào)維護(hù)規(guī)則》定期測(cè)量。【題干13】機(jī)車信號(hào)設(shè)備電源電壓允許波動(dòng)范圍為多少伏？【選項(xiàng)】A.±5%B.±10%C.±15%D.±20%【參考答案】A【詳細(xì)解析】機(jī)車信號(hào)電源波動(dòng)需控制在±5%（A），符合IEC60664-1標(biāo)準(zhǔn)?！?0%雖常見于普通設(shè)備，但信號(hào)系統(tǒng)對(duì)電壓敏感，波動(dòng)超過5%可能引發(fā)誤碼或信號(hào)丟失。【題干14】信號(hào)機(jī)顯示異常時(shí)，應(yīng)優(yōu)先檢查哪個(gè)部件？【選項(xiàng)】A.電源模塊B.燈泡C.控制電纜D.軌道電路【參考答案】D【詳細(xì)解析】軌道電路（D）是信號(hào)顯示的核心，電源（A）故障會(huì)導(dǎo)致全無顯示，燈泡（B）異常僅影響亮度或色別，電纜（C）問題可能引起局部斷路。優(yōu)先檢查軌道電路可快速定位分路或匹配問題。【題干15】機(jī)車信號(hào)設(shè)備中，軌道電路分路不良的典型表現(xiàn)為？【選項(xiàng)】A.信號(hào)燈頻閃加快B.接收器報(bào)警C.軌道電壓下降D.信號(hào)機(jī)熄滅【參考答案】BCD【詳細(xì)解析】分路不良時(shí)，接收器（B）會(huì)因軌道電阻升高觸發(fā)報(bào)警，軌道電壓（C）因負(fù)載增加而下降，信號(hào)機(jī)（D）可能熄滅或顯示錯(cuò)誤。頻閃加快（A）多與驅(qū)動(dòng)電路或燈泡有關(guān)?！绢}干16】信號(hào)機(jī)燈絲熔斷后，應(yīng)急處理措施是？【選項(xiàng)】A.立即更換燈泡B.調(diào)整燈泡電壓C.使用替代光源D.通知調(diào)度中心【參考答案】D【詳細(xì)解析】應(yīng)急處理（D）需按《鐵路行車組織規(guī)則》執(zhí)行，禁止自行操作。通知調(diào)度后，由專業(yè)人員處理。直接更換（A）需在確認(rèn)設(shè)備靜止且安全后進(jìn)行，調(diào)整電壓（B）可能引發(fā)其他故障?！绢}干17】軌道電路絕緣節(jié)檢測(cè)中，分路電阻值應(yīng)滿足多少歐姆？【選項(xiàng)】A.<50B.<100C.<200D.<500【參考答案】C【詳細(xì)解析】分路電阻（C）需<200Ω，符合《鐵路信號(hào)維護(hù)規(guī)則》要求。電阻過大（如>200Ω）會(huì)導(dǎo)致接收器誤判分路不良，影響信號(hào)機(jī)顯示。檢測(cè)時(shí)需使用高精度萬用表，避免接觸電阻干擾?！绢}干18】機(jī)車信號(hào)設(shè)備中，電源電壓異常可能由哪些原因引起？（多選）【選項(xiàng)】A.蓄電池老化B.整流模塊故障C.接觸不良D.環(huán)境溫度過低【參考答案】ABCD【詳細(xì)解析】電源異常常見于蓄電池（A）容量衰減、整流模塊（B）擊穿或短路、接觸點(diǎn)（C）氧化松動(dòng)、低溫（D）導(dǎo)致電池內(nèi)阻升高。需依次檢測(cè)電壓波形、負(fù)載電流、連接狀態(tài)及環(huán)境溫度?！绢}干19】信號(hào)機(jī)燈泡色別錯(cuò)誤可能由哪些部件故障引起？（多選）【選項(xiàng)】A.燈泡B.燈絲C.驅(qū)動(dòng)電路D.軌道電路【參考答案】ACD【詳細(xì)解析】色別錯(cuò)誤（A）多為燈泡本身問題，驅(qū)動(dòng)電路（C）故障可能導(dǎo)致電壓異常（如紅光發(fā)黃），軌道電路（D）分路不良可能引發(fā)誤觸發(fā)。燈絲（B）老化僅影響亮度，不改變色別。【題干20】機(jī)車信號(hào)設(shè)備中，軌道電路匹配電容失效的典型后果是？【選項(xiàng)】A.信號(hào)燈亮度不足B.信號(hào)機(jī)顯示錯(cuò)誤C.接收器頻繁報(bào)警D.機(jī)車制動(dòng)失靈【參考答案】BCD【詳細(xì)解析】匹配電容失效（D）會(huì)導(dǎo)致軌道電路阻抗失配，信號(hào)電壓波動(dòng)（B），接收器誤判分路（C），同時(shí)可能引發(fā)信號(hào)燈亮度不足（A）。若電容短路，可能直接導(dǎo)致接收器報(bào)警（C）和機(jī)車制動(dòng)異常（D）。2025年事業(yè)單位工勤技能-吉林-吉林信號(hào)工-機(jī)車信號(hào)設(shè)備維修二級(jí)（技師）歷年參考題庫含答案解析(篇3)【題干1】軌道電路絕緣不良會(huì)導(dǎo)致信號(hào)設(shè)備出現(xiàn)哪種故障現(xiàn)象？【選項(xiàng)】A.信號(hào)燈頻繁熄滅B.道岔無法正常轉(zhuǎn)換C.電源電壓突然下降D.聯(lián)鎖系統(tǒng)誤動(dòng)【參考答案】A【詳細(xì)解析】軌道電路絕緣不良時(shí)，電流會(huì)通過絕緣破損點(diǎn)形成漏路，導(dǎo)致軌道電路電阻增大，信號(hào)燈供電不足而頻繁熄滅。選項(xiàng)B與道岔機(jī)械結(jié)構(gòu)相關(guān)，C涉及電源系統(tǒng)，D與聯(lián)鎖邏輯電路有關(guān)，均與絕緣故障無直接關(guān)聯(lián)。【題干2】機(jī)車信號(hào)設(shè)備中，自動(dòng)調(diào)整器的作用是什么？【選項(xiàng)】A.提高信號(hào)燈亮度B.補(bǔ)償軌道電路電阻變化C.延長(zhǎng)道岔轉(zhuǎn)換時(shí)間D.優(yōu)化信號(hào)傳輸距離【參考答案】B【詳細(xì)解析】自動(dòng)調(diào)整器通過實(shí)時(shí)監(jiān)測(cè)軌道電路電阻值，自動(dòng)調(diào)整送電電流以維持軌道電路特性阻抗穩(wěn)定，從而補(bǔ)償因溫度或負(fù)載變化引起的電阻波動(dòng)，確保信號(hào)傳輸可靠性。其他選項(xiàng)分別對(duì)應(yīng)照明系統(tǒng)、道岔控制及信號(hào)傳輸設(shè)計(jì)環(huán)節(jié)?！绢}干3】信號(hào)機(jī)顯示“紅光帶+黃燈”表示什么運(yùn)行狀態(tài)？【選項(xiàng)】A.列車準(zhǔn)許進(jìn)路B.禁止進(jìn)路C.車站停留D.預(yù)備進(jìn)路【參考答案】C【詳細(xì)解析】根據(jù)鐵路信號(hào)顯示規(guī)則，“紅光帶+黃燈”為車站停留信號(hào)，表示列車可進(jìn)入站內(nèi)停留但不得動(dòng)車。紅光帶表示禁止信號(hào)，黃燈則為補(bǔ)充顯示，與準(zhǔn)許進(jìn)路（兩黃燈）、禁止進(jìn)路（兩紅燈）及預(yù)備進(jìn)路（一黃一紅）形成明確區(qū)分?！绢}干4】軌道電路分路不良時(shí)，軌道電路檢測(cè)器會(huì)輸出什么信號(hào)？【選項(xiàng)】A.持續(xù)高電平B.短暫低電平C.斷續(xù)脈沖信號(hào)D.無信號(hào)輸出【參考答案】B【詳細(xì)解析】軌道電路分路不良導(dǎo)致分路檢測(cè)器無法檢測(cè)到列車輪對(duì)壓接，其輸出端會(huì)從正常的高電平（軌道占用狀態(tài)）瞬間變?yōu)榈碗娖剑ǚ致窢顟B(tài)），觸發(fā)聯(lián)鎖系統(tǒng)處理列車進(jìn)路沖突。選項(xiàng)A為持續(xù)占用信號(hào)，C為分路正常時(shí)的脈沖信號(hào)，D表示設(shè)備故障?！绢}干5】下列哪種設(shè)備用于監(jiān)測(cè)信號(hào)機(jī)燈泡的發(fā)光強(qiáng)度？【選項(xiàng)】A.光電轉(zhuǎn)換器B.閃光燈控制器C.燈泡壽命檢測(cè)儀D.電源電壓表【參考答案】A【詳細(xì)解析】光電轉(zhuǎn)換器通過內(nèi)置光敏元件實(shí)時(shí)監(jiān)測(cè)信號(hào)燈發(fā)光強(qiáng)度，當(dāng)亮度低于設(shè)定閾值時(shí)觸發(fā)報(bào)警，確保信號(hào)顯示符合《鐵路技術(shù)管理規(guī)程》要求。選項(xiàng)B控制閃光頻率，C檢測(cè)燈泡壽命，D僅測(cè)量電源電壓值。【題干6】信號(hào)樓內(nèi)電源中斷時(shí)，備用電源的持續(xù)供電時(shí)間不得少于多少分鐘？【選項(xiàng)】A.15B.30C.45D.60【參考答案】B【詳細(xì)解析】依據(jù)《鐵路信號(hào)設(shè)備維護(hù)規(guī)則》，信號(hào)樓備用電源（如蓄電池組）需在主電源中斷時(shí)持續(xù)供電至少30分鐘，確保信號(hào)設(shè)備完成切換并維持關(guān)鍵電路工作。選項(xiàng)A為接觸網(wǎng)斷電檢測(cè)響應(yīng)時(shí)間，C為道岔手動(dòng)操作準(zhǔn)備時(shí)間，D為特殊場(chǎng)景備用要求?！绢}干7】道岔轉(zhuǎn)換結(jié)束后，確認(rèn)其密貼狀態(tài)的正確方法是？【選項(xiàng)】A.觸碰道岔尖軌B.測(cè)量道岔導(dǎo)曲線半徑C.使用密貼檢測(cè)尺D.觀察道岔尖軌與基本軌間隙【參考答案】C【詳細(xì)解析】密貼檢測(cè)尺通過測(cè)量道岔尖軌與基本軌工作面之間的最小間隙（標(biāo)準(zhǔn)值為0-1mm），直接驗(yàn)證機(jī)械聯(lián)鎖的密貼狀態(tài)。選項(xiàng)A為分路檢測(cè)手段，B為軌道幾何尺寸測(cè)量，D為經(jīng)驗(yàn)性觀察方法，均無法準(zhǔn)確量化密貼精度?！绢}干8】自動(dòng)閉塞區(qū)段，列車占用區(qū)間后，軌道電路會(huì)呈現(xiàn)什么電氣特性？【選項(xiàng)】A.高阻態(tài)B.低阻態(tài)C.振蕩態(tài)D.開路態(tài)【參考答案】B【詳細(xì)解析】列車占用區(qū)間時(shí)，軌道電路通過車輪導(dǎo)電形成低阻態(tài)（約0.5Ω），使區(qū)段終端檢測(cè)器持續(xù)接收低電平信號(hào)。選項(xiàng)A為分路狀態(tài)，C為軌道電路測(cè)試時(shí)注入的信號(hào)狀態(tài)，D表示電路斷開。【題干9】信號(hào)機(jī)顯示“一黃一紅”燈時(shí)，表示列車處于什么運(yùn)行狀態(tài)？【選項(xiàng)】A.準(zhǔn)許進(jìn)入?yún)^(qū)間B.允許出站C.預(yù)備進(jìn)路D.禁止越出區(qū)間【參考答案】C【詳細(xì)解析】根據(jù)鐵路信號(hào)顯示規(guī)則，“一黃一紅”為預(yù)備進(jìn)路信號(hào)，表示列車已進(jìn)入進(jìn)路但尚未完全確認(rèn)，需待列車司機(jī)確認(rèn)信號(hào)后方可動(dòng)車。選項(xiàng)A為進(jìn)路開通信號(hào)（兩黃燈），B為出站信號(hào)（黃燈），D為禁止信號(hào)（兩紅燈）?！绢}干10】下列哪種故障會(huì)導(dǎo)致信號(hào)機(jī)顯示異常但軌道電路無分路狀態(tài)？【選項(xiàng)】A.燈泡燒毀B.軌道電路絕緣破損C.光電轉(zhuǎn)換器故障D.聯(lián)鎖系統(tǒng)程序錯(cuò)誤【參考答案】C【詳細(xì)解析】光電轉(zhuǎn)換器故障時(shí)，即使軌道電路正常分路，其輸出信號(hào)仍會(huì)異常（如持續(xù)高電平或無輸出），導(dǎo)致信號(hào)機(jī)顯示錯(cuò)誤。選項(xiàng)A引發(fā)信號(hào)燈熄滅但分路狀態(tài)正常，B導(dǎo)致分路檢測(cè)錯(cuò)誤，D影響聯(lián)鎖邏輯判斷?！绢}干11】信號(hào)設(shè)備年檢測(cè)中，軌道電路絕緣值標(biāo)準(zhǔn)不得低于多少千歐？【選項(xiàng)】A.1B.5C.10D.20【參考答案】C【詳細(xì)解析】《鐵路信號(hào)維護(hù)規(guī)則》規(guī)定，軌道電路絕緣電阻每年檢測(cè)值不得低于10kΩ，若低于此值需進(jìn)行絕緣整治。選項(xiàng)A為道岔機(jī)械部件絕緣要求，B為信號(hào)機(jī)燈泡絕緣標(biāo)準(zhǔn)，D為特殊設(shè)備測(cè)試指標(biāo)?！绢}干12】機(jī)車信號(hào)設(shè)備中，動(dòng)態(tài)接收器的功能是？【選項(xiàng)】A.解析地面信號(hào)機(jī)信息B.調(diào)制車載信號(hào)編碼C.檢測(cè)列車位置D.轉(zhuǎn)換電源頻率【參考答案】A【詳細(xì)解析】動(dòng)態(tài)接收器負(fù)責(zé)接收并解析地面發(fā)送的ATP（自動(dòng)列車防護(hù)）信號(hào)，包括速度、進(jìn)路等信息，并與車載設(shè)備比對(duì)實(shí)現(xiàn)速度控制。選項(xiàng)B為地面發(fā)送器功能，C為軌道電路檢測(cè)器作用，D與電源模塊相關(guān)?！绢}干13】信號(hào)機(jī)燈絲燒斷時(shí)，備用燈泡的更換時(shí)間不得超過多少分鐘？【選項(xiàng)】A.30B.60C.90D.120【參考答案】B【詳細(xì)解析】根據(jù)《鐵路信號(hào)設(shè)備故障處理規(guī)程》，信號(hào)燈燈絲燒斷后需在60分鐘內(nèi)更換備用燈泡，確保信號(hào)顯示連續(xù)。選項(xiàng)A為接觸網(wǎng)檢修作業(yè)限時(shí)，C為軌道電路檢測(cè)周期，D為信號(hào)機(jī)年大修間隔?！绢}干14】自動(dòng)過分相裝置在什么情況下啟動(dòng)？【選項(xiàng)】A.接觸網(wǎng)電壓波動(dòng)超過±10%B.軌道電路分路不良C.信號(hào)機(jī)顯示錯(cuò)誤D.列車速度超過160km/h【參考答案】A【詳細(xì)解析】自動(dòng)過分相裝置用于在接觸網(wǎng)電壓波動(dòng)超過±10%時(shí)，通過分段絕緣器切換供電區(qū)間，避免機(jī)車受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓受電弓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