資源描述:
《汽車維修技師試題庫》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在工程資料-天天文庫。
1、窗體頂端1.汽車進入巡航控制狀態(tài)后,若車速過低,ECU將自動解除巡航控制。????????????????????????????√????????×2.韓國大宇轎車上的EVAP轎車系統(tǒng)采用的是ECU控制。????????????????????????????√????????×3.二氧化鋯氧傳感器輸出特性是在空燃比14.7附近有突變。????????????????????????????√????????×4.一般氧傳感器安裝在排氣管處,三元催化裝置前面。????????????????????????????√???
2、?????×5.曲軸箱竄氣的主要成份是HC和CO。????????????????????????????√????????×6.廢氣再循環(huán)的作用是減少HC、CO和NOx的排放量。????????????????????????????√????????×7.柴油機的主要污染物是HC和NOx和碳煙。????????????????????????????√????????×8.EGR控制系統(tǒng)是將適量廢氣重新引入氣缸燃燒,從而提高氣缸的最高溫度。????????????????????????????√????????×oth
3、erstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwest
4、OfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand9.點火開關(guān)按通,發(fā)動機沒有起動或起動后短時間內(nèi)“故障指示燈”點亮說明系統(tǒng)有故障。????????????????????????????√????????×10.如果二次空氣噴射系
5、統(tǒng)發(fā)生故障時,會使HC的排放量降低。????????????????????????????√????????×窗體底端窗體頂端1.電控節(jié)氣門系統(tǒng)發(fā)生故障時,系統(tǒng)會繼續(xù)停止工作。????????????????????????????√????????×2.廢氣再循環(huán)是取決于EGR開度,而EGR開度是ECU控制。????????????????????????????√????????×3.失效保護系統(tǒng)不能保證控制系統(tǒng)優(yōu)化控制。????????????????????????????√????????×4.采用EGR系統(tǒng)對發(fā)
6、動機性能不會造成影響。????????????????????????????√????????×5.步進電機式怠速控制閥在點火開關(guān)斷開后必須繼續(xù)通電使其退回到初始位置。????????????????????????????√????????×6.在怠速工況運行時,節(jié)氣門位置傳感器的怠速觸點打開。????????????????????????????√????????×otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirector
7、ofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,Dire
8、ctorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand7.在諧波增壓控制系統(tǒng)中,當氣體慣性過后進氣門附近被壓縮的氣體膨脹而流向進氣相同的方向。?