汽车维修技师试题库

《汽车维修技师试题库》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、窗体顶端1.汽车进入巡航控制状态后，若车速过低，ECU将自动解除巡航控制。                            √        ×2.韩国大宇轿车上的EVAP轿车系统采用的是ECU控制。                            √        ×3.二氧化锆氧传感器输出特性是在空燃比14.7附近有突变。                            √        ×4.一般氧传感器安装在排气管处，三元催化装置前面。                            √   

2、     ×5.曲轴箱窜气的主要成份是HC和CO。                            √        ×6.废气再循环的作用是减少HC、CO和NOx的排放量。                            √        ×7.柴油机的主要污染物是HC和NOx和碳烟。                            √        ×8.EGR控制系统是将适量废气重新引入气缸燃烧，从而提高气缸的最高温度。                            √        ×oth

3、erstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwest

4、OfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand9.点火开关按通，发动机没有起动或起动后短时间内“故障指示灯”点亮说明系统有故障。                            √        ×10.如果二次空气喷射系

5、统发生故障时，会使HC的排放量降低。                            √        ×窗体底端窗体顶端1.电控节气门系统发生故障时，系统会继续停止工作。                            √        ×2.废气再循环是取决于EGR开度，而EGR开度是ECU控制。                            √        ×3.失效保护系统不能保证控制系统优化控制。                            √        ×4.采用EGR系统对发

6、动机性能不会造成影响。                            √        ×5.步进电机式怠速控制阀在点火开关断开后必须继续通电使其退回到初始位置。                            √        ×6.在怠速工况运行时，节气门位置传感器的怠速触点打开。                            √        ×otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirector

7、ofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,Dire

8、ctorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand7.在谐波增压控制系统中，当气体惯性过后进气门附近被压缩的气体膨胀而流向进气相同的方向。