汽车修理工中级理论知识复习题

PAGE/r/nPAGE/r/n16/r/n汽车修理工/r/n中/r/n级理论知识复习题/r/n一、单项选择题（选择一个正确的答案，将相应的字母填入题内的括号中。每题1分。）/r/n1．/r/n三相电源的三角形连接也称为/r/n()。/r/nA、/r/n三相四线制供电电路/r/n/r/n/r/nB、/r/n三相三线制供电电路/r/nC、/r/n四相三线制供电电路/r/n/r/n/r/nD、/r/n四相四线制供电电路/r/n2．/r/n液压系统中的动力元件/r/n——/r/n液压泵的功用是把输入的机械能转变为油液的/r/n(/r/n/r/n)。/r/n/r/n/r/nA、/r/n动能/r/n/r/n/r/nB、/r/n势能/r/n/r/n/r/nC、/r/n压力能/r/n/r/n/r/nD、/r/n化学能/r/n3．/r/n关于使用千斤顶，以下说法错误/r/n的是(/r/n/r/n)。/r/nA、/r/n顶升前，用/r/n档块将车轮塞好/r/n/r/n/r/nB、/r/n可以同时使用多个千斤顶/r/n/r/nC、/r/n千斤顶举升车辆的位置应正确/r/n/r/n/r/nD、/r/n不能在千斤顶支撑的车下作业/r/n4．/r/n火花塞套筒在使用时，应根据火花塞的装配位置和火花塞六角尺寸，选用不同高度和/r/n(/r/n/r/n)/r/n的火花塞套筒/r/n。/r/nA、/r/n径向尺寸/r/n/r/n/r/nB、/r/n轴向尺寸/r/n/r/n/r/nC、/r/n宽度/r/n/r/n/r/nD、/r/n长度/r/n5．/r/n利用通用型解码器进行故障码的调取，以下操作不正确的是/r/n(/r/n/r/n)。/r/nA、/r/n选择测试车型的软件测试卡/r/n/r/n/r/n/r/nB、/r/n解码器插头插入汽车诊断座/r/n/r/nC/r/n、/r/n解码器电源插头/r/n可/r/n插入汽车电烟器中/r/n/r/n/r/nD、/r/n起动发动机/r/n6．/r/n以下部件中，属于汽油机电子燃油喷射系统中控制装置的是/r/n(/r/n/r/n)。/r/nA、/r/n空气流量计/r/n/r/n/r/nB、/r/n节气门/r/n/r/n/r/nC、/r/n油压调节器/r/n/r/n/r/nD、/r/n水温传感器/r/n7．/r/n汽油机电子燃油喷射系统中油压调节器的功用是：使燃油供给系统的压力与进气管压力/r/n(/r/n/r/n)/r/n保持恒定/r/n。/r/nA、/r/n之和/r/n/r/n/r/nB、/r/n之积/r/n/r/n/r/nC/r/n、/r/n之商/r/n/r/n/r/nD、/r/n之差/r/n8．/r/n液压制动系统一般由制动踏板、推杆、/r/n(/r/n/r/n)/r/n、贮液室、油管及制动轮缸等组成/r/n。/r/nA、/r/n制动主缸/r/nB、/r/n制动动力缸/r/nC、/r/n制动液压缸/r/nD、/r/n制动分泵/r/n9．/r/n气压制动系统主要由空气压缩机、贮气筒、/r/n()/r/n和制动气室等组成/r/n。/r/nA、/r/n制动主缸/r/n/r/n/r/nB、/r/n制动轮缸/r/n/r/n/r/nC、/r/n制动控制阀/r/n/r/n/r/nD、/r/n进出油阀/r/n10．/r/n利用氧传感器进行闭环控制，从而实现/r/n(/r/n/r/n)/r/n的最佳控制/r/n。/r/nA、/r/n进气提前角/r/n/r/n/r/nB、/r/n燃油喷射量/r/n/r/n/r/nC、/r/n排气迟后角/r/n/r/n/r/nD、/r/n进气量/r/n11/r/n．/r/n确定曲轴转速和曲轴位置主要目的是确定/r/n(/r/n/r/n)。/r/nA、/r/n进气提前时间和点火时间/r/n/r/n/r/nB、/r/n点火时间和喷油时间/r/n/r/nC、/r/n喷油时间和排气迟后时间/r/nD、/r/n进气提前时间和排气迟后时间/r/n12．/r/n以下关于电控单元的描述，不正确的是/r/n(/r/n/r/n)。/r/nA、/r/n包括硬件和软件两部分/r/n/r/n/r/nB、/r/n软件是电控单元中所有实际装置的总称/r/nC、/r/n可以向传感器发出5V的工作电压/r/n/r/n/r/nD、/r/n具有自我修正功能/r/n13．/r/nRAM称为/r/n(/r/n/r/n)。/r/nA、/r/n只读存储器/r/nB、/r/n随机存储器/r/n/r/nC/r/n、/r/nA/D转换器/r/nD、/r/n可改写的只读存储器/r/n14．/r/n关/r/n于防止由于油箱盖丢失造成的蒸发污染物超标和燃油溢出的描述，不/r/n正确的是(/r/n/r/n)。/r/nA、/r/n可拿掉的自动开启和关闭的油箱盖/r/nB/r/n、从设计结构上防止油箱盖丢失所造成的蒸发污染物超标/r/nC/r/n、绳索拴住的或链条拴住的油箱盖/r/nD、/r/n油箱盖锁和汽车点火使用同一把钥匙，这时，油箱盖只有锁上时才能拔掉钥匙/r/n/r/n15．下/r/n面是排放污染的防止措施，不/r/n正确的是(/r/n/r/n)。/r/nA、/r/n改进内燃机的结构/r/nB、/r/n采用高压缩比的发动机/r/nC、/r/n使汽油完全不燃烧/r/nD、/r/n使用电力驱动车辆/r/n16．/r/n汽车修理企业全部工作质量的综合性指标是/r/n(/r/n/r/n)。/r/nA、/r/n返修率/r/n/r/n/r/nB、/r/n返工率/r/n/r/n/r/nC/r/n、/r/n一次检验合格率/r/n/r/nD、/r/n最终检验合格率/r/n1/r/n7/r/n．/r/n热敏电阻式冷却液温度传感器在不同温度下/r/n(/r/n/r/n)/r/n会发生变化/r/n。/r/nA、/r/n只有电阻值/r/nB、/r/n只有电压值/r/nC/r/n、/r/n电阻和电压值/r/nD、/r/n电阻和电压值都不/r/n18．/r/n测量进气管真空度时应在/r/n(/r/n/r/n)/r/n处测量/r/n。/r/nA、/r/n空气滤清器前/r/n/r/n/r/nB、/r/n空气滤清器后/r/n/r/n/r/nC、/r/n节气门前/r/n/r/n/r/nD、/r/n节气门后/r/n19．/r/n背隙值是活塞环槽深度和环宽两者之/r/n(/r/n/r/n)。/r/nA、/r/n和/r/n/r/n/r/nB、/r/n差/r/n/r/n/r/nC/r/n、/r/n积/r/nD、/r/n商/r/n20．/r/n测量气门杆与导管配合间隙时，百分表指针摆幅值/r/n(/r/n/r/n)/r/n为其配合间隙/r/n。/r/nA、/r/n1/4/r/n/r/n/r/nB、/r/n1//r/n2/r/n/r/n/r/nC/r/n、/r/n1倍/r/n/r/n2I．/r/n测量凸轮轴轴向间隙，/r/n(/r/n/r/n)/r/n撬动凸轮轴并用百分表测量/r/n。/r/nA、/r/n左右/r/n/r/n/r/nB、/r/n上下/r/n/r/n/r/nC/r/n、/r/n前后/r/n/r/n/r/n/r/nD、/r/n圆周/r/n22．/r/n测量气门杆直线度时，转动气门一圈，百分表最大读数与最小读数的/r/n(/r/n/r/n)/r/n即为气门杆直线度/r/n。/r/nA、/r/n和/r/n/r/n/r/n/r/nB、/r/n差/r/n/r/n/r/nC、/r/n差值的一半/r/n/r/n/r/nD、/r/n和的一半/r/n23．/r/n气缸同一截面最大与最小测量直径相减除以2得出的是/r/n(/r/n/r/n)。/r/nA、/r/n气缸垂直度/r/n/r/n/r/nB、/r/n气缸圆柱度/r/n/r/n/r/nC、/r/n气缸圆度/r/n/r/n/r/nD、/r/n气缸锥度/r/n24．/r/n气缸圆柱度误差计算是气缸不同截面最大测量直径与/r/n(/r/n/r/n)/r/n直径相减除以2/r/n。/r/nA、/r/n标准/r/n/r/n/r/n/r/n/r/nB、/r/n最小测量/r/n/r/n/r/n/r/nC/r/n、/r/n活塞最大/r/n/r/n/r/n/r/nD、/r/n活塞最小/r/n25．/r/n6缸柴油机的各缸供油间隔角误差不超过/r/n(/r/n/r/n)。/r/nA、/r/n±/r/n0.1度/r/n/r/n/r/n/r/n/r/nB、/r/n±/r/n0.4度/r/n/r/n/r/nC/r/n、/r/n±/r/n0.3度/r/n/r/n/r/nD、/r/n±/r/n0.5度/r/n26．/r/n下列说法正确的是/r/n(/r/n/r/n)。/r/nA、/r/n接通点火开关，检查霍尔传感器/r/n“/r/n+/r/n”/r/n端子与/r/n“﹣”/r/n端子的电压来判断霍尔传感器线路/r/n/r/nB、/r/n接通点火开关，检查霍尔传感器/r/n“/r/n+/r/n”/r/n端子与/r/n“﹣”/r/n端子的电阻来判断霍尔传感器线路/r/nC、/r/n接通点火开关，检查霍尔传感器/r/n“/r/n+/r/n”/r/n端子与/r/n“﹣”/r/n端子的电流来判断霍尔传感器线路/r/n/r/nD、/r/n接通点火开关，检查霍尔传感器/r/n“/r/n+/r/n”/r/n端子与/r/n“﹣”/r/n端子的磁场来判断霍尔传感器线路/r/n27．/r/n/r/n(/r/n/r/n)/r/n是诊断发动机机油压力过高故障的正确做法/r/n。/r/nA、/r/n检查低压电路是否断路/r/n/r/n/r/nB、/r/n检查主轴颈与主轴承配合间隙是否过小/r/n/r/nC、/r/n检查气门间隙/r/n/r/n/r/nD、/r/n检查混合气是否/r/n过/r/n浓/r/n28．(/r/n/r/n)是诊断发动机/r/n机油变质过快/r/n故障的正确做法。/r/nA、检查/r/n活塞与气缸壁之间的间隙/r/n是否/r/n过大/r/n/r/n/r/nB、检查/r/n空气滤清器/r/n是否/r/n堵塞/r/nC、检查/r/n集滤清器是否堵塞/r/n/r/n/r/n/r/nD、检查/r/n机油泵的泵油情况/r/n29．/r/n在冷却液充足的条件下，/r/n造成发动机/r/n过热/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n机油泵损坏/r/n/r/n/r/nB、/r/n冷却水套内水垢过多/r/nC、/r/n点火控制器损坏/r/nD、/r/n起动机损坏/r/n30．(/r/n/r/n)是诊断发动机/r/n突然过热/r/n故障的正确做法。/r/nA、检查/r/n分电器状况/r/n/r/n/r/nB、检查/r/n混合气浓度/r/n/r/nC/r/n、检查/r/n气缸垫/r/n是否/r/n损坏/r/n/r/n/r/nD、检查/r/n点火提前角是否过小/r/n31．/r/n汽车污染物排放的途径可能是/r/n(/r/n/r/n)。/r/nA、/r/n进气系统/r/n/r/n/r/n/r/n/r/nB、/r/n闭环系统/r/n/r/n/r/n/r/nC/r/n、/r/n燃油箱蒸发泄漏/r/n/r/n/r/nD、/r/n废气涡轮增压系统/r/n32．(/r/n/r/n)是诊断发动机冷/r/n却液消耗异常/r/n故障的正确做法。/r/nA、/r/n检查百叶窗/r/n/r/n/r/nB、/r/n检查风扇离合器状况/r/n/r/nC、检查/r/n节温器是否损坏/r/n/r/n/r/n/r/n/r/nD/r/n、检查散热器盖处有无水溢出/r/n33．造成发动机/r/n冷却液温度过低/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n混合气过稀/r/n/r/n/r/nB、/r/n散热器堵塞/r/nC、/r/n传感器损坏/r/n/r/n/r/nD、/r/n混合气过浓/r/n34．(/r/n/r/n)是诊断发动机/r/n冷却液温度过低/r/n故障的正确做法。/r/nA、检查/r/n分电器状况/r/n/r/n/r/n/r/nB、/r/n检查水泵轴与叶轮是否松脱/r/n/r/nC/r/n、/r/n打开水箱盖，检查冷却液是否进行循环/r/n/r/n/r/nD、检/r/n查/r/n点火提前角/r/n35．造成发动机/r/n机油压力过低/r/n的原因可能是/r/n（/r/n/r/n/r/n）/r/n。/r/nA、/r/n轴颈与轴承的配合间隙小/r/n/r/nB、/r/n机油粘度高/r/n/r/nC/r/n、/r/n集滤器堵塞/r/nD、/r/n混合气过浓/r/n36．(/r/n/r/n)是诊断发动机/r/n机油压力过低/r/n故障的/r/n正/r/n确做法。/r/nA、检查/r/n机油液面高/r/n/r/nB、检查/r/n气缸压缩压力/r/n/r/nC/r/n、检查/r/n混合气浓度/r/n/r/nD、/r/n检查点火提前角/r/n37．/r/n转向轮定位主要是指前轮前束、/r/n(/r/n/r/n)/r/n、主销内倾和主销后倾等参数/r/n。/r/nA、/r/n推进角/r/n/r/n/r/nB、/r/n退缩角/r/nC、/r/n轮距/r/n/r/n/r/nD、/r/n前轮外倾/r/n38．/r/n二级维护前应检查车轮轮毂轴承的松紧程度、/r/n(/r/n/r/n)/r/n是否齐全、紧固可靠，车轮偏摆、径向跳动量是否符合规定/r/n。/r/nA、/r/n气嘴保护帽/r/nB、/r/n轮胎平衡块/r/nC、/r/n轮胎螺栓/r/n/r/nD、/r/n轮毂轴承锁止装置/r/n39．/r/nGB7258中规定汽车、汽车列车、无轨电车及四轮农用运输车前轴轴制动力大于或等于轴荷的/r/n(/r/n/r/n)。/r/nA、/r/n40%/r/n/r/n/r/nB/r/n、/r/n50%/r/n/r/n/r/nC、/r/n60%/r/n/r/n/r/n/r/nD、/r/n7/r/n0/r/n%/r/n40/r/n．/r/n手动齿轮式变速器的基本结构包括变速机构和/r/n(/r/n/r/n)/r/n两部分/r/n。/r/nA、/r/n自锁装置/r/n/r/n/r/nB、/r/n操纵机构/r/n/r/n/r/nC、/r/n换档杆/r/n/r/n/r/nD、/r/n拨叉/r/n41．/r/n进行自动变速器失速试验只能检查到前进1档和倒挡的/r/n(/r/n/r/n)/r/n元件/r/n。/r/nA、/r/n控制/r/n/r/n/r/nB、/r/n结构/r/n/r/n/r/nC、/r/n传力/r/n/r/n/r/nD、/r/n执行/r/n42．/r/n差速器用以连接左右半轴、可使两侧车轮以不同/r/n(/r/n/r/n)/r/n旋转同时传递扭矩/r/n。/r/nA、/r/n线速度/r/n/r/n/r/nB、/r/n角速度/r/n/r/n/r/nC、/r/n扭矩/r/n/r/n/r/nD、/r/n转矩/r/n43．/r/n普通锥齿轮/r/n差速器/r/n由两个或四个圆锥行星齿轮、行星齿轮轴、两个/r/n(/r/n/r/n)/r/n齿轮和左右差速器壳等组成/r/n。/r/nA、/r/n圆锥/r/n/r/n/r/nB、/r/n双曲线/r/n/r/n/r/nC、/r/n直齿/r/n/r/n/r/nD、/r/n圆锥半轴/r/n44．/r/n汽车万向节有刚性、/r/n挠性和/r/n(/r/n/r/n)/r/n三种/r/n。/r/nA、/r/n球笼/r/n/r/n/r/nB、/r/n球叉/r/n/r/n/r/nC、/r/n等角速/r/n/r/nD、/r/n十字轴/r/n45．/r/n独立悬架的常见形式有/r/n(/r/n/r/n)/r/n式悬架、纵向摆臂式悬架和烛式悬架/r/n。/r/nA、/r/n横向摆臂/r/n/r/n/r/nB、/r/n双摆臂/r/n/r/n/r/nC、/r/n多连杆/r/n/r/n/r/nD、/r/n扭杆/r/n46．/r/n主销后倾角是/r/n(/r/n/r/n)/r/n在纵向平面内与通过前轮中心线的垂线间的夹角/r/n。/r/nA、/r/n前轴轴线/r/n/r/n/r/nB、/r/n主销轴线/r/n/r/n/r/nC、/r/n车身中心线/r/n/r/n/r/n/r/nD、/r/n前梁中心线/r/n/r/n/r/n47．/r/n主销内倾角是汽车横向平面内主销轴线与/r/n(/r/n/r/n)/r/n间的夹角/r/n。/r/nA、/r/n垂线/r/n/r/n/r/nB、/r/n车轮轴向垂直平面/r/n/r/n/r/nC、/r/n前轴轴线/r/n/r/n/r/nD、/r/n前梁轴线/r/n48．/r/n气压制动系统中，制动控制阀有单管路复合制动控制阀、/r/n()/r/n和并列双腔膜片式制动控制阀等类型/r/n。/r/nA、/r/n单/r/n腔分动式制/r/n动控制阀/r/n/r/n/r/nB、/r/n并联双腔膜片式制动控制阀/r/n/r/nC、/r/n串联双腔活塞式制动控制阀/r/n/r/n/r/nD、/r/n串联双腔膜片式制动控制阀/r/n49．/r/n制动鼓的工作表面如有宽而深的沟槽、圆度超过/r/n0.25mm/r/n，制动鼓与轮毂轴承座孔的不同轴度大于/r/n(/r/n/r/n)/r/nmm时，应进行镗削/r/n。/r/nA、/r/n0.50/r/n/r/n/r/nB、/r/n0.30/r/n/r/n/r/nC/r/n、/r/n0.20/r/n50．/r/n盘式制动器有钳盘式、/r/n(/r/n/r/n)/r/n和蹄盘式三种/r/n。/r/nA、/r/n浮盘式/r/n/r/n/r/nB、/r/n浮钳式/r/n/r/n/r/nC、/r/n平衡式/r/n/r/n/r/nD、/r/n全盘式/r/n51．/r/n盘式制动器一般由制动盘和/r/n(/r/n/r/n)/r/n组成/r/n。/r/nA、/r/n制动钳（蹄）/r/n/r/n/r/nB、/r/n支承销/r/n/r/n/r/nC、/r/n制动主缸/r/n/r/nD、/r/n自调装置/r/n/r/n52．/r/n常见的驻车制动器有鼓式、/r/n(/r/n/r/n)/r/n和带式三种/r/n。/r/nA、/r/n盘式/r/n/r/n/r/nB、/r/n蹄盘式/r/n/r/n/r/nC、/r/n钳盘式/r/n/r/nD、/r/n浮钳式/r/n/r/n53．/r/n出现/r/n(/r/n/r/n)/r/n引起异响的现象为在起步时出现/r/n“/r/n咣当/r/n”/r/n一声响，或声响较复杂，/r/n如在缓坡上向后倒车时，出现/r/n“/r/n嘎巴、嘎巴/r/n”/r/n的连续声/r/n。/r/nA、/r/n万向节十字轴滚针折断、碎裂/r/n/r/n/r/nB、/r/n传动轴万向节叉等速排列破坏/r/nC、/r/n中间支承轴承散架/r/n/r/n/r/n/r/nD、/r/n中间支承轴承内圈过盈配合松旷/r/n54．/r/n出现/r/n(/r/n/r/n)/r/n引起异响的现象为汽车起步或变换车速时，有明显的撞击声，低速比高速明显/r/n。/r/nA、/r/n凸缘或万向节十字轴轴承磨损松旷/r/n/r/n/r/nB、/r/n传动轴中间支承轴承内圈过盈配合松旷/r/nC、/r/n中间轴承支承架固定螺栓松旷/r/nD、/r/n万向节十字轴滚针折断、碎裂/r/n55．/r/n出现/r/n(/r/n/r/n)/r/n引起异响的现象为汽车起步或行驶中，始终有明显的/r/n“/r/n咔啦/r/n”/r/n异响/r/n，并伴有振动抖/r/n。/r/nA、/r/n传动轴中间支承轴承内圈过盈配合松旷/r/nB、/r/n中间/r/n支承/r/n轴承固定螺栓松旷/r/n/r/nC/r/n、/r/n传动轴万向节叉等速排列/r/n被/r/n破坏/r/n/r/n/r/nD、/r/n中间支承轴承散架/r/n56．/r/n出现()引起异响的现象为/r/n在/r/n汽车/r/n行驶中，声音杂乱无规则，时而出现金属敲击声/r/n。/r/nA、/r/n凸缘或万向节十字轴轴承磨损松旷/r/n/r/n/r/nB、/r/n传动轴中间支承轴承内圈过盈配合松旷/r/n/r/nC/r/n、/r/n传动轴万向节叉等速排列破坏/r/n/r/n/r/nD、/r/n中间支承轴承散架/r/n/r/n57．/r/n出现第一轴前轴承发响的现象为/r/n(/r/n/r/n)。/r/nA、/r/n汽车行驶时，直接档无异响，而其他档位都有异响/r/n/r/nB、/r/n变速器在空档位置、发动机怠速运转时，响声并不明显，但在汽车起步或换档踩离合器的瞬间发出/r/n“/r/n卡喇/r/n”/r/n声，抬起离合器踏板响声消失/r/nC/r/n、/r/n汽车在挂档或换档时，发出/r/n“/r/n嘎嘎/r/n”/r/n声并伴有换档困难/r/nD、/r/n变速器空档位置，发动机怠速运转，变速器发出均匀的响声，踩下离合器踏板响声消失/r/n58．/r/n汽车起步或变换车速时，发出/r/n“/r/n咯咯/r/n”/r/n的撞击声，且正常匀速行驶时，响声减弱或消失。出现这种/r/n现象的原因为/r/n(/r/n/r/n)。/r/nA、/r/n齿隙过大/r/n/r/n/r/nB、/r/n变速器润滑油变质/r/n/r/nC/r/n、/r/n同步器锥环磨损/r/nD、/r/n齿轮花键孔与轴配合松旷/r/n/r/n59．/r/n属/r/n于转向传动机构故障造成的转向沉重的为/r/n(/r/n/r/n)。/r/nA、/r/n转向节臂变形/r/nB、/r/n前轴变形/r/n/r/nC、/r/n轮胎压力不足/r/nD、/r/n车架扭曲变形/r/n60．/r/n汽车转向沉重，顶起前桥，转动转向盘，若感到转向盘变轻，则说明故障在/r/n(/r/n/r/n)。/r/nA、/r/n前桥/r/nB、/r/n车轮/r/n/r/nC、/r/n四轮定位/r/n/r/n/r/nD、/r/n转向器或转向传动装置/r/n61．/r/n以400/r/n—/r/n500N的力用手作用在汽车的前部或后部，待放手后，车身在纵向竖直平面内的振动次数不多于2/r/n—/r/n3次，/r/n说明/r/n(/r/n/r/n)。/r/nA、/r/n减振器良好/r/n/r/n/r/nB、/r/n减振器失效/r/n/r/n/r/nC/r/n、/r/n钢板弹簧失效/r/n/r/n/r/n/r/nD、/r/n弹性元件失效/r/n62．/r/n万向节十字轴轴承缺油，造成的现象为/r/n(/r/n/r/n)。/r/nA、/r/n起步或行驶中，始终有明显的/r/n“/r/n咔啦/r/n”/r/n异响，并伴有抖动/r/n/r/nB、/r/n行驶中，声音杂乱无章，时而出现金属敲击声/r/nC/r/n、/r/n汽车行驶中，变换车速和油门试验，出现/r/n“/r/n咔啦、咔啦/r/n”/r/n的撞击声，/r/n/r/nD、/r/n起步和变换车速时，有明显的撞击声，低速比高速明显/r/n63．/r/n全车线路整齐、连接可靠、绝缘良好是/r/n(/r/n/r/n)/r/n技术要求/r/n。/r/nA、/r/n二级维护/r/n/r/n/r/nB、/r/n一级维护/r/n/r/n/r/nC、/r/n日常维护/r/n/r/n/r/nD、/r/n大修/r/n64．/r/n通过检测结果和故障诊断是/r/n汽车进行/r/n(/r/n/r/n)/r/n的确定依据/r/n。/r/nA、/r/n一级维护附加作业项目/r/n/r/nB、/r/n二级维护附加作业项目/r/n/r/nC/r/n、/r/n一级维护作业内容/r/n/r/nD、/r/n二级维护作业内容/r/n65．/r/n冬季蓄电池容量会/r/n()/r/nA、/r/n降低/r/n/r/n/r/n/r/nB、/r/n增加/r/n/r/nC/r/n、/r/n不变/r/n/r/n/r/nD、/r/n以上说法都不对/r/n66．/r/n空调系统正常工作时，高、低压管路/r/n(/r/n/r/n)。/r/nA、/r/n高压管较粗、低压管较细/r/n/r/n/r/nB、/r/n高压管烫手、低压管冰手为正常/r/n/r/nC/r/n、/r/n低压管结露为不正常/r/n/r/nD、/r/n高/r/n、/r/n低/r/n压/r/n管路有油渍为正常/r/n67．/r/n起动机主电路接通时，/r/n()/r/n被短路/r/n。/r/nA、/r/n电枢线圈/r/n/r/n/r/nB、/r/n励磁线圈/r/n/r/n/r/n/r/nC/r/n、/r/n吸引线圈/r/n/r/n/r/nD、/r/n保持线圈/r/n68．/r/n用万用表的电阻档测量转子滑环与转子轴间的电阻，阻值是无穷大，说明/r/n(/r/n/r/n)。/r/nA、/r/n转子绕组短路/r/nB、/r/n转子绕组断路/r/n/r/nC/r/n、/r/n转子绕组搭铁不良/r/nD、/r/n转子绕组绝缘正常/r/n69．/r/n关于卤化物检漏仪、电子检漏仪说法不正确的是/r/n()/r/n。/r/nA、/r/n电子检漏仪适用R12、R/r/n134a/r/n的检测/r/n/r/n/r/nB、/r/n电子检漏仪使用方便，迅速、/r/n经济、不容易出故障/r/n/r/nC/r/n、/r/n卤化物检漏仪只能检测氟利昂类制冷剂/r/n/r/nD、/r/n卤化物检/r/n漏/r/n仪较电子检漏仪经济/r/n70．/r/n处理装有制冷剂的容器不正确的是/r/n(/r/n/r/n)。/r/nA、/r/n不要加热/r/n制冷剂容器/r/n/r/nB、/r/n使用过的一次性制冷剂容器，可以再次使用/r/nC、/r/n容器要保持在/r/n40/r/n℃/r/n/r/nD、/r/n当用温水加热制冷剂容器时，不允许将容器顶部的阀/r/n门/r/n浸/r/n入/r/n水中，防止水渗入制冷管路/r/n71．，/r/n发动机/r/n起/r/n动困难，/r/n起/r/n动后运转不稳，怠速难以维持，有时/r/n“/r/n回火/r/n”/r/n，/r/n排气管有时有/r/n“/r/n突、突/r/n”/r/n声，甚至/r/n“/r/n放炮/r/n”/r/n，发动机动力不足，易过热，这种现象称为/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n点火错乱/r/n/r/n/r/nB、/r/n高压火花弱/r/n/r/n/r/nC、/r/n低速断火/r/n/r/n/r/nD、/r/n高速断火/r/n72．/r/n起/r/n动发动机，起动机运转正常，但发动机/r/n无着车征兆，其原因是/r/n(/r/n/r/n)/r/n。/r/nA、/r/n点火时间过早/r/n/r/n/r/nB、/r/n点火时间过晚/r/n/r/n/r/nC/r/n、/r/n低速断火/r/n/r/n/r/nD、/r/n高速断火/r/n73．/r/n发动机怠速运转正常，高速运转不稳，由缺火现象。排气管有/r/n“/r/n突突/r/n”/r/n声。这种现象称为/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n点火不正时/r/n/r/nB、/r/n低速断火/r/n/r/n/r/nC、/r/n高压火/r/n花/r/n弱/r/n/r/n/r/nD、/r/n高速/r/n断火/r/n74．/r/n发电机轴承与轴颈配合松动或有故障，可造成/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n发电机充电电流过小/r/n/r/n/r/nB、/r/n发电机充电电流过大/r/n/r/nC/r/n、/r/n发电机异响/r/n/r/n/r/n/r/nD、/r/n发电机不发电/r/n75．/r/n接通起动开关/r/n，/r/n起动机空转，有较轻的摩擦声/r/n音/r/n，说明/r/n(/r/n/r/n)。/r/nA、/r/n起动机驱动齿轮不能与飞轮齿/r/n圈结合/r/nB、/r/n起动机驱动齿轮或飞轮齿圈磨损严重/r/nC、/r/n单向离合器卡滞/r/n/r/n/r/n/r/n/r/nD、/r/n单向离合器打滑/r/n76．/r/n当起动机单向离合器转子在轴上卡滞时，使驱动齿轮不能退出啮合状态，会导致/r/n(/r/n/r/n)/r/n故障/r/n。/r/nA、/r/n起动机运转无力/r/n/r/n/r/nB、/r/n起动机不能停转/r/n/r/n/r/nC/r/n、/r/n起动机空转/r/n/r/n/r/nD、/r/n起动机/r/n不转/r/n77．/r/n如果空调压缩机带轮安装不正确，则可导致/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n压缩机不工作/r/nB、/r/n压缩机振动/r/n太/r/n大/r/n/r/nC/r/n、/r/n离合器不工作/r/nD、/r/n离合器噪声/r/n78．/r/n汽车空调风扇转速太慢/r/n，可能的原因是/r/n(/r/n/r/n)。/r/nA、/r/n调速电阻接触不良/r/n/r/nB、/r/n搭铁线松脱或锈蚀/r/nC/r/n、/r/n风扇皮带打滑/r/nD、/r/n风扇电路短路/r/n79．/r/n如果蒸发器的/r/n(/r/n/r/n)，/r/n凝结在蒸发器表面的水分就会结霜或结冰，严重时将会堵塞蒸发器/r/n的/r/n空气通路，导致制冷效果/r/n降低/r/n。/r/nA、/r/n温度低于/r/n10/r/n℃/r/n/r/n/r/nB、/r/n温度高于/r/n10/r/n℃/r/n/r/n/r/nC/r/n、/r/n温度低于/r/n0/r/n℃/r/n/r/n/r/n80．/r/n以下说法正确的是/r/n(/r/n/r/n)/r/n。/r/nA、/r/n离合器线圈断路可引起压缩机振动太大/r/n/r/nB、/r/n离合器线圈短路可引起压缩机振动太大/r/nC、/r/n皮带松动可引起压缩机振动太大/r/n/r/nD、/r/n制冷剂过少可引起压缩机振动太大/r/n8/r/n1．/r/n/r/n(/r/n/r/n)/r/n是一种可读出所施加的扭矩大小的专用扳手/r/n。/r/nA、/r/n开口扳手/r/n/r/n/r/nB、/r/n扭力扳手/r/n/r/n/r/nC、/r/n套筒扳手/r/n/r/n/r/nD、/r/n梅花扳手/r/n8/r/n2．/r/n我国规定，一般场所的安全用电为/r/n(/r/n/r/n/r/n)/r/n伏/r/n。/r/nA、/r/n12/r/nB、/r/n24/r/nC/r/n、/r/n36/r/nD、/r/n8/r/n3．/r/n液压系统/r/n(/r/n/r/n)/r/n的功用是把输入的机械能转变为油液的压力能/r/n。/r/nA、/r/n动力元件/r/n/r/n/r/nB、/r/n执行元件/r/n/r/n/r/nC、/r/n控制元件/r/n/r/n/r/nD、/r/n辅助元件/r/n8/r/n4．/r/n对于NHA/r/n—/r/n501五气尾气分析仪，可检测的废气成分有HC、CO、CO/r/n2/r/n、/r/n(/r/n/r/n)/r/n和NO/r/n。/r/nA、/r/nNO/r/n2/r/n/r/n/r/n/r/nB、/r/nO/r/n2/r/n/r/nC/r/n、/r/nH/r/n2/r/nO/r/n/r/n/r/n/r/nD、/r/n8/r/n5．/r/n四冲程发动机一个工作循环，曲轴转两圈，活塞在气缸往复/r/n(/r/n/r/n/r/n)/r/n个行程/r/n。/r/nA、/r/n两/r/n/r/n/r/nB、/r/n三/r/n/r/nC/r/n、/r/n四/r/n/r/n/r/nD、/r/n六/r/n8/r/n6．/r/n柴油机/r/n(/r/n/r/n/r/n)/r/n的功用是：降低压柴油升压后定时定量地送至喷油器/r/n。/r/nA、/r/n喷/r/n油泵/r/n/r/nB、/r/n输油泵/r/n/r/n/r/nC、/r/n化油器/r/n/r/n/r/nD、/r/n调速器/r/n8/r/n7．/r/n汽油机电子燃油喷射系统一般由燃油供给系统、空气供给系统和/r/n(/r/n/r/n)/r/n三部分组成/r/n。/r/nA、/r/n混合气形成装置/r/n/r/n/r/nB、/r/n电子控制系统/r/n/r/n/r/nC、/r/n废气排出装置/r/nD、/r/n混合气调节装置/r/n8/r/n8．/r/n低阻型喷油器的电磁线圈电阻为/r/n(/r/n/r/n)/r/n欧姆/r/n。/r/nA、/r/n1/r/n—/r/n3/r/n/r/n/r/nB、/r/n13/r/n—/r/n18/r/nC/r/n、/r/n25/r/n—/r/n36/r/n/r/n/r/nD、/r/n54/r/n—/r/n8/r/n9．/r/n发动机工作时，电控单元根据发动机的转速、温度、空气流量等信号，控制/r/n(/r/n/r/n)/r/n上部的真空度，从而控制排放控制阀的开度/r/n。/r/nA、/r/nEGR阀/r/nB、/r/n怠速控制阀/r/nC/r/n、/r/n活性碳罐/r/nD、/r/n碳罐控制电磁阀/r/n9/r/n0．/r/n在配置电解液时，应用玻璃棒引流，将/r/n(/r/n/r/n)。/r/nA、/r/n水慢慢倒入盐酸中/r/n/r/n/r/nB、/r/n水慢慢倒入硫酸中/r/nC、/r/n盐酸慢慢倒入水中/r/n/r/n/r/nD、/r/n硫酸慢慢倒入水中/r/n9/r/n1/r/n．/r/n关于使用吊装设备的安全操作的描述，不正确的是/r/n(/r/n/r/n/r/n)。/r/nA、/r/n提升重物时，吊钩应位于吊件重心的正上方/r/nB、/r/n起吊和落下时，应平稳可靠，不可过急/r/nC、/r/n确认完好，方可起吊/r/nD、/r/n最大质量不允许超过起动设备的质量/r/n9/r/n2/r/n．/r/n劳动争议当事人对仲裁裁决不服的，可以自收到仲裁裁决书之日起/r/n(/r/n/r/n)/r/n日内向人民法院提起诉讼/r/n。/r/nA、/r/n15/r/n/r/n/r/nB、/r/n30/r/n/r/n/r/nC/r/n、/r/n60/r/n/r/n9/r/n3/r/n．/r/n热敏电阻式冷却液温度传感器与发动机ECU连接，点火开关闭合，用电压表测得传感器端子电压是/r/n(/r/n/r/n)。/r/nA、/r/n参考电压/r/n/r/n/r/nB、/r/n蓄电池电压/r/n/r/n/r/nC、/r/n信号电压/r/n/r/n/r/nD、/r/n基准电压/r/n9/r/n4/r/n．/r/n使用气门正时检验仪和百分表/r/n(/r/n/r/n)/r/n配气相位/r/n。/r/nA、/r/n只能测量进气门/r/nB、/r/n只能测量排气门/r/nC、/r/n可以测量进排气门/r/nD、/r/n不能测量/r/n9/r/n5/r/n．/r/n荧光探伤法属于/r/n(/r/n/r/n/r/n)。/r/nA、/r/n目测检验/r/nB、/r/n经验法检测/r/nC/r/n、/r/n测量法/r/nD、/r/n无损探伤法/r/n9/r/n6/r/n．/r/n缸盖平面度误差的检测需在/r/n(/r/n/r/n/r/n)/r/n位置上测量/r/n。/r/nA/r/n、/r/n3个/r/nB、/r/n4个/r/nC、/r/n5个/r/n/r/nD、/r/n6个/r/n9/r/n7/r/n．/r/n在凸轮的长轴方向测量/r/n(/r/n/r/n/r/n)/r/n位置的凸轮高，检查凸轮磨损/r/n。/r/nA、/r/n1个/r/n/r/n/r/nB、/r/n2个/r/n/r/n/r/nC、/r/n3个/r/n/r/n/r/nD、/r/n中间/r/n98/r/n．/r/n气门座/r/n绞削后，气门与气门座接触面应位于气门座的/r/n(/r/n)。/r/nA、/r/n中部/r/nB、/r/n上部/r/nC、/r/n中上部/r/nD、/r/n中下部/r/n99/r/n．/r/n连杆弯曲变形检验时，三个测点都与平板接触说明/r/n(/r/n/r/n/r/n)。/r/nA、/r/n弯曲/r/n/r/n/r/nB、/r/n扭曲/r/n/r/n/r/nC/r/n、/r/n双重弯曲/r/n/r/n/r/nD、/r/n正常/r/n10/r/n0/r/n．/r/n连杆存在弯扭变形时，测量结果是/r/n(/r/n/r/n)。/r/nA、/r/n只有上测点接触，两下测点与平板间隙不等/r/nB、/r/n两下测点与平板接触，而上测点不接触/r/nC、/r/n上测点与平板接触，而两下测点不接触且间隙相等/r/nD、/r/n三个测点都接触/r/n10/r/n1/r/n．/r/n气缸圆柱度误差计算是气缸不同截面最大测量直径与/r/n(/r/n/r/n/r/n)/r/n直径相减除以2/r/n。/r/nA、/r/n标准/r/n/r/n/r/nB、/r/n最小测量/r/nC/r/n、/r/n活塞最大/r/n/r/n/r/n/r/n/r/nD、/r/n活塞最小/r/n10/r/n2/r/n．/r/n用万用表/r/n(/r/n/r/n/r/n)/r/n测量电控燃油泵电机线圈是否正常/r/n。/r/nA、/r/n电压当/r/n/r/n/r/n/r/nB、/r/n直流电流档/r/nC、/r/n电阻档/r/n/r/n/r/nD、/r/n交流电流档/r/n10/r/n3/r/n．/r/n喷油泵供有正时检查时，提高油压使溢流管出油，按喷油泵工作时的旋转方向转动凸轮轴，到溢流管停止流油瞬间为止即为供油始点。这种方法叫/r/n(/r/n/r/n)。/r/nA、/r/n观察法/r/n/r/n/r/n/r/nB、/r/n溢流法/r/nC/r/n、/r/n经验法/r/n/r/n/r/nD、/r/n压力法/r/n10/r/n4/r/n．/r/n热敏开关的检查方法是将热敏开关放入水中，逐渐加热，当水温达到/r/n(/r/n/r/n/r/n)/r/n℃/r/n时，测量热敏开关接线与外壳的阻值应导通/r/n。/r/nA、/r/n60/r/n—/r/n70/r/n/r/n/r/nB、/r/n70/r/n—/r/n80/r/n/r/nC/r/n、/r/n80/r/n—/r/n90/r/n/r/n/r/nD、/r/n9/r/n3/r/n10/r/n5/r/n．/r/n点火线圈初级线圈检查内容是/r/n()/r/n。/r/nA、/r/n初级线圈的电流/r/nB、/r/n初级线圈的电压/r/nC/r/n、/r/n初级线圈的电容/r/nD、/r/n初级线圈的电阻/r/n10/r/n6/r/n．/r/n检查火花塞时还要检查火花塞的热特性是否与/r/n(/r/n/r/n)/r/n相匹配/r/n。/r/nA、/r/n点火电压/r/n/r/n/r/nB、/r/n点火时间/r/nC/r/n、/r/n点火电流/r/n/r/n/r/nD、/r/n发动机/r/n10/r/n7/r/n．造成发动机/r/n机油变质过快/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n集滤器堵塞/r/nB、/r/n机油泵工作不良/r/nC/r/n、/r/n曲轴箱通风不良/r/n/r/n/r/nD、/r/n机油粘度小/r/n1/r/n08/r/n．/r/n在冷却液不足的条件下，/r/n造成发动机/r/n过热/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n散热器盖的进、排气阀失效/r/nB、/r/n气缸垫装反/r/nC、/r/n点火控制器损坏/r/nD、/r/n起动机损坏/r/n1/r/n09/r/n．/r/n造成发动机CO排放超标的原因可能是/r/n(/r/n/r/n)。/r/nA、/r/n活塞环和气缸壁磨损严重/r/n/r/n/r/nB、/r/n发动机转速传感器故障/r/nC、/r/n爆震/r/n传感器故障/r/n/r/n/r/nD、/r/n进气温度/r/n传感器故障/r/n11/r/n0/r/n．/r/n造成发动机HC排放超标的原因可能是/r/n(/r/n)。/r/nA、/r/n发动机工作温度高/r/n/r/n/r/n/r/n/r/nB、/r/n爆燃/r/nC、/r/n混合气过稀/r/n/r/n/r/n/r/nD、/r/n车速传感器故障/r/n11/r/n1/r/n．/r/n汽车污染物排放的途径可能是/r/n(/r/n/r/n)。/r/nA、/r/n进气系统/r/n/r/n/r/nB、/r/n曲轴箱蒸发泄漏/r/nC/r/n、/r/nEVAP系统/r/nD、/r/n废气涡轮增压系统/r/n11/r/n2/r/n．/r/n某汽油机的进气提前角是20/r/n°/r/n，进气迟后角是40/r/n°/r/n；排气提前角是50/r/n°/r/n，/r/n排气迟后角是1/r/n0/r/n°/r/n。那么该发动机的气门重叠角是/r/n(/r/n)/r/n。/r/nA、/r/n30/r/n°/r/n/r/n/r/nB、/r/n60/r/n°/r/n/r/nC/r/n、/r/n90/r/n°/r/n/r/n/r/nD、/r/n180/r/n°/r/n11/r/n3/r/n．/r/n造成发动机机油压力过低的原因可能是/r/n(/r/n/r/n)。/r/nA、/r/n轴颈与轴承/r/n的配合间隙过小/r/n/r/n/r/nB、/r/n机油粘度高/r/nC、/r/n混合气过稀/r/n/r/n/r/nD、/r/n机油泵齿轮磨损严重/r/n11/r/n4/r/n．(/r/n/r/n)是诊断/r/n发动机机油压力过低/r/n故障的正确做法。/r/nA、/r/n检/r/n查气门间隙B、检查/r/n传感器/r/n是否/r/n损坏/r/nC、检查/r/n混合气浓度/r/nD、检/r/n查点火提前角/r/n11/r/n5/r/n．/r/n二级维护前必须检查变速器/r/n(/r/n)/r/n是否灵活、齿轮是否过紧、松旷、有异响，互锁、自锁装置应有效，不乱档、跳档/r/n。/r/nA、/r/n挂档/r/n/r/n/r/nB、/r/n换档/r/n/r/n/r/nC、/r/n摘档/r/n/r/n/r/nD、/r/n倒档轴/r/n11/r/n6/r/n．/r/n二级维护前应对车辆行驶稳定性进行检查，其中包括车辆行驶在平直路上能保持直线行驶，转向后能/r/n(/r/n/r/n)。/r/nA、/r/n偏转一定角度/r/nB、/r/n自动回正/r/nC、/r/n按照转向角度行驶/r/nD、/r/n偏移规定角度/r/n11/r/n7/r/n．/r/n手动变速器同步器的主要形式有常压式、惯性式、/r/n(/r/n/r/n)/r/n等种类/r/n。/r/nA、/r/n被动式/r/n/r/n/r/nB、/r/n整合式/r/n/r/n/r/nC、/r/n间歇式/r/n/r/n/r/nD、/r/n自行增力式/r/n1/r/n08/r/n．/r/n变速器中，滚动轴承与轴承孔的配合间隙一般为/r/n(/r/n/r/n)/r/n/r/nmm。/r/nA、/r/n0.05~0.15/r/n/r/n/r/nB、/r/n0.10~/r/n0.15/r/n/r/n/r/nC/r/n、/r/n0.05~0.10/r/n/r/n1/r/n1/r/n9/r/n．/r/n主减速器的作用是改变动力传递方向、/r/n(/r/n/r/n)/r/n、增大转矩/r/n。/r/nA、/r/n减低转速/r/n/r/n/r/nB、/r/n提高转速/r/n/r/nC/r/n、/r/n实现差速/r/n/r/n/r/nD、/r/n实现左右两轮的转速不同/r/n12/r/n0/r/n．/r/n半轴齿轮轴颈磨损超过/r/n(/r/n/r/n)mm/r/n，或与差速器壳孔配合间隙超过/r/n0.5mm/r/n时应对半轴轴颈和差速器壳孔进行相应的修理/r/n。/r/nA、/r/n0.5/r/n/r/n/r/nB、/r/n0./r/n2/r/n5/r/n/r/n/r/nC/r/n、/r/n12/r/n1/r/n．/r/n传动轴轴管与万向节叉、花键轴应为/r/n(/r/n)/r/n配合/r/n。/r/nA、/r/n间隙/r/n/r/n/r/nB、/r/n过盈/r/n/r/n/r/nC、/r/n预紧/r/n/r/n/r/n/r/nD、/r/n公差/r/n12/r/n2/r/n．/r/n转向器按照传动副结构形式分为球面蜗杆滚轮式、蜗杆曲柄销式、循环球式和/r/n(/r/n)。/r/nA、/r/n曲柄指销式/r/n/r/n/r/nB、/r/n蜗杆齿扇式/r/n/r/n/r/nC、/r/n蜗杆指销式/r/nD、/r/n齿轮齿条式/r/n12/r/n3/r/n．/r/n悬架有不同的结构形式，但都是由弹性元件、减振器和/r/n(/r/n/r/n)/r/n三部分组成/r/n。/r/nA、/r/n导向机构/r/n/r/n/r/nB、/r/n导轨/r/n/r/nC/r/n、/r/n导向块/r/n/r/n/r/nD、/r/n扭杆/r/n12/r/n4/r/n．/r/n前轮定位的主要参数包括主销后倾角、主销内倾角、前轮外倾角和/r/n(/r/n/r/n)。/r/nA、/r/n推进角/r/n/r/n/r/nB、/r/n前轮前束值/r/n/r/n/r/nC、/r/n左右轮距/r/n/r/n/r/nD、/r/n前后轴距/r/n12/r/n5/r/n．/r/n主销后倾角/r/n保证了汽车进行稳定的/r/n(/r/n/r/n/r/n)/r/n行驶/r/n。/r/nA、/r/n直线/r/n/r/n/r/nB、/r/n曲线/r/n/r/n/r/nC、/r/n绕规定中心点/r/n/r/n/r/nD、/r/n转向曲线/r/n12/r/n6/r/n．/r/n液压鼓式制动器一般由制动鼓、制动底板、制动蹄、/r/n(/r/n/r/n/r/n)/r/n、制动轮缸、支承销组成/r/n。/r/nA、/r/n制动钳/r/nB、/r/n分缸活塞密封圈C、制动蹄回位弹簧/r/nD、/r/n制动总泵/r/n1/r/n27/r/n．/r/n制动防抱死系统（ABS）的工作过程中，车轮制动力的调节分为制动力压力增长、保持、/r/n(/r/n/r/n)/r/n三个阶段/r/n。/r/nA、/r/n降低/r/n/r/nB、/r/n缩小/r/nC/r/n、/r/n放大/r/nD、/r/n缓冲/r/n128．/r/n传动轴中间支撑轴承固定螺栓松旷异响的现象为/r/n()。/r/nA、/r/n汽车起步或行驶中，始终有明显的/r/n“/r/n咔啦/r/n”/r/n异响，并伴有/r/n振抖/r/nB、/r/n行驶中，突然改变速度时，出现一种金属敲击声/r/nC、/r/n汽车行驶时，声响随车速增大而增大，且声音浑浊、沉闷而连续/r/nD、/r/n行驶中变换车速和油门试验，出现/r/n“/r/n咔啦、咔啦/r/n”/r/n的撞击声/r/n129．/r/n出现/r/n()/r/n将造成行车中突然出现有节奏的金属敲击声/r/n。/r/nA、/r/n啮合印痕不符合要求/r/n/r/n/r/nB、/r/n主减速器主、从动齿轮轮齿折断/r/nC、/r/n差速器圆锥滚子轴承松旷/r/nD、/r/n半轴齿轮花键槽与半轴配合松旷/r/n130．/r/n汽车转弯时有前桥异响的原因/r/n()。/r/nA、/r/n球叉式等速万向节不良/r/nB、/r/n前束失准/r/nC、/r/n车轮外倾角不准/r/nD、/r/n横拉杆调整不当/r/n131．/r/n造成汽车行驶时有异响，滑行时也不消失的原因为/r/n()。/r/nA、/r/n圆锥主、从动齿轮啮合间隙过小/r/nB、/r/n圆锥主、从动齿轮啮合间隙过大/r/nC、/r/n圆锥主、从动齿轮折断/r/nD、/r/n半轴齿轮花键槽与半轴配合松旷/r/n132．/r/n出现/r/n()/r/n会造成汽车上坡发响/r/n。/r/nA、/r/n后桥某一部位的齿轮啮合间隙过小/r/nB、/r/n后桥某一部位的齿轮啮合间隙过大/r/nC、/r/n齿轮啮合印痕不当/r/n/r/n/r/nD、/r/n齿轮轴支撑轴承松旷/r/n133．/r/n齿轮花键孔与轴配合松旷，造成的现象为/r/n()。/r/nA、/r/n在任何档位，任何车速下均有/r/n“/r/n咝、咝/r/n”/r/n声，并伴有过热现象/r/nB、/r/n汽车起步或变换车速时，发出/r/n“/r/n咯咯/r/n”/r/n的撞击声，且正常匀速行驶时，响声减弱或消失/r/nC、/r/n变速器空档位置，发动机怠速运转，变速器发出均匀的响声，踩下离合器踏板响声消失/r/nD、/r/n车速急剧变化，响声增大，而车速相对稳定，响声消失/r/n/r/n134．/r/n属于转向传动机构故障造成的转向沉重的为()。/r/nA、转向节主销与衬套配合间隙过大B、转向节臂变形/r/nC、前轮轮毂轴承调整过紧D、前轴变形/r/n135．/r/n汽车转向沉重，顶起前桥，转动方向盘，感到转向盘仍然沉重，拆下转向摇臂与直拉杆的连接，转向变轻，则说明故障在()。/r/nA、前桥B、车轮C、转向器D、转向传动装置/r/n136．/r/n属于制动器故障引起的制动拖滞为/r/n()。/r/nA、/r/n制动蹄与制动鼓间隙调整不当，制/r/n动踏板放松后仍局部摩擦/r/nB、/r/n左右制动蹄与制动鼓接触面积不一/r/nC、/r/n左右车轮轮缸的技术状况不一，起作用时间不同/r/nD、/r/n单边制动销与制动蹄配合紧/r/n137．/r/n个别凸缘或万向节十字轴轴承磨损松旷的现象为/r/n()。/r/nA、/r/n起步或行驶中，始终有明显的/r/n“/r/n咔啦/r/n”/r/n异响，并伴有抖动/r/nB、/r/n行驶中，声音杂乱无章，时而出现金属敲击声/r/nC、/r/n汽车行驶中突然改变速度，出现一种金属敲击声/r/nD、/r/n起步或变换车速时，有明显的撞击声，低速比高速明显/r/n138．/r/n蓄电池容量下降快的主要因素是/r/n()。/r/nA、/r/n放电电流过小/r/nB、/r/n放电电流过大/r/nC、/r/n电解液密度稍高/r/nD、/r/n电解液温度高/r/n139．/r/n连接歧管压力表时应注意/r/n()。/r/nA、/r/n蓝/r/n色软管接低压侧，红色软管接高压侧/r/nB、/r/n蓝色软管接高压侧，红色软管接低压侧/r/nC、/r/n一定用工具紧固加注软管/r/nD、/r/n有快接接头的即快速接上即可/r/n140．/r/n解体起动机取出起动机电枢轴时，必须先拆下电枢轴上的/r/n()。/r/nA、/r/n止推垫圈/r/n/r/n/r/nB、/r/n卡簧/r/n/r/n/r/nC、/r/n复位弹簧/r/n/r/n/r/nD、/r/n拨叉/r/n141．/r/n发电机拆装注意事项，下列说法错误的是/r/n()。/r/nA、/r/n不能将后端盖单独分离/r/n/r/n/r/nB、/r/n不能将前端盖单独分离/r/nC、/r/n发电机/r/n“/r/nB/r/n”/r/n接柱与外壳必须绝缘/r/nD、/r/n整流器的三个正极管与外壳必须绝缘/r/n142．/r/n用万用表的电阻档对发电机二极管进行检测，若正、反向阻值都大，则说明二极管/r/n()。/r/nA、/r/n良好/r/n/r/n/r/nB、/r/n断路/r/n/r/n/r/nC、/r/n短路/r/n/r/n/r/nD/r/n、搭铁不良/r/n143．/r/n高压侧加注的制冷剂进入制冷系统中是/r/n()/r/n态/r/n。/r/nA、/r/n液/r/n/r/n/r/nB、/r/n气/r/n/r/n/r/nC、/r/n气液混合/r/n/r/n/r/nD、/r/n固/r/n144．/r/n检测电气仪表，缺乏检测仪器时，可与标准仪表进行对比/r/n()。/r/nA、/r/n电流表的示值误差应小于/r/n±/r/n20%/r/nB、/r/n机油压力表的示值误差，油压为0.2Mpa时，应大于/r/n±/r/n10%/r/nC、/r/n机油压力表的示值误差，油压为0.5Mpa时，应大于/r/n±/r/n20%/r/nD、/r/n只有电热式水温表才可以采用对比的方法/r/n145．/r/n起动机空转时，有严重的碰撞齿轮的声音，说明/r/n()。/r/nA、/r/n起动机驱动齿轮不能与飞轮轮齿啮合/r/nB、/r/n飞轮轮齿或起动机驱动齿轮严重磨损/r/nC、/r/n单/r/n向离合器在转子轴上卡滞/r/n/r/n/r/nD、/r/n单向离合器打滑/r/n146．/r/n发动机不能起动，拔下火花塞端部的分缸线对缸体试火，起动发动机，观察高压火。若火花正常，则应/r/n()。/r/nA、/r/n检查分电器上的总高压线/r/n/r/n/r/nB、/r/n检查火花塞电极是否烧蚀，绝缘体是否有破裂/r/nC、/r/n检查信号发生器/r/nD、/r/n检查点火线圈/r/n147．/r/n发动机起动后，松开点火开关，若起动机驱动齿轮与飞轮齿圈无法分离/r/n，可导致/r/n()/r/n故障/r/n。/r/nA、/r/n起动机不转/r/n/r/n/r/nB、/r/n起动机空转/r/nC、/r/n起动机运转无力/r/nD、/r/n起动机不能停转/r/n148．/r/n关于空调离合器失灵的原因，下列说法不正确的是/r/n()。/r/nA、/r/n压缩机振动/r/nB、/r/n压缩机损坏/r/nC、/r/n离合器电磁线圈短路/r/nD、/r/n电源电压过低/r/n149．/r/n汽车空调风扇转速太慢，可能的原因是/r/n()。/r/nA、/r/n熔断器熔断/r/n/r/n/r/nB、/r/n风扇电路接触不良或导线漏电/r/nC、/r/n风扇电路断路/r/n/r/n/r/nD、/r/n接地线松脱或锈蚀/r/n150/r/n．/r/n打开冷气后，管道和蒸发器结霜，制冷压缩机不停转的原因是/r/n()。/r/nA、/r/n膨胀阀损坏/r/nB、/r/nEPR阀卡在最小开启位置/r/nC、/r/n蒸发器温度传感器的导线插头松动，造成断路/r/nD、/r/n蒸发器温度传感器的导线插头松动，造成短路/r/n/r/n15/r/n1.三角锉属于（/r/n/r/n）的一种。/r/n/r/nA、什锦锉刀/r/n/r/nB、特种锉刀/r/n/r/nC、整形锉刀/r/n/r/nD、普通锉刀/r/n/r/n15/r/n2.属基孔制过盈配合的是（/r/n/r/n）。/r/n/r/nA、/r/nφ/r/n40/r/nH7/r/ng6/r/n/r/n/r/nB、/r/nφ/r/n40/r/nH7/r/nh6/r/n/r/n/r/nC、/r/nφ/r/n40/r/nH7/r/nk6/r/n/r/n/r/nD、/r/n/r/n15/r/n3.（/r/n/r/n）描述了正弦量的初始状态。/r/n/r/nA、频率/r/n/r/nB、周期/r/n/r/nC、角频率/r/n/r/nD、初相位/r/n/r/n15/r/n4.在以下液压控制阀中，能够控制和调节液压系统中液流流量的阀是（/r/n/r/n）。/r/n/r/nA、溢流阀/r/n/r/nB、节流阀/r/n/r/nC、换向阀D、顺序阀/r/n/r/n155/r/n.转向轮定位是指转向轮、转向节和（/r/n/r/n）三者之间具有一定的安装相对位置。/r/n/r/nA、车桥/r/n/r/n/r/n/r/nB、前轴/r/n/r/nC、悬架