汽車修理工中級理論復(fù)習題3

PAGE/r/nPAGE/r/n12/r/n汽車修理工/r/n中/r/n級理論知識復(fù)習題/r/n一、單項選擇題（選擇一個正確的答案，將相應(yīng)的字母填入題內(nèi)的括號中。每題1分。）/r/n1．/r/n三相電源的三角形連接也稱為/r/n()。/r/nA、/r/n三相四線制供電電路/r/n/r/n/r/nB、/r/n三相三線制供電電路/r/nC、/r/n四相三線制供電電路/r/n/r/n/r/nD、/r/n四相四線制供電電路/r/n2．/r/n液壓系統(tǒng)中的動力元件/r/n——/r/n液壓泵的功用是把輸入的機械能轉(zhuǎn)變?yōu)橛鸵旱?r/n(/r/n/r/n)。/r/n/r/n/r/nA、/r/n動能/r/n/r/n/r/nB、/r/n勢能/r/n/r/n/r/nC、/r/n壓力能/r/n/r/n/r/nD、/r/n化學能/r/n3．/r/n關(guān)于使用千斤頂，以下說法錯誤/r/n的是(/r/n/r/n)。/r/nA、/r/n頂升前，用/r/n檔塊將車輪塞好/r/n/r/n/r/nB、/r/n可以同時使用多個千斤頂/r/n/r/nC、/r/n千斤頂舉升車輛的位置應(yīng)正確/r/n/r/n/r/nD、/r/n不能在千斤頂支撐的車下作業(yè)/r/n4．/r/n火花塞套筒在使用時，應(yīng)根據(jù)火花塞的裝配位置和火花塞六角尺寸，選用不同高度和/r/n(/r/n/r/n)/r/n的火花塞套筒/r/n。/r/nA、/r/n徑向尺寸/r/n/r/n/r/nB、/r/n軸向尺寸/r/n/r/n/r/nC、/r/n寬度/r/n/r/n/r/nD、/r/n長度/r/n5．/r/n利用通用型解碼器進行故障碼的調(diào)取，以下操作不正確的是/r/n(/r/n/r/n)。/r/nA、/r/n選擇測試車型的軟件測試卡/r/n/r/n/r/n/r/nB、/r/n解碼器插頭插入汽車診斷座/r/n/r/nC/r/n、/r/n解碼器電源插頭插入汽車電煙器中/r/n/r/n/r/nD、/r/n起動發(fā)動機/r/n6．/r/n以下部件中，屬于汽油機電子燃油噴射系統(tǒng)中控制裝置的是/r/n(/r/n/r/n)。/r/nA、/r/n空氣流量計/r/n/r/n/r/nB、/r/n節(jié)氣門/r/n/r/n/r/nC、/r/n油壓調(diào)節(jié)器/r/n/r/n/r/nD、/r/n水溫傳感器/r/n7．/r/n汽油機電子燃油噴射系統(tǒng)中油壓調(diào)節(jié)器的功用是：使燃油供給系統(tǒng)的壓力與進氣管壓力/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之積/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液壓制動系統(tǒng)一般由制動踏板、推桿、/r/n(/r/n/r/n)/r/n、貯液室、油管及制動輪缸等組成/r/n。/r/nA、/r/n制動主缸/r/nB、/r/n制動動力缸/r/nC、/r/n制動液壓缸/r/nD、/r/n制動分泵/r/n9．/r/n氣壓制動系統(tǒng)主要由空氣壓縮機、貯氣筒、/r/n()/r/n和制動氣室等組成/r/n。/r/nA、/r/n制動主缸/r/n/r/n/r/nB、/r/n制動輪缸/r/n/r/n/r/nC、/r/n制動控制閥/r/n/r/n/r/nD、/r/n進出油閥/r/n10．/r/n利用氧傳感器進行閉環(huán)控制，從而實現(xiàn)/r/n(/r/n/r/n)/r/n的最佳控制/r/n。/r/nA、/r/n進氣提前角/r/n/r/n/r/nB、/r/n燃油噴射量/r/n/r/n/r/nC、/r/n排氣遲后角/r/n/r/n/r/nD、/r/n進氣量/r/n11/r/n．/r/n確定曲軸轉(zhuǎn)速和曲軸位置主要目的是確定/r/n(/r/n/r/n)。/r/nA、/r/n進氣提前時間和點火時間/r/n/r/n/r/nB、/r/n點火時間和噴油時間/r/n/r/nC、/r/n噴油時間和排氣遲后時間/r/nD、/r/n進氣提前時間和排氣遲后時間/r/n12．/r/n以下關(guān)于電控單元的描述，不正確的是/r/n(/r/n/r/n)。/r/nA、/r/n包括硬件和軟件兩部分/r/n/r/n/r/nB、/r/n軟件是電控單元中所有實際裝置的總稱/r/nC、/r/n可以向傳感器發(fā)出5V的工作電壓/r/n/r/n/r/nD、/r/n具有自我修正功能/r/n13．/r/nRAM稱為/r/n(/r/n/r/n)。/r/nA、/r/n只讀存儲器/r/nB、/r/n隨機存儲器/r/n/r/nC/r/n、/r/nA/D轉(zhuǎn)換器/r/nD、/r/n可改寫的只讀存儲器/r/n14．/r/n關(guān)/r/n于防止由于油箱蓋丟失造成的蒸發(fā)污染物超標和燃油溢出的描述，不/r/n正確的是(/r/n/r/n)。/r/nA、/r/n可拿掉的自動開啟和關(guān)閉的油箱蓋/r/nB/r/n、從設(shè)計結(jié)構(gòu)上防止油箱蓋丟失所造成的蒸發(fā)污染物超標/r/nC/r/n、繩索拴住的或鏈條拴住的油箱蓋/r/nD、/r/n油箱蓋鎖和汽車點火使用同一把鑰匙，這時，油箱蓋只有鎖上時才能拔掉鑰匙/r/n/r/n15．下/r/n面是排放污染的防止措施，不/r/n正確的是(/r/n/r/n)。/r/nA、/r/n改進內(nèi)燃機的結(jié)構(gòu)/r/nB、/r/n采用高壓縮比的發(fā)動機/r/nC、/r/n使汽油完全不燃燒/r/nD、/r/n使用電力驅(qū)動車輛/r/n16．/r/n汽車修理企業(yè)全部工作質(zhì)量的綜合性指標是/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一次檢驗合格率/r/n/r/nD、/r/n最終檢驗合格率/r/n1/r/n7/r/n．/r/n熱敏電阻式冷卻液溫度傳感器在不同溫度下/r/n(/r/n/r/n)/r/n會發(fā)生變化/r/n。/r/nA、/r/n只有電阻值/r/nB、/r/n只有電壓值/r/nC/r/n、/r/n電阻和電壓值/r/nD、/r/n電阻和電壓值都不/r/n18．/r/n測量進氣管真空度時應(yīng)在/r/n(/r/n/r/n)/r/n處測量/r/n。/r/nA、/r/n空氣濾清器前/r/n/r/n/r/nB、/r/n空氣濾清器后/r/n/r/n/r/nC、/r/n節(jié)氣門前/r/n/r/n/r/nD、/r/n節(jié)氣門后/r/n19．/r/n背隙值是活塞環(huán)槽深度和環(huán)寬兩者之/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積/r/nD、/r/n商/r/n20．/r/n測量氣門桿與導(dǎo)管配合間隙時，百分表指針擺幅值/r/n(/r/n/r/n)/r/n為其配合間隙/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測量凸輪軸軸向間隙，/r/n(/r/n/r/n)/r/n撬動凸輪軸并用百分表測量/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圓周/r/n22．/r/n測量氣門桿直線度時，轉(zhuǎn)動氣門一圈，百分表最大讀數(shù)與最小讀數(shù)的/r/n(/r/n/r/n)/r/n即為氣門桿直線度/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氣缸同一截面最大與最小測量直徑相減除以2得出的是/r/n(/r/n/r/n)。/r/nA、/r/n氣缸垂直度/r/n/r/n/r/nB、/r/n氣缸圓柱度/r/n/r/n/r/nC、/r/n氣缸圓度/r/n/r/n/r/nD、/r/n氣缸錐度/r/n24．/r/n氣缸圓柱度誤差計算是氣缸不同截面最大測量直徑與/r/n(/r/n/r/n)/r/n直徑相減除以2/r/n。/r/nA、/r/n標準/r/n/r/n/r/n/r/n/r/nB、/r/n最小測量/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缸柴油機的各缸供油間隔角誤差不超過/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下列說法正確的是/r/n(/r/n/r/n)。/r/nA、/r/n接通點火開關(guān)，檢查霍爾傳感器/r/n“/r/n+/r/n”/r/n端子與/r/n“/r/n﹣/r/n”/r/n端子的電壓來判斷霍爾傳感器線路/r/n/r/nB、/r/n接通點火開關(guān)，檢查霍爾傳感器/r/n“/r/n+/r/n”/r/n端子與/r/n“/r/n﹣/r/n”/r/n端子的電阻來判斷霍爾傳感器線路/r/nC、/r/n接通點火開關(guān)，檢查霍爾傳感器/r/n“/r/n+/r/n”/r/n端子與/r/n“/r/n﹣/r/n”/r/n端子的電流來判斷霍爾傳感器線路/r/n/r/n/r/nD、/r/n接通點火開關(guān)，檢查霍爾傳感器/r/n“/r/n+/r/n”/r/n端子與/r/n“/r/n﹣/r/n”/r/n端子的磁場來判斷霍爾傳感器線路/r/n27．/r/n/r/n(/r/n/r/n)/r/n是診斷發(fā)動機機油壓力過高故障的正確做法/r/n。/r/nA、/r/n檢查低壓電路是否斷路/r/n/r/n/r/nB、/r/n檢查主軸頸與主軸承配合間隙是否過小/r/n/r/nC、/r/n檢查氣門間隙/r/n/r/n/r/nD、/r/n檢查混合氣是否/r/n過/r/n濃/r/n28．(/r/n/r/n)是診斷發(fā)動機/r/n機油變質(zhì)過快/r/n故障的正確做法。/r/nA、檢查/r/n活塞與氣缸壁之間的間隙/r/n是否/r/n過大/r/n/r/n/r/nB、檢查/r/n空氣濾清器/r/n是否/r/n堵塞/r/nC、檢查/r/n集濾清器是否堵塞/r/n/r/n/r/nD、檢查/r/n機油泵的泵油情況/r/n29．/r/n在冷卻液充足的條件下，/r/n造成發(fā)動機/r/n過熱/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n機油泵損壞/r/n/r/n/r/nB、/r/n冷卻水套內(nèi)水垢過多/r/nC、/r/n點火控制器損壞/r/nD、/r/n起動機損壞/r/n30．(/r/n/r/n)是診斷發(fā)動機/r/n突然過熱/r/n故障的正確做法。/r/nA、檢查/r/n分電器狀況/r/n/r/n/r/nB、檢查/r/n混合氣濃度/r/n/r/nC/r/n、檢查/r/n氣缸墊/r/n是否/r/n損壞/r/n/r/n/r/nD、檢查/r/n點火提前角是否過小/r/n31．/r/n汽車污染物排放的途徑可能是/r/n(/r/n/r/n)。/r/nA、/r/n進氣系統(tǒng)/r/n/r/n/r/n/r/n/r/nB、/r/n閉環(huán)系統(tǒng)/r/n/r/n/r/n/r/nC/r/n、/r/n燃油箱蒸發(fā)泄漏/r/n/r/n/r/nD、/r/n廢氣渦輪增壓系統(tǒng)/r/n32．(/r/n/r/n)是診斷發(fā)動機冷/r/n卻液消耗異常/r/n故障的正確做法。/r/nA、/r/n檢查百葉窗/r/n/r/n/r/nB、/r/n檢查風扇離合器狀況/r/n/r/nC、檢查/r/n節(jié)溫器是否損壞/r/n/r/n/r/n/r/n/r/nD/r/n、檢查散熱器蓋處有無水溢出/r/n33．造成發(fā)動機/r/n冷卻液溫度過低/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n混合氣過稀/r/n/r/n/r/nB、/r/n散熱器堵塞/r/nC、/r/n傳感器損壞/r/n/r/n/r/nD、/r/n混合氣過濃/r/n34．(/r/n/r/n)是診斷發(fā)動機/r/n冷卻液溫度過低/r/n故障的正確做法。/r/nA、檢查/r/n分電器狀況/r/n/r/n/r/n/r/nB、/r/n檢查水泵軸與葉輪是否松脫/r/n/r/nC/r/n、/r/n打開水箱蓋，檢查冷卻液是否進行循環(huán)/r/n/r/n/r/nD、檢/r/n查/r/n點火提前角/r/n35．造成發(fā)動機/r/n機油壓力過低/r/n的原因可能是/r/n（/r/n/r/n/r/n）/r/n。/r/nA、/r/n軸頸與軸承的配合間隙小/r/n/r/nB、/r/n機油粘度高/r/n/r/nC/r/n、/r/n集濾器堵塞/r/nD、/r/n混合氣過濃/r/n36．(/r/n/r/n)是診斷發(fā)動機/r/n機油壓力過低/r/n故障的/r/n正/r/n確做法。/r/nA、檢查/r/n機油液面高/r/n/r/nB、檢查/r/n氣缸壓縮壓力/r/n/r/nC/r/n、檢查/r/n混合氣濃度/r/n/r/nD、/r/n檢查點火提前角/r/n37．/r/n轉(zhuǎn)向輪定位主要是指前輪前束、/r/n(/r/n/r/n)/r/n、主銷內(nèi)傾和主銷后傾等參數(shù)/r/n。/r/nA、/r/n推進角/r/n/r/n/r/nB、/r/n退縮角/r/nC、/r/n輪距/r/n/r/n/r/nD、/r/n前輪外傾/r/n38．/r/n二級維護前應(yīng)檢查車輪輪轂軸承的松緊程度、/r/n(/r/n/r/n)/r/n是否齊全、緊固可靠，車輪偏擺、徑向跳動量是否符合規(guī)定/r/n。/r/nA、/r/n氣嘴保護帽/r/nB、/r/n輪胎平衡塊/r/nC、/r/n輪胎螺栓/r/n/r/nD、/r/n輪轂軸承鎖止裝置/r/n39．/r/nGB7258中規(guī)定汽車、汽車列車、無軌電車及四輪農(nóng)用運輸車前軸軸制動力大于或等于軸荷的/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手動齒輪式變速器的基本結(jié)構(gòu)包括變速機構(gòu)和/r/n(/r/n/r/n)/r/n兩部分/r/n。/r/nA、/r/n自鎖裝置/r/n/r/n/r/nB、/r/n操縱機構(gòu)/r/n/r/n/r/nC、/r/n換檔桿/r/n/r/n/r/nD、/r/n撥叉/r/n41．/r/n進行自動變速器失速試驗只能檢查到前進1檔和倒擋的/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結(jié)構(gòu)/r/n/r/n/r/nC、/r/n傳力/r/n/r/n/r/nD、/r/n執(zhí)行/r/n42．/r/n差速器用以連接左右半軸、可使兩側(cè)車輪以不同/r/n(/r/n/r/n)/r/n旋轉(zhuǎn)同時傳遞扭矩/r/n。/r/nA、/r/n線速度/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轉(zhuǎn)矩/r/n43．/r/n普通錐齒輪/r/n差速器/r/n由兩個或四個圓錐行星齒輪、行星齒輪軸、兩個/r/n(/r/n/r/n)/r/n齒輪和左右差速器殼等組成/r/n。/r/nA、/r/n圓錐/r/n/r/n/r/nB、/r/n雙曲線/r/n/r/n/r/nC、/r/n直齒/r/n/r/n/r/nD、/r/n圓錐半軸/r/n44．/r/n汽車萬向節(jié)有剛性、/r/n撓性和/r/n(/r/n/r/n)/r/n三種/r/n。/r/nA、/r/n球籠/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十字軸/r/n45．/r/n獨立懸架的常見形式有/r/n(/r/n/r/n)/r/n式懸架、縱向擺臂式懸架和燭式懸架/r/n。/r/nA、/r/n橫向擺臂/r/n/r/n/r/nB、/r/n雙擺臂/r/n/r/n/r/nC、/r/n多連桿/r/n/r/n/r/nD、/r/n扭桿/r/n46．/r/n主銷后傾角是/r/n(/r/n/r/n)/r/n在縱向平面內(nèi)與通過前輪中心線的垂線間的夾角/r/n。/r/nA、/r/n前軸軸線/r/n/r/n/r/nB、/r/n主銷軸線/r/n/r/n/r/nC、/r/n車身中心線/r/n/r/n/r/n/r/nD、/r/n前梁中心線/r/n/r/n/r/n47．/r/n主銷內(nèi)傾角是汽車橫向平面內(nèi)主銷軸線與/r/n(/r/n/r/n)/r/n間的夾角/r/n。/r/nA、/r/n垂線/r/n/r/n/r/nB、/r/n車輪軸向垂直平面/r/n/r/n/r/nC、/r/n前軸軸線/r/n/r/n/r/nD、/r/n前梁軸線/r/n48．/r/n氣壓制動系統(tǒng)中，制動控制閥有單管路復(fù)合制動控制閥、/r/n()/r/n和并列雙腔膜片式制動控制閥等類型/r/n。/r/nA、/r/n單/r/n腔分動式制/r/n動控制閥/r/n/r/n/r/nB、/r/n并聯(lián)雙腔膜片式制動控制閥/r/n/r/nC、/r/n串聯(lián)雙腔活塞式制動控制閥/r/n/r/n/r/nD、/r/n串聯(lián)雙腔膜片式制動控制閥/r/n49．/r/n制動鼓的工作表面如有寬而深的溝槽、圓度超過/r/n0.25mm/r/n，制動鼓與輪轂軸承座孔的不同軸度大于/r/n(/r/n/r/n)/r/nmm時，應(yīng)進行鏜削/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盤式制動器有鉗盤式、/r/n(/r/n/r/n)/r/n和蹄盤式三種/r/n。/r/nA、/r/n浮盤式/r/n/r/n/r/nB、/r/n浮鉗式/r/n/r/n/r/nC、/r/n平衡式/r/n/r/n/r/nD、/r/n全盤式/r/n51．/r/n盤式制動器一般由制動盤和/r/n(/r/n/r/n)/r/n組成/r/n。/r/nA、/r/n制動鉗（蹄）/r/n/r/n/r/nB、/r/n支承銷/r/n/r/n/r/nC、/r/n制動主缸/r/n/r/nD、/r/n自調(diào)裝置/r/n/r/n52．/r/n常見的駐車制動器有鼓式、/r/n(/r/n/r/n)/r/n和帶式三種/r/n。/r/nA、/r/n盤式/r/n/r/n/r/nB、/r/n蹄盤式/r/n/r/n/r/nC、/r/n鉗盤式/r/n/r/nD、/r/n浮鉗式/r/n/r/n53．/r/n出現(xiàn)/r/n(/r/n/r/n)/r/n引起異響的現(xiàn)象為在起步時出現(xiàn)/r/n“/r/n咣當/r/n”/r/n一聲響，或聲響較復(fù)雜，/r/n如在緩坡上向后倒車時，出現(xiàn)/r/n“/r/n嘎巴、嘎巴/r/n”/r/n的連續(xù)聲/r/n。/r/nA、/r/n萬向節(jié)十字軸滾針折斷、碎裂/r/n/r/n/r/nB、/r/n傳動軸萬向節(jié)叉等速排列破壞/r/nC、/r/n中間支承軸承散架/r/n/r/n/r/n/r/nD、/r/n中間支承軸承內(nèi)圈過盈配合松曠/r/n54．/r/n出現(xiàn)/r/n(/r/n/r/n)/r/n引起異響的現(xiàn)象為汽車起步或變換車速時，有明顯的撞擊聲，低速比高速明顯/r/n。/r/nA、/r/n凸緣或萬向節(jié)十字軸軸承磨損松曠/r/n/r/n/r/nB、/r/n傳動軸中間支承軸承內(nèi)圈過盈配合松曠/r/nC、/r/n中間軸承支承架固定螺栓松曠/r/nD、/r/n萬向節(jié)十字軸滾針折斷、碎裂/r/n55．/r/n出現(xiàn)/r/n(/r/n/r/n)/r/n引起異響的現(xiàn)象為汽車起步或行駛中，始終有明顯的/r/n“/r/n咔啦/r/n”/r/n意向，并伴有振動抖/r/n。/r/nA、/r/n傳動軸中間支承軸承內(nèi)圈過盈配合松曠/r/nB、/r/n中間/r/n支承/r/n軸承固定螺栓松曠/r/n/r/nC/r/n、/r/n傳動軸萬向節(jié)叉等速排列破壞/r/n/r/n/r/nD、/r/n中間支承軸承散架/r/n56．/r/n出現(xiàn)()引起異響的現(xiàn)象為/r/n在/r/n汽車/r/n行駛中，聲音雜亂無規(guī)則，時而出現(xiàn)金屬敲擊聲/r/n。/r/nA、/r/n凸緣或萬向節(jié)十字軸軸承磨損松曠/r/n/r/n/r/nB、/r/n傳動軸中間支承軸承內(nèi)圈過盈配合松曠/r/n/r/nC/r/n、/r/n傳動軸萬向節(jié)叉等速排列破壞/r/n/r/n/r/nD、/r/n中間支承軸承散架/r/n/r/n57．/r/n出現(xiàn)第一軸前軸承發(fā)響的現(xiàn)象為/r/n(/r/n/r/n)。/r/nA、/r/n汽車行駛時，直接檔無異響，而其他檔位都有異響/r/n/r/nB、/r/n變速器在空檔位置、發(fā)動機怠速運轉(zhuǎn)時，響聲并不明顯，但在汽車起步或換檔踩離合器的瞬間發(fā)出/r/n“/r/n卡喇/r/n”/r/n聲，抬起離合器踏板響聲消失/r/nC/r/n、/r/n汽車在掛檔或換檔時，發(fā)出/r/n“/r/n嘎嘎/r/n”/r/n聲并伴有換檔困難/r/nD、/r/n變速器空檔位置，發(fā)動機怠速運轉(zhuǎn)，變速器發(fā)出均勻的響聲，踩下離合器踏板響聲消失/r/n58．/r/n汽車起步或變換車速時，發(fā)出/r/n“/r/n咯咯/r/n”/r/n的撞擊聲，且正常勻速行駛時，響聲減弱或消失。出現(xiàn)這種/r/n現(xiàn)象的原因為/r/n(/r/n/r/n)。/r/nA、/r/n齒隙過大/r/n/r/n/r/nB、/r/n變速器潤滑油變質(zhì)/r/n/r/nC/r/n、/r/n同步器錐環(huán)磨損/r/nD、/r/n齒輪花鍵孔與軸配合松曠/r/n/r/n59．/r/n屬/r/n于轉(zhuǎn)向傳動機構(gòu)故障造成的轉(zhuǎn)向沉重的為/r/n(/r/n/r/n)。/r/nA、/r/n轉(zhuǎn)向節(jié)臂變形/r/nB、/r/n前軸變形/r/n/r/nC、/r/n輪胎壓力不足/r/nD、/r/n車架扭曲變形/r/n60．/r/n汽車轉(zhuǎn)向沉重，頂起前橋，轉(zhuǎn)動轉(zhuǎn)向盤，若感到轉(zhuǎn)向盤變輕，則說明故障在/r/n(/r/n/r/n)。/r/nA、/r/n前橋/r/nB、/r/n車輪/r/n/r/nC、/r/n四輪定位/r/n/r/n/r/nD、/r/n轉(zhuǎn)向器或轉(zhuǎn)向傳動裝置/r/n61．/r/n以400/r/n—/r/n500N的力用手作用在汽車的前部或后部，待放手后，車身在縱向豎直平面內(nèi)的振動次數(shù)不多于2/r/n—/r/n3次，/r/n說明/r/n(/r/n/r/n)。/r/nA、/r/n減振器良好/r/n/r/n/r/nB、/r/n減振器失效/r/n/r/n/r/nC/r/n、/r/n鋼板彈簧失效/r/n/r/n/r/nD、/r/n彈性元件失效/r/n62．/r/n萬向節(jié)十字軸軸承缺油，造成的現(xiàn)象為/r/n(/r/n/r/n)。/r/nA、/r/n起步或行駛中，始終有明顯的/r/n“/r/n咔啦/r/n”/r/n異響，并伴有抖動/r/n/r/nB、/r/n行駛中，聲音雜亂無章，時而出現(xiàn)金屬敲擊聲/r/nC/r/n、/r/n汽車行駛中，變換車速和油門試驗，出現(xiàn)/r/n“/r/n咔啦、咔啦/r/n”/r/n的撞擊聲，/r/n/r/nD、/r/n起步和變換車速時，有明顯的撞擊聲，低速比高速明顯/r/n63．/r/n全車線路整齊、連接可靠、絕緣良好是/r/n(/r/n/r/n)/r/n技術(shù)要求/r/n。/r/nA、/r/n二級維護/r/n/r/n/r/nB、/r/n一級維護/r/n/r/n/r/nC、/r/n日常維護/r/n/r/n/r/nD、/r/n大修/r/n64．/r/n通過檢測結(jié)果和故障診斷是/r/n汽車進行/r/n(/r/n/r/n)/r/n的確定依據(jù)/r/n。/r/nA、/r/n一級維護附加作業(yè)項目/r/n/r/nB、/r/n二級維護附加作業(yè)項目/r/n/r/nC/r/n、/r/n一級維護作業(yè)內(nèi)容/r/n/r/nD、/r/n二級維護作業(yè)內(nèi)容/r/n65．/r/n冬季蓄電池容量會/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不變/r/n/r/n/r/nD、/r/n以上說法都不對/r/n66．/r/n空調(diào)系統(tǒng)正常工作時，高、低壓管路/r/n(/r/n/r/n)。/r/nA、/r/n高壓管較粗、低壓管較細/r/n/r/n/r/nB、/r/n高壓管燙手、低壓管冰手為正常/r/n/r/nC/r/n、/r/n低壓管結(jié)露為不正常/r/n/r/nD、/r/n高/r/n、/r/n低/r/n壓/r/n管路有油漬為正常/r/n67．/r/n起動機主電路接通時，/r/n()/r/n被短路/r/n。/r/nA、/r/n電樞線圈/r/n/r/n/r/nB、/r/n勵磁線圈/r/n/r/n/r/n/r/nC/r/n、/r/n吸引線圈/r/n/r/n/r/nD、/r/n保持線圈/r/n68．/r/n用萬用表的電阻檔測量轉(zhuǎn)子滑環(huán)與轉(zhuǎn)子軸間的電阻，阻值是無窮大，說明/r/n(/r/n/r/n)。/r/nA、/r/n轉(zhuǎn)子繞組短路/r/nB、/r/n轉(zhuǎn)子繞組斷路/r/n/r/nC/r/n、/r/n轉(zhuǎn)子繞組搭鐵不良/r/nD、/r/n轉(zhuǎn)子繞組絕緣正常/r/n69．/r/n關(guān)于鹵化物檢漏儀、電子檢漏儀說法不正確的是/r/n()/r/n。/r/nA、/r/n電子檢漏儀適用R12、R/r/n134a/r/n的檢測/r/n/r/n/r/nB、/r/n電子檢漏儀使用方便，迅速、/r/n經(jīng)濟、不容易出故障/r/n/r/nC/r/n、/r/n鹵化物檢漏儀只能檢測氟利昂類制冷劑/r/n/r/nD、/r/n鹵化物檢/r/n漏/r/n儀較電子檢漏儀經(jīng)濟/r/n70．/r/n處理裝有制冷劑的容器不正確的是/r/n(/r/n/r/n)。/r/nA、/r/n不要加熱/r/n制冷劑容器/r/n/r/nB、/r/n使用過的一次性制冷劑容器，可以再次使用/r/nC、/r/n容器要保持在/r/n4/r/n0/r/n/r/nD、/r/n當用溫水加熱制冷劑容器時，不允許將容器頂部的閥/r/n門/r/n浸/r/n入/r/n水中，防止水滲入制冷管路/r/n71．，/r/n發(fā)動機/r/n起/r/n動困難，/r/n起/r/n動后運轉(zhuǎn)不穩(wěn)，怠速難以維持，有時/r/n“/r/n回火/r/n”/r/n，/r/n排氣管有時有/r/n“/r/n突、突/r/n”/r/n聲，甚至/r/n“/r/n放炮/r/n”/r/n，發(fā)動機動力不足，易過熱，這種現(xiàn)象稱為/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n點火錯亂/r/n/r/n/r/nB、/r/n高壓火花弱/r/n/r/n/r/nC、/r/n低速斷火/r/n/r/n/r/nD、/r/n高速斷火/r/n72．/r/n起/r/n動發(fā)動機，起動機運轉(zhuǎn)正常，但發(fā)動機/r/n無著車征兆，其原因是/r/n(/r/n/r/n)/r/n。/r/nA、/r/n點火時間過早/r/n/r/n/r/nB、/r/n點火時間過晚/r/n/r/n/r/nC/r/n、/r/n低速斷火/r/n/r/n/r/nD、/r/n高速斷火/r/n73．/r/n發(fā)動機怠速運轉(zhuǎn)正常，高速運轉(zhuǎn)不穩(wěn)，由缺火現(xiàn)象。排氣管有/r/n“/r/n突突/r/n”/r/n聲。這種現(xiàn)象稱為/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n點火不正時/r/n/r/nB、/r/n低速斷火/r/n/r/n/r/nC、/r/n高壓火/r/n花/r/n弱/r/n/r/n/r/nD、/r/n高速/r/n斷火/r/n74．/r/n發(fā)電機軸承與軸頸配合松動或有故障，可造成/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n發(fā)電機充電電流過小/r/n/r/n/r/nB、/r/n發(fā)電機充電電流過大/r/n/r/nC/r/n、/r/n發(fā)電機異響/r/n/r/n/r/n/r/nD、/r/n發(fā)電機不發(fā)電/r/n75．/r/n接通起動開關(guān)/r/n，/r/n起動機空轉(zhuǎn)，有較輕的摩擦聲/r/n音/r/n，說明/r/n(/r/n/r/n)。/r/nA、/r/n起動機驅(qū)動齒輪不能與飛輪齒/r/n圈結(jié)合/r/nB、/r/n起動機驅(qū)動齒輪或飛輪齒圈磨損嚴重/r/nC、/r/n單向離合器卡滯/r/n/r/n/r/n/r/n/r/nD、/r/n單向離合器打滑/r/n76．/r/n當起動機單向離合器轉(zhuǎn)子在軸上卡滯時，使驅(qū)動齒輪不能退出嚙合狀態(tài)，會導(dǎo)致/r/n(/r/n/r/n)/r/n故障/r/n。/r/nA、/r/n起動機運轉(zhuǎn)無力/r/n/r/n/r/nB、/r/n起動機不能停轉(zhuǎn)/r/n/r/n/r/nC/r/n、/r/n起動機空轉(zhuǎn)/r/n/r/n/r/nD、/r/n起動機/r/n不轉(zhuǎn)/r/n77．/r/n如果空調(diào)壓縮機帶輪安裝不正確，則可導(dǎo)致/r/n(/r/n/r/n)/r/n的故障/r/n。/r/nA、/r/n壓縮機不工作/r/nB、/r/n壓縮機振動/r/n太/r/n大/r/n/r/nC/r/n、/r/n離合器不工作/r/nD、/r/n離合器噪聲/r/n78．/r/n汽車空調(diào)風扇轉(zhuǎn)速太慢/r/n，可能的原因是/r/n(/r/n/r/n)。/r/nA、/r/n調(diào)速電阻接觸不良/r/n/r/nB、/r/n搭鐵線松脫或銹蝕/r/nC/r/n、/r/n風扇皮帶打滑/r/nD、/r/n風扇電路短路/r/n79．/r/n如果蒸發(fā)器的/r/n(/r/n/r/n)，/r/n凝結(jié)在蒸發(fā)器表面的水分就會結(jié)霜或結(jié)冰，嚴重時將會堵塞蒸發(fā)器/r/n的/r/n空氣通路，導(dǎo)致制冷效果/r/n降低/r/n。/r/nA、/r/n溫度低于/r/n1/r/n0/r/n℃/r/n/r/n/r/nB、/r/n溫度高于/r/n10/r/n℃/r/n/r/n/r/nC/r/n、/r/n溫度低于/r/n0/r/n℃/r/n/r/n80．/r/n以下說法正確的是/r/n(/r/n/r/n)/r/n。/r/nA、/r/n離合器線圈斷路可引起壓縮機振動太大/r/n/r/nB、/r/n離合器線圈短路可引起壓縮機振動太大/r/nC、/r/n皮帶松動可引起壓縮機振動太大/r/n/r/nD、/r/n制冷劑過少可引起壓縮機振動太大/r/n8/r/n1．/r/n/r/n(/r/n/r/n)/r/n是一種可讀出所施加的扭矩大小的專用扳手/r/n。/r/nA、/r/n開口扳手/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我國規(guī)定，一般場所的安全用電為/r/n(/r/n/r/n/r/n)/r/n伏/r/n。/r/nA、/r/n12/r/nB、/r/n2/r/n4/r/nC/r/n、/r/n36/r/n8/r/n3．/r/n液壓系統(tǒng)/r/n(/r/n/r/n)/r/n的功用是把輸入的機械能轉(zhuǎn)變?yōu)橛鸵旱膲毫δ?r/n。/r/nA、/r/n動力元件/r/n/r/n/r/nB、/r/n執(zhí)行元件/r/n/r/n/r/nC、/r/n控制元件/r/n/r/n/r/nD、/r/n輔助元件/r/n8/r/n4．/r/n對于NHA/r/n—/r/n501五氣尾氣分析儀，可檢測的廢氣成分有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四沖程發(fā)動機一個工作循環(huán)，曲軸轉(zhuǎn)兩圈，活塞在氣缸往復(fù)/r/n(/r/n/r/n/r/n)/r/n個行程/r/n。/r/nA、/r/n兩/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柴油機/r/n(/r/n/r/n/r/n)/r/n的功用是：降低壓柴油升壓后定時定量地送至噴油器/r/n。/r/nA、/r/n噴/r/n油泵/r/n/r/nB、/r/n輸油泵/r/n/r/n/r/nC、/r/n化油器/r/n/r/n/r/nD、/r/n調(diào)速器/r/n8/r/n7．/r/n汽油機電子燃油噴射系統(tǒng)一般由燃油供給系統(tǒng)、空氣供給系統(tǒng)和/r/n(/r/n/r/n)/r/n三部分組成/r/n。/r/nA、/r/n混合氣形成裝置/r/n/r/n/r/nB、/r/n電子控制系統(tǒng)/r/n/r/n/r/nC、/r/n廢氣排出裝置/r/nD、/r/n混合氣調(diào)節(jié)裝置/r/n8/r/n8．/r/n低阻型噴油器的電磁線圈電阻為/r/n(/r/n/r/n)/r/n歐姆/r/n。/r/nA、/r/n1/r/n—/r/n3/r/n/r/n/r/nB、/r/n1/r/n3/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發(fā)動機工作時，電控單元根據(jù)發(fā)動機的轉(zhuǎn)速、溫度、空氣流量等信號，控制/r/n(/r/n/r/n)/r/n上部的真空度，從而控制排放控制閥的開度/r/n。/r/nA、/r/nEGR閥/r/nB、/r/n怠速控制閥/r/nC/r/n、/r/n活性碳罐/r/nD、/r/n碳罐控制電磁閥/r/n9/r/n0．/r/n在配置電解液時，應(yīng)用玻璃棒引流，將/r/n(/r/n/r/n)。/r/nA、/r/n水慢慢倒入鹽酸中/r/n/r/n/r/nB、/r/n水慢慢倒入硫酸中/r/nC、/r/n鹽酸慢慢倒入水中/r/n/r/n/r/nD、/r/n硫酸慢慢倒入水中/r/n9/r/n1/r/n．/r/n關(guān)于使用吊裝設(shè)備的安全操作的描述，不正確的是/r/n(/r/n/r/n/r/n)。/r/nA、/r/n提升重物時，吊鉤應(yīng)位于吊件重心的正上方/r/nB、/r/n起吊和落下時，應(yīng)平穩(wěn)可靠，不可過急/r/nC、/r/n確認完好，方可起吊/r/nD、/r/n最大質(zhì)量不允許超過起動設(shè)備的質(zhì)量/r/n9/r/n2/r/n．/r/n勞動爭議當事人對仲裁裁決不服的，可以自收到仲裁裁決書之日起/r/n(/r/n/r/n)/r/n日內(nèi)向人民法院提起訴訟/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熱敏電阻式冷卻液溫度傳感器與發(fā)動機ECU連接，點火開關(guān)閉合，用電壓表測得傳感器端子電壓是/r/n(/r/n/r/n)。/r/nA、/r/n參考電壓/r/n/r/n/r/nB、/r/n蓄電池電壓/r/n/r/n/r/nC、/r/n信號電壓/r/n/r/n/r/nD、/r/n基準電壓/r/n9/r/n4/r/n．/r/n使用氣門正時檢驗儀和百分表/r/n(/r/n/r/n)/r/n配氣相位/r/n。/r/nA、/r/n只能測量進氣門/r/nB、/r/n只能測量排氣門/r/nC、/r/n可以測量進排氣門/r/nD、/r/n不能測量/r/n9/r/n5/r/n．/r/n熒光探傷法屬于/r/n(/r/n/r/n/r/n)。/r/nA、/r/n目測檢驗/r/nB、/r/n經(jīng)驗法檢測/r/nC/r/n、/r/n測量法/r/nD、/r/n無損探傷法/r/n9/r/n6/r/n．/r/n缸蓋平面度誤差的檢測需在/r/n(/r/n/r/n/r/n)/r/n位置上測量/r/n。/r/nA/r/n、/r/n3個/r/nB、/r/n4個/r/nC、/r/n5個/r/nD、/r/n6個/r/n9/r/n7/r/n．/r/n在凸輪的長軸方向測量/r/n(/r/n/r/n/r/n)/r/n位置的凸輪高，檢查凸輪磨損/r/n。/r/nA、/r/n1個/r/n/r/n/r/nB、/r/n2個/r/n/r/n/r/nC、/r/n3個/r/n/r/n/r/nD、/r/n中間/r/n98/r/n．/r/n氣門座/r/n絞削后，氣門與氣門座接觸面應(yīng)位于氣門座的/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連桿彎曲變形檢驗時，三個測點都與平板接觸說明/r/n(/r/n/r/n/r/n)。/r/nA、/r/n彎曲/r/n/r/n/r/nB、/r/n扭曲/r/n/r/n/r/nC/r/n、/r/n雙重彎曲/r/n/r/n/r/nD、/r/n正常/r/n10/r/n0/r/n．/r/n連桿存在彎扭變形時，測量結(jié)果是/r/n(/r/n/r/n)。/r/nA、/r/n只有上測點接觸，兩下測點與平板間隙不等/r/nB、/r/n兩下測點與平板接觸，而上測點不接觸/r/nC、/r/n上測點與平板接觸，而兩下測點不接觸且間隙相等/r/nD、/r/n三個測點都接觸/r/n10/r/n1/r/n．/r/n氣缸圓柱度誤差計算是氣缸不同截面最大測量直徑與/r/n(/r/n/r/n/r/n)/r/n直徑相減除以2/r/n。/r/nA、/r/n標準/r/n/r/n/r/nB、/r/n最小測量/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用萬用表/r/n(/r/n/r/n/r/n)/r/n測量電控燃油泵電機線圈是否正常/r/n。/r/nA、/r/n電壓當/r/n/r/n/r/n/r/nB、/r/n直流電流檔/r/nC、/r/n電阻檔/r/n/r/n/r/nD、/r/n交流電流檔/r/n10/r/n3/r/n．/r/n噴油泵供有正時檢查時，提高油壓使溢流管出油，按噴油泵工作時的旋轉(zhuǎn)方向轉(zhuǎn)動凸輪軸，到溢流管停止流油瞬間為止即為供油始點。這種方法叫/r/n(/r/n/r/n)。/r/nA、/r/n觀察法/r/n/r/n/r/n/r/nB、/r/n溢流法/r/nC/r/n、/r/n經(jīng)驗法/r/n/r/n/r/nD、/r/n壓力法/r/n10/r/n4/r/n．/r/n熱敏開關(guān)的檢查方法是將熱敏開關(guān)放入水中，逐漸加熱，當水溫達到/r/n(/r/n/r/n/r/n)/r/n℃/r/n時，測量熱敏開關(guān)接線與外殼的阻值應(yīng)導(dǎo)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/n93/r/n10/r/n5/r/n．/r/n點火線圈初級線圈檢查內(nèi)容是/r/n()/r/n。/r/nA、/r/n初級線圈的電流/r/nB、/r/n初級線圈的電壓/r/nC/r/n、/r/n初級線圈的電容/r/nD、/r/n初級線圈的電阻/r/n10/r/n6/r/n．/r/n檢查火花塞時還要檢查火花塞的熱特性是否與/r/n(/r/n/r/n)/r/n相匹配/r/n。/r/nA、/r/n點火電壓/r/n/r/n/r/nB、/r/n點火時間/r/nC/r/n、/r/n點火電流/r/n/r/n/r/nD、/r/n發(fā)動機/r/n10/r/n7/r/n．造成發(fā)動機/r/n機油變質(zhì)過快/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n集濾器堵塞/r/nB、/r/n機油泵工作不良/r/nC/r/n、/r/n曲軸箱通風不良/r/n/r/n/r/nD、/r/n機油粘度小/r/n1/r/n08/r/n．/r/n在冷卻液不足的條件下，/r/n造成發(fā)動機/r/n過熱/r/n的原因可能是(/r/n/r/n)。/r/nA、/r/n散熱器蓋的進、排氣閥失效/r/nB、/r/n氣缸墊裝反/r/nC、/r/n點火控制器損壞/r/nD、/r/n起動機損壞/r/n1/r/n09/r/n．/r/n造成發(fā)動機CO排放超標的原因可能是/r/n(/r/n/r/n)。/r/nA、/r/n活塞環(huán)和氣缸壁磨損嚴重/r/n/r/n/r/nB、/r/n發(fā)動機轉(zhuǎn)速傳感器故障/r/nC、/r/n爆震/r/n傳感器故障/r/n/r/n/r/nD、/r/n進氣溫度/r/n傳感器故障/r/n11/r/n0/r/n．/r/n造成發(fā)動機HC排放超標的原因可能是/r/n(/r/n)。/r/nA、/r/n發(fā)動機工作溫度高/r/n/r/n/r/n/r/n/r/nB、/r/n爆燃/r/nC、/r/n混合氣過稀/r/n/r/n/r/n/r/nD、/r/n車速傳感器故障/r/n11/r/n1/r/n．/r/n汽車污染物排放的途徑可能是/r/n(/r/n)。/r/nA、/r/n進氣系統(tǒng)/r/n/r/n/r/nB、/r/n曲軸箱蒸發(fā)泄漏/r/nC/r/n、/r/nEVAP系統(tǒng)/r/nD、/r/n廢氣渦輪增壓系統(tǒng)/r/n11/r/n2/r/n．/r/n某汽油機的進氣提前角是2/r/n0/r/n°/r/n，進氣遲后角是/r/n4/r/n0/r/n°/r/n；排氣提前角是50/r/n°/r/n，/r/n排氣遲后角是1/r/n0/r/n°/r/n。那么該發(fā)動機的氣門重疊角是/r/n(/r/n)/r/n。/r/nA、/r/n3/r/n0/r/n°/r/n/r/n/r/nB、/r/n6/r/n0/r/n°/r/n/r/nC/r/n、/r/n9/r/n0/r/n°/r/n/r/n/r/nD、/r/n18/r/n0/r/n°/r/n11/r/n3/r/n．/r/n造成發(fā)動機機油壓力過低的原因可能是/r/n(/r/n/r/n)。/r/nA、/r/n軸頸與軸承/r/n的配合間隙過小/r/n/r/n/r/nB、/r/n機油粘度高/r/nC、/r/n混合氣過稀/r/n/r/nD、/r/n機油泵齒輪磨損嚴重/r/n11/r/n4/r/n．(/r/n/r/n)是診斷/r/n發(fā)動機機油壓力過低/r/n故障的正確做法。/r/nA、/r/n檢/r/n查氣門間隙B、檢查/r/n傳感器/r/n是否/r/n損壞/r/nC、檢查/r/n混合氣濃度/r/nD、檢/r/n查點火提前角/r/n11/r/n5/r/n．/r/n二級維護前必須檢查變速器/r/n(/r/n)/r/n是否靈活、齒輪是否過緊、松曠、有異響，互鎖、自鎖裝置應(yīng)有效，不亂檔、跳檔/r/n。/r/nA、/r/n掛檔/r/n/r/n/r/nB、/r/n換檔/r/n/r/n/r/nC、/r/n摘檔/r/n/r/n/r/nD、/r/n倒檔軸/r/n11/r/n6/r/n．/r/n二級維護前應(yīng)對車輛行駛穩(wěn)定性進行檢查，其中包括車輛行駛在平直路上能保持直線行駛，轉(zhuǎn)向后能/r/n(/r/n/r/n)。/r/nA、/r/n偏轉(zhuǎn)一定角度/r/nB、/r/n自動回正/r/nC、/r/n按照轉(zhuǎn)向角度行駛/r/nD、/r/n偏移規(guī)定角度/r/n11/r/n7/r/n．/r/n手動變速器同步器的主要形式有常壓式、慣性式、/r/n(/r/n/r/n)/r/n等種類/r/n。/r/nA、/r/n被動式/r/n/r/n/r/nB、/r/n整合式/r/n/r/n/r/nC、/r/n間歇式/r/n/r/n/r/nD、/r/n自行增力式/r/n1/r/n08/r/n．/r/n變速器中，滾動軸承與軸承孔的配合間隙一般為/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主減速器的作用是改變動力傳遞方向、/r/n(/r/n/r/n)/r/n、增大轉(zhuǎn)矩/r/n。/r/nA、/r/n減低轉(zhuǎn)速/r/n/r/n/r/nB、/r/n提高轉(zhuǎn)速/r/n/r/nC/r/n、/r/n實現(xiàn)差速/r/n/r/n/r/nD、/r/n實現(xiàn)左右兩輪的轉(zhuǎn)速不同/r/n12/r/n0/r/n．/r/n半軸齒輪軸頸磨損超過/r/n(/r/n/r/n)mm/r/n，或與差速器殼孔配合間隙超過/r/n0.5mm/r/n時應(yīng)對半軸軸頸和差速器殼孔進行相應(yīng)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傳動軸軸管與萬向節(jié)叉、花鍵軸應(yīng)為/r/n(/r/n)/r/n配合/r/n。/r/nA、/r/n間隙/r/n/r/n/r/nB、/r/n過盈/r/n/r/n/r/nC、/r/n預(yù)緊/r/n/r/n/r/nD、/r/n公差/r/n12/r/n2/r/n．/r/n轉(zhuǎn)向器按照傳動副結(jié)構(gòu)形式分為球面蝸桿滾輪式、蝸桿曲柄銷式、循環(huán)球式和/r/n(/r/n)。/r/nA、/r/n曲柄指銷式/r/n/r/n/r/nB、/r/n蝸桿齒扇式/r/n/r/n/r/nC、/r/n蝸桿指銷式/r/nD、/r/n齒輪齒條式/r/n12/r/n3/r/n．/r/n懸架有不同的結(jié)構(gòu)形式，但都是由彈性元件、減振器和/r/n(/r/n/r/n)/r/n三部分組成/r/n。/r/nA、/r/n導(dǎo)向機構(gòu)/r/n/r/n/r/nB、/r/n導(dǎo)軌/r/n/r/nC/r/n、/r/n導(dǎo)向塊/r/n/r/n/r/nD、/r/n扭桿/r/n12/r/n4/r/n．/r/n前輪定位的主要參數(shù)包括主銷后傾角、主銷內(nèi)傾角、前輪外傾角和/r/n(/r/n/r/n)。/r/nA、/r/n推進角/r/n/r/n/r/nB、/r/n前輪前束值/r/n/r/n/r/nC、/r/n左右輪距/r/n/r/n/r/nD、/r/n前后軸距/r/n12/r/n5/r/n．/r/n主銷后傾角/r/n保證了汽車進行穩(wěn)定的/r/n(/r/n/r/n/r/n)/r/n行駛/r/n。/r/nA、/r/n直線/r/n/r/n/r/nB、/r/n曲線/r/n/r/n/r/nC、/r/n繞規(guī)定中心點/r/n/r/n/r/nD、/r/n轉(zhuǎn)向曲線/r/n12/r/n6/r/n．/r/n液壓鼓式制動器一般由制動鼓、制動底板、制動蹄、/r/n(/r/n/r/n/r/n)/r/n、制動輪缸、支承銷組成/r/n。/r/nA、/r/n制動鉗/r/nB、/r/n分缸活塞密封圈C、制動蹄回位彈簧/r/nD、/r/n制動總泵/r/n1/r/n27/r/n．/r/n制動防抱死系統(tǒng)（ABS）的工作過程中，車輪制動力的調(diào)節(jié)分為制動力壓力增長、保持、/r/n(/r/n/r/n)/r/n三個階段/r/n。/r/nA、/r/n降低/r/nB、/r/n縮小/r/nC/r/n、/r/n放大/r/nD、/r/n緩沖/r/n128．/r/n傳動軸中間支撐軸承固定螺栓松曠異響的現(xiàn)象為/r/n()。/r/nA、/r/n汽車起步或行駛中，始終有明顯的/r/n“/r/n咔啦/r/n”/r/n異響，并伴有/r/n振抖/r/nB、/r/n行駛中，突然改變速度時，出現(xiàn)一種金屬敲擊聲/r/nC、/r/n汽車行駛時，聲響隨車速增大而增大，且聲音渾濁、沉悶而連續(xù)/r/nD、/r/n行駛中變換車速和油門試驗，出現(xiàn)/r/n“/r/n咔啦、咔啦/r/n”/r/n的撞擊聲/r/n129．/r/n出現(xiàn)/r/n()/r/n將造成行車中突然出現(xiàn)有節(jié)奏的金屬敲擊聲/r/n。/r/nA、/r/n嚙合印痕不符合要求/r/n/r/n/r/nB、/r/n主減速器主、從動齒輪輪齒折斷/r/nC、/r/n差速器圓錐滾子軸承松曠/r/nD、/r/n半軸齒輪花鍵槽與半軸配合松曠/r/n130．/r/n汽車轉(zhuǎn)彎時有前橋異響的原因/r/n()。/r/nA、/r/n球叉式等速萬向節(jié)不良/r/nB、/r/n前束失準/r/nC、/r/n車輪外傾角不準/r/nD、/r/n橫拉桿調(diào)整不當/r/n131．/r/n造成汽車行駛時有異響，滑行時也不消失的原因為/r/n()。/r/nA、/r/n圓錐主、從動齒輪嚙合間隙過小/r/nB、/r/n圓錐主、從動齒輪嚙合間隙過大/r/nC、/r/n圓錐主、從動齒輪折斷/r/nD、/r/n半軸齒輪花鍵槽與半軸配合松曠/r/n132．/r/n出現(xiàn)/r/n()/r/n會造成汽車上坡發(fā)響/r/n。/r/nA、/r/n后橋某一部位的齒輪嚙合間隙過小/r/nB、/r/n后橋某一部位的齒輪嚙合間隙過大/r/nC、/r/n齒輪嚙合印痕不當/r/n/r/n/r/nD、/r/n齒輪軸支撐軸承松曠/r/n133．/r/n齒輪花鍵孔與軸配合松曠，造成的現(xiàn)象為/r/n()。/r/nA、/r/n在任何檔位，任何車速下均有/r/n“/r/n咝、咝/r/n”/r/n聲，并伴有過熱現(xiàn)象/r/nB、/r/n汽車起步或變換車速時，發(fā)出/r/n“/r/n咯咯/r/n”/r/n的撞擊聲，且正常勻速行駛時，響聲減弱或消失/r/nC、/r/n變速器空檔位置，發(fā)動機怠速運轉(zhuǎn)，變速器發(fā)出均勻的響聲，踩下離合器踏板響聲消失/r/nD、/r/n車速急劇變化，響聲增大，而車速相對穩(wěn)定，響聲消失/r/n/r/n134．/r/n屬于轉(zhuǎn)向傳動機構(gòu)故障造成的轉(zhuǎn)向沉重的為()。/r/nA、轉(zhuǎn)向節(jié)主銷與襯套配合間隙過大B、轉(zhuǎn)向節(jié)臂變形/r/nC、前輪輪轂軸承調(diào)整過緊D、前軸變形/r/n135．/r/n汽車轉(zhuǎn)向沉重，頂起前橋，轉(zhuǎn)動方向盤，感到轉(zhuǎn)向盤仍然沉重，拆下轉(zhuǎn)向搖臂與直拉桿的連接，轉(zhuǎn)向變輕，則說明故障在()。/r/nA、前橋B、車輪C、轉(zhuǎn)向器D、轉(zhuǎn)向傳動裝置/r/n136．/r/n屬于制動器故障引起的制動拖滯為/r/n()。/r/nA、/r/n制動蹄與制動鼓間隙調(diào)整不當，制/r/n動踏板放松后仍局部摩擦/r/nB、/r/n左右制動蹄與制動鼓接觸面積不一/r/nC、/r/n左右車輪輪缸的技術(shù)狀況不一，起作用時間不同/r/nD、/r/n單邊制動銷與制動蹄配合緊/r/n137．/r/n個別凸緣或萬向節(jié)十字軸軸承磨損松曠的現(xiàn)象為/r/n()。/r/nA、/r/n起步或行駛中，始終有明顯的/r/n“/r/n咔啦/r/n”/r/n異響，并伴有抖動/r/nB、/r/n行駛中，聲音雜亂無章，時而出現(xiàn)金屬敲擊聲/r/nC、/r/n汽車行駛中突然改變速度，出現(xiàn)一種金屬敲擊聲/r/nD、/r/n起步或變換車速時，有明顯的撞擊聲，低速比高速明顯/r/n138．/r/n蓄電池容量下降快的主要因素是/r/n()。/r/nA、/r/n放電電流過小/r/nB、/r/n放電電流過大/r/nC、/r/n電解液密度稍高/r/nD、/r/n電解液溫度高/r/n139．/r/n連接歧管壓力表時應(yīng)注意/r/n()。/r/nA、/r/n藍/r/n色軟管接低壓側(cè)，紅色軟管接高壓側(cè)/r/nB、/r/n藍色軟管接高壓側(cè)，紅色軟管接低壓側(cè)/r/nC、/r/n一定用工具緊固加注軟管/r/nD、/r/n有快接接頭的即快速接上即可/r/n140．/r/n解體起動機取出起動機電樞軸時，必須先拆下電樞軸上的/r/n()。/r/nA、/r/n止推墊圈/r/n/r/n/r/nB、/r/n卡簧/r/n/r/n/r/nC、/r/n復(fù)位彈簧/r/n/r/n/r/nD、/r/n撥叉/r/n141．/r/n發(fā)電機拆裝注意事項，下列說法錯誤的是/r/n()。/r/nA、/r/n不能將后端蓋單獨分離/r/n/r/n/r/nB、/r/n不能將前端蓋單獨分離/r/nC、/r/n發(fā)電機/r/n“/r/nB/r/n”/r/n接柱與外殼必須絕緣/r/nD、/r/n整流器的三個正極管與外殼必須絕緣/r/n142．/r/n用萬用表的電阻檔對發(fā)電機二極管進行檢測，若正、反向阻值都大，則說明二極管/r/n()。/r/nA、/r/n良好/r/n/r/n/r/nB、/r/n斷路/r/n/r/n/r/nC、/r/n短路/r/n/r/n/r/nD/r/n、搭鐵不良/r/n143．/r/n高壓側(cè)加注的制冷劑進入制冷系統(tǒng)中是/r/n()/r/n態(tài)/r/n。/r/nA、/r/n液/r/n/r/n/r/nB、/r/n氣/r/n/r/n/r/nC、/r/n氣液混合/r/n/r/n/r/nD、/r/n固/r/n144．/r/n檢測電氣儀表，缺乏檢測儀器時，可與標準儀表進行對比/r/n()。/r/nA、/r/n電流表的示值誤差應(yīng)小于/r/n±/r/n20%/r/nB、/r/n機油壓力表的示值誤差，油壓為0.2Mpa時，應(yīng)大于/r/n±/r/n10%/r/nC、/r/n機油壓力表的示值誤差，油壓為0.5Mpa時，應(yīng)大于/r/n±/r/n20%/r/nD、/r/n只有電熱式水溫表才可以采用對比的方法/r/n145．/r/n起動機空轉(zhuǎn)時，有嚴重的碰撞齒輪的聲音，說明/r/n()。/r/nA、/r/n起動機驅(qū)動齒輪不能與飛輪輪齒嚙合/r/nB、/r/n飛輪輪齒或起動機驅(qū)動齒輪嚴重磨損/r/nC、/r/n單/r/n向離合器在轉(zhuǎn)子軸上卡滯/r/n/r/n/r/nD、/r/n單向離合器打滑/r/n146．/r/n發(fā)動機不能起動，拔下火花塞端部的分缸線對缸體試火，起動發(fā)動機，觀察高壓火。若火花正常，則應(yīng)/r/n()。/r/nA、/r/n檢查分電器上的總高壓線/r/n/r/n/r/nB、/r/n檢查火花塞電極是否燒蝕，絕緣體是否有破裂/r/nC、/r/n檢查信號發(fā)生器/r/nD、/r/n檢查點火線圈/r/n147．/r/n發(fā)動機起動后，松開點火開關(guān)，若起動機驅(qū)動齒輪與飛輪齒圈無法分離/r/n，可導(dǎo)致/r/n()/r/n故障/r/n。/r/nA、/r/n起動機不轉(zhuǎn)/r/n/r/n/r/nB、/r/n起動機空轉(zhuǎn)/r/nC、/r/n起動機運轉(zhuǎn)無力/r/nD、/r/n起動機不能停轉(zhuǎn)/r/n148．/r/n關(guān)于空調(diào)離合器失靈的原因，下列說法不正確的是/r/n()。/r/nA、/r/n壓縮機振動/r/nB、/r/n壓縮機損壞/r/nC、/r/n離合器電磁線圈短路/r/nD、/r/n電源電壓過低/r/n149．/r/n汽車空調(diào)風扇轉(zhuǎn)速太慢，可能的原因是/r/n()。/r/nA、/r/n熔斷器熔斷/r/n/r/n/r/nB、/r/n風扇電路接觸不良或?qū)Ь€漏電/r/nC、/r/n風扇電路斷路/r/n/r/n/r/nD、/r/n接地線松脫或銹蝕/r/n150．/r/n打開冷氣后，管道和蒸發(fā)器結(jié)霜，制冷壓縮機不停轉(zhuǎn)的原因是/r/n()。/r/nA、/r/n膨脹閥損壞/r/nB、/r/nEPR閥卡在最小開啟位置/r/nC、/r/n蒸發(fā)器溫度傳感器的導(dǎo)線插頭松動，造成斷路/r/nD、/r/n蒸發(fā)器溫度傳感器的導(dǎo)線插頭松動，造成短路/r/n二、多選題：（請選擇兩個或以上正確答案，將相應(yīng)字母填入括號內(nèi)。錯選或多選、少選均不得分，也不倒扣分。每題1分。)/r/n1．/r/n順平銼是最常用的一種銼法，/r/n用順平銼可以得到/r/n(/r/n/r/n)。/r/nA、/r/n較寬的表面粗糙度/r/n/r/n/r/nB、/r/n較高的表面粗糙度/r/n/r/nC、/r/n較低的表面粗糙度/r/n/r/n/r/nD、/r/n曲線銼痕/r/n/r/n/r/nE、/r/n直線銼痕/r/n2．/r/n以下指標中，能夠反映汽車金屬材料工藝性能的是/r/n(/r/n/r/n/r/n/r/n)。/r/nA、/r/n塑性/r/n/r/n/r/nB、/r/n彈性/r/n/r/n/r/nC/r/n、/r/n韌性/r/n/r/n/r/nD、/r/n可鑄性/r/n/r/n/r/nE、/r/n耐磨性/r/n3．/r/n以下為視圖表示方法的是/r/n(/r/n/r/n)。/r/nA、/r/n基本視圖/r/n/r/n/r/nB/r/n、/r/n斜視圖/r/n/r/n/r/nC/r/n、/r/n局部視圖/r/n/r/n/r/nD、/r/n旋轉(zhuǎn)轉(zhuǎn)視圖/r/n/r/n/r/nE、/r/n剖視圖/r/n4．/r/n以下關(guān)于勞動工資的描述，正確的/r/n是(/r/n/r/n/r/n/r/n)。/r