【单选题】
汽油发动机汽缸套筒外壁圆柱度误差的使用极限是___ mm。
A. ≤0.02
B. ≤0.05
C. ≤0.01
D. ≤0.10
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相关试题
【单选题】
汽车变速器壳体的材料一般选用___。
A. 高碳合金钢
B. 低碳合金钢
C. 碳素工具钢
D. 铸钢
【单选题】
发动机曲轴现广泛采用___，可满足强度和刚度要求以及较高的耐磨性。
A. 合金钢
B. 球墨铸铁
C. 灰口铸铁
D. 特殊合金钢
【单选题】
发动机曲轴轴承座孔轴线与汽缸轴线应用___误差评价。
A. 平行度
B. 垂直度
C. 同轴度
D. 位置度
【单选题】
关于平行台式静平衡检验台架的组成，下列不是其组成部分的是___。
A. 棱形导轨
B. 支座
C. 调整螺钉
D. 平衡块
【单选题】
汽车修理中，在一个工位完成全部修理工作，此作业方式为___。
A. 固定工位作业法
B. 流水作业法
C. 专业分工法
D. 就车修理法
【单选题】
粘结法用于修理汽车零件的裂纹，主要缺点是___。
A. 设备复杂，操作困难
B. 易产生热应力
C. 易造成腐蚀
D. 抗冲击能力差，不耐高温
【单选题】
汽车传动轴组装和发动机曲轴检验后，还必须进行___。
A. 动平衡试验
B. 传动试验
C. 装车试验
D. 整体检验
【单选题】
发动机铸铁缸套镗削时第一刀吃刀量为___ mm。
A. 0.03～0.05
B. 0.10～0.20
C. 0.05～0.10
D. 0.05～0.075
【单选题】
发动机曲轴轴颈磨损量检查可用___进行 。
A. 千分尺
B. 游标卡尺
C. 百分表
D. 厚薄规
【单选题】
发动机曲轴磨削的目的是恢复曲轴轴颈的几何尺寸、几何精度和表面粗糙度，同时纠正曲轴的___。
A. 形位误差
B. 形状误差
C. 平行度误差
D. 位置误差
【单选题】
对于配气相位的检查，以下说法正确的是___。
A. 应该在气门间隙调整前检查
B. 应该在气门间隙调整后检查
C. 应该在气门间隙调整过程中检查
D. 无具体要求
【单选题】
发动机总成拆装过程中，不需要的机具是___。
A. 活塞环拆装钳
B. 气门弹簧拆装架
C. 千斤顶
D. 专用扳手
【单选题】
一般大中型汽车修理企业为了降低修理成本，常用___来清除油污。
【单选题】
汽车发动机修理中，下列___不需选配。
A. 活塞销
B. 活塞
C. 活塞环
D. 汽缸盖
【单选题】
装配工作效率不用___作为指标评价。
A. 工时
B. 成本
C. 机械化程度
D. 装配质量
【单选题】
装配尺寸中对封闭环有影响的全部环称为组成环，下列选项中中，___不是组成环。
A. 增环
B. 减环
C. 补偿环
D. 封闭环
【单选题】
安装桑塔纳2000型轿车AFE发动机正时齿形带，应使凸轮轴齿带轮标记与___平面标记对齐。
A. 曲轴齿轮
B. 气门室罩盖
C. V型带轮盘
D. 齿带张紧轮
【单选题】
组装解放CA1091型汽车传动轴两端万向节叉应___。
A. 在同一线上
B. 在同一平面
C. 互相垂直
D. 成一定角度
【单选题】
解放CA1092型汽车车用主减速器的从动圆锥齿轮轴承预紧度过紧，甲说：“应增加任意一边侧盖下调整垫片的厚度”；乙说：“适当旋松环形调整螺母”；丙说：“应减少任意一边侧盖下调整垫片的厚度”。___说法正确的。
【单选题】
用试棒角尺检验汽车前轴时，若两者之间出现间隙，表明前轴存在___变形。
A. 垂直弯曲
B. 水平弯曲
C. 扭曲
D. 扭曲并弯曲
【单选题】
转向垂臂装复到摇臂轴上，其端面应高出摇臂轴花键端面___ mm。
A. 2～5
B. 1～2
C. 2.5～3
D. 0.5～1
【单选题】
上海桑塔纳2000型轿车前轮制动器的轮缸内活塞安装前，活塞外表面应涂抹一层___。
A. 制动液
B. 机油
C. 润滑脂
D. 防冻液
【单选题】
解放CA109型汽车变速器的常啮合齿轮啮合间隙一般为___ mm。
A. 0.15～0.50
B. 0.10～0.25
C. 0.05～0.15
D. 0.10～0.40
【单选题】
检验自动变速器伺服油缸时，可向作用孔吹入压缩空气，此时___应立即抱紧。
A. 制动带
B. 离合器
C. 伺服油缸
D. 活塞
【单选题】
检验气门密封性，常用且简单可行的方法是___。
A. 水压
B. 煤油或汽油渗透
C. 口吸
D. 仪器
【单选题】
以车厢为主，结合发动机总成符合大修条件作为大修送修标志的是___。
【单选题】
下列选项中，不是发动机总成大修送修标志的是___。
A. 汽缸磨损
B. 最大功率下降
C. 燃料消耗异常
D. 异响
【单选题】
下列选项中，___不是汽车车架总成大修送修标志。
A. 前桥变形严重
B. 断裂、锈蚀、变形超限
C. 车架大部分铆钉松动
D. 车架弯曲变形超限
【单选题】
下列选项中，___不是汽车变速器总成大修送修标志。
A. 壳体变形、破裂
B. 变速齿轮及轴磨损严重
C. 轴承孔磨损严重
D. 变速器漏油
【单选题】
汽车后桥总成大修送修标志是___。
A. 壳体变形、破裂
B. 半轴套管承孔磨损
C. 减速器齿轮磨损
D. 后桥总成有响声
【单选题】
下列选项中，___不是客车车身总成的大修送修标志。
A. 车身有轻微锈蚀
B. 车厢骨架断裂
C. 车厢骨架变形严重
D. 蒙皮破损面积较大
【单选题】
下列选项中，___不是货车车身总成的大修送修的标志。
A. 驾驶室变形严重
B. 货箱纵、横梁腐朽
C. 货箱底板，栏板破面积较大
D. 驾驶室轻微锈蚀
【单选题】
车辆送修时应具备___功能，装备齐全，不得拆换。
【单选题】
汽车进厂后，进行行驶中检查，需检查的项目是___。
A. 转向性能
B. 电气设备是否齐全
C. 安全机构的连接
D. 灯光性能
【单选题】
汽车发动机汽缸体上下平面的平面度误差不应大于___ mm。
A. 0.10
B. 0.20
C. 0.02
D. 0.05
【单选题】
桑塔纳2000型轿车离合器膜片弹簧分离指应在同一平面上，翘曲变形引起的平面度误差不应大于___ mm。
A. 0.5
B. 0.6
C. 0.8
D. 0.4
【单选题】
汽车传动轴花键与滑动叉和突缘键槽的侧隙，轿车应不大于___ mm。
A. 0.25
B. 0.20
C. 0.15
D. 0.10
【单选题】
汽车车架弯曲检验，要求纵梁上平面直线度误差为每100mm长度不大于___ mm。
【单选题】
汽车空调压缩机泄漏检查方法有多种，但下列方法中___不能采用。
A. 卤化器检测器
B. 电子检漏器
C. 肥皂泡
D. 水压法
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The newspaper didn’t mention the ___ of the damage caused by the fire.
A. range
B. level
C. extent
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Do you ___ her novels as serious literature or as mere entertainment?
A. classify
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He doesn’t ___ of buying a house this year because the bank has refused to lend him any money.
A. afford
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A. would like
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Bullying (恃强欺弱) can ___ a climate of fear and anxiety in school, and prevent students from focusing on their schoolwork.
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Science can now ___ many things which were thought to be mysterious by ancient people.
A. care for
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The school has ___ many after-class activity groups for the pupils to make their spare time more colorful.
A. set up
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When he was a small kid, he ___ from his peers because he could read fast and remember whatever he rea D.
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The fall in the number of deaths from heart disease is generally ___ improvements in diet.
A. put up with
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We can be partners for now, but ultimately you have to ___ to develop a new software for our project.
A. keep up
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Emotional Intelligence (情商) could be of practical use in many ___ such as how companies decide which job applicant to hire, how parents should raise their children, how schools should teach the students, and so on.
A. aspects
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C. structures
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【单选题】
The teacher should praise students for their correct answers and also suggest ___ possibilities.
A. unlimited
B. unique
C. alternative
D. essential
【单选题】
In some classrooms, desks are arranged in a U-shape, so the teacher can ___ easily with the students.
A. interrupt
B. interact
C. interpret
D. interview
【单选题】
Computer technology ___ individuals to educate themselves and adapt to a constantly changing job market.
A. lets
B. makes
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Our hope for an enjoyable dinner was instantly ___ when the waiter dropped a salad plate on my hea D.
A. spoiled
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___ the world has ever seen has occurred in the information and communications technologies.
A. Great a change
B. The great change
C. A greatest change
D. The greatest change
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___ so many people around, it wasn’t convenient to have a long talk with him.
A. As
B. When
C. With
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Alice used to be terribly shy, but working abroad for a year has completely ___ her.
A. solved
B. transformed
C. characterized
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Chinese Mandarin (普通话) is ___ for foreigners to learn because the changes in the tone will totally change the meaning of words.
A. difficult
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Take action on those things that will have the biggest ___ impact on your life with the least amount of effort.
A. portable
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The adoption of this measure will greatly reduce the ___ of greenhouse gas emissions (排放物), which may help slow global warming.
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I think I have a healthy lifestyle. I eat a lot of fruit and vegetables, and I’m a ___ drinker.
A. moderate
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In a way the human race needs to improve its mental and physical qualities if it is to deal with the more and more ___ world and meet new challenges.
A. typical
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If a person simply does not care about this activity, it’s ___ impossible to get him to participate.
A. barely
B. seldom
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Sometimes, even when the mind ___ functioning, the body keeps on working normally.
A. ceases
B. arouses
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【单选题】
Jeffery expressed his ___ about the health and fitness of his co-workers, but they said they didn’t want to “waste time” on an exercise bike or jogging.
A. agony
B. concern
C. addiction
D. feedback
【单选题】
Such chemicals are indeed negatively ___ those humans to whom they are expose D.
A. risking
B. detecting
C. impacting
D. overwhelming
【单选题】
We regret for selling you the faulty product, and our company has agreed to ___ you by $500.
A. match
B. reverse
C. reward
D. compensate
【单选题】
This lecture taught me how to manage my time better to include my online studies in my busy ___.
A. schedule
B. outline
C. structure
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【单选题】
Generally speaking, an Irish person will not accept an offer straight away; he will ___ once or twice first before accepting it.
A. receive
B. decline
C. summarize
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There is every possibility that many species (物种) of animals will die out because of their disappearing food ___.
A. mode
B. source
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As a college student, you should enjoy learning and get yourself ___ in those things that interest you.
A. concerned
B. devoted
C. involved
D. pursued
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The name of Hitler (希特勒) has always been associated with war and ___ killing in the minds of those people who lived through World War Two.
A. imaginary
B. multiple
C. indispensable
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【单选题】
He works hard every day to make more money, but he ___ his health, time with his family, and the hobbies he once love D.
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【单选题】
I asked a passenger sitting beside me if our train was the Westlake Express train, and he said he ___ of it.
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【单选题】
Whatever you say in the paper has to ___ your own thinking; hence simply repeating the professor’s opinions or whatever is in the readings will not get you very far.
A. ignore
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【单选题】
We are sorry to know that they did not succeed ___ the project for lack of necessary funds.
A. to fulfill
B. to have fulfilled
C. in fulfilling
D. with fulfilling
【单选题】
It is surprising that fewer students were prepared to undertake the ___ to hand in written work on a regular basis, or to study over long periods.
A. engagement
B. commitment
C. authority
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【单选题】
Emily felt hurt and ___ by a close friend who had borrowed a considerable sum of money to pay for a house and then took it as a gift, never thinking of giving back the money.
A. conflicted
B. curbed
C. swollen
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【单选题】
In 1988 the old system was ___ in the country and a new system was introduced to take effect in 1990.
A. transmitted
B. abolished
C. assumed
D. compensated
