【简答题】【消耗次数:1】
节气门部分开启时的发动机转速特性曲线称为发动机[填空]曲线,可表征汽车的[填空]。
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相关题目
【简答题】 节气门全开时的发动机转速特性曲线称为发动机[填空]曲线,可表征汽车的[填空]性。
【单选题】 在同一转速时,节气门的开度越大,则发动机的负荷( )。
①  越大
②  越小
③  不变
④  不一定
【单选题】 ( )就是节气门迅速关闭,离合器不分离,发动机由汽车倒拖在较高转速下空转。
①  加速
②  减速
③  停车
④  急加速
【判断题】 在装有节气门限位螺钉的汽车上,可以调节节气门限位螺钉,来保持发动机怠速运转
①  正确
②  错误
【判断题】 装用电控节气门系统的发动机不需装用怠速控制阀
①  正确
②  错误
【判断题】 ()汽车发动机工况用发动机功率表示。
①  正确
②  错误
【单选题】 汽车在运输作业时,发动机的功率和转速都在很大的范围内变化。所以汽车发动机的工况属于( )。
①  点工况
②  恒速工况
③  面工况
④  螺旋桨工况
【单选题】 汽车发动机气门间隙值一般为
①  0.05~0. 10mm
②  0.10~0. 20mm
③  0.20~0. 50mm
④  0.50mm~1. 00mm
【单选题】 技术员甲说在进行发动机真空测试时,发动机应预热并在正常怠速状态运转;技术员乙说应将真空表连接到位于节气门下方的真空源上来测量发动机的真空
①  只有甲正确
②  只有乙正确
③  两人均正确
④  两人均不正确
【单选题】 发动机中的气门弹簧是用来
①  转动气门
②  避免气门杆弯曲
③  打开气门
④  关闭气门
随机题目
【单选题】 21. — When will you leave for Paris for a visit? — next month.
①  Until
②  After
③  At
④  In
【单选题】 27. For quite _____ students,their teachers advice is more important than _____ of their parents.
①  few;one
②  afew;that
③  alittle;some
④  alot;many
【单选题】 23. Never _______ forget the days when _______ together with you.
①  shallI;Ilived
②  shallI;didIlive
③  Ishall;Ilived
④  Ishall;didIlived
【单选题】 28. "_____ your meeting is!" he offered them his sincere congratulations.
①  Howagreatsuccess
②  Whatagreatsuccess
③  Howgreatsuccess
④  Whatgreatsuccess
【单选题】 24. Why didnt you tell me there was no meeting today? I _____ all the way here _____the heavy snow.
①  neednthavedriven;though
②  canthavedriven;across
③  mustnthavedriven;through
④  shouldnthavedriven;cross
【单选题】 25.It was the training _______ he had at school _______ made him good jumper.
①  what;what
②  that;that
③  what;that
④  that;had
【单选题】 26. It was _____ great shock to the world that two airplanes crashed into _____ World Trade Centre in New York on Sept.11.
①  a;/
②  the;the
③  a;the
④  /;the
【单选题】 29. We must remember that _____fashion is not the most important thing in _______ life.
①  /;the
②  /;/
③  the;/
④  the;the
【单选题】 22. The two old sisters,_______ so long,held each other and burst into tears.
①  beingseparated
②  havingbeenseparated
③  havingsepartated
④  hadbeensepartated
【单选题】 30. It _____ quite a few years _____ the accused was declared innocent and set free.
①  was;since
②  is;that
③  willbe;when
④  was;before