【单选题】【消耗次数:1】
三轴之间要求实现运动的合成或分解,应选用()。
A.定轴轮系
B.行星轮系
C.差动轮系
D.A和B
参考答案:
复制
纠错
相关题目
【判断题】 行星轮系和差动轮系的自由度分别为1和2。
①  正确
②  错误
【单选题】 组成定轴轮系的各齿轮,若其轴线相互平行,则为()轮系。
①  A.平面定轴
②  B.差动
③  C.空间定轴
④  D.行星
【判断题】 混合轮系必须由定轴轮系和周转轮系两种组成。
①  正确
②  错误
【多选题】 定轴轮系根据轴线间几何位置不同可以分为()和()两大类。
①  A.平面定轴轮系
②  B.空间定轴轮系
③  C.差动轮系
④  D.行星轮系
【单选题】 定轴轮系的传动比大小与轮系中的惰轮的齿数____。
①  成正比
②  成反比
③  有关
④  无关
【判断题】 所有齿轮的轴线相对于机架都是固定的轮系称为定轴轮系。
①  正确
②  错误
【单选题】 定轴轮系的传动比大小与惰轮的齿数()。
①  A.有关
②  B.无关
③  C.成正比
④  D.成反比
【判断题】 平面定轴轮系的传动比有正负。
①  正确
②  错误
【单选题】 周转轮系的传动比计算应用了转化轮系的概念。对应周转轮系的转化轮系乃是()。
①  定轴轮系
②  行星轮系
③  混合轮系
④  差动轮系
【多选题】 轮系包括()、()和()三大类。
①  A.定轴轮系
②  B.周转轮系
③  C.混合轮系
④  D.蜗轮蜗杆
随机题目
【单选题】 But for the party, the old man______of hunger fifteen years ago.
①  must die
②  must have died
③  would die
④  would have died
【单选题】 _____withthesizeofthewholeearth,thehighestmountaindoesnotseemhighatall.
①  When compared
②  Compare
③  While comparing
④  Comparing
【单选题】 Thats pretty good that you get up and go running, but I ______ like running early in the morning since I’ve got to prepare breakfast for my family.
①  have a good time
②  have a hard time
③  have time
④  have much time
【单选题】 It has been raining all day, but even though it______, we______there by tomorrow.
①  didnt rain, couldn’t get
②  hadn’t rained, couldn’t get
③  didn’t rain, can’t get
④  hadn’t rained, can’t get
【单选题】 The judge insisted that the woman______ innocent and that she______at once.
①  was; be set free
②  be; be set free;
③  be; was set free
④  was; was set free
【单选题】 The manager______ at 8:30 am for the meeting, but he didn’t show up.
①  ought to arrive
②  should have arrived
③  should arrive
④  was supposed to arrived
【单选题】 If Linda had practised hard enough last week,she______ more confident on the stage now.
①  would have been
②  had been
③  is
④  would be
【单选题】 Theyareconsidering______beforethepricesgoup.
①  of buying the house
②  with buying the house
③  buying the house
④  to buy the house
【单选题】 After the student was praised for what he had done, he said:“ I______ even better under harder conditions. ”
①  had done
②  did
③  would have done
④  would do
【单选题】 The old man is upset in fact today, but he looks as if he______ as happy as before.
①  will be
②  were
③  had been
④  is