One of the most common causes of reduction gear failure is gear wear caused by scoring as a result ofA.surface fatigue of the gearsB.an inadequate lube oil filmC.plastic flow of the gearsD.fretting corrosion from water

题目

One of the most common causes of reduction gear failure is gear wear caused by scoring as a result of

A.surface fatigue of the gears

B.an inadequate lube oil film

C.plastic flow of the gears

D.fretting corrosion from water

相似考题

1.__________[A] attaining [B] scoring [C] reaching [D] calculating

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4.Everypageofyourwebsitemustincludeacommonsetofnavigationmenusatthetopofthepage.ThismenuisstaticHTMLandchangesfrequently，soyouhavedecidedtouseJSP’sstaticimportmechanism.WhichJSPcodesnippetaccomplishesthisgoal？（）A.<%@importfile=’/common/menu.html’%>B.<%@pageimport=’/common/menu.html’%>C.<%@importpage=’/common/menu.html’%>D.<%@includefile=’/common/menu.html’%>E.<%@pageinclude=’/common/menu.html’%>

参考答案和解析
正确答案：B
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  • 第1题：

    I saw your man not operating the winch gear ______ gear．

    A.in

    B.by

    C.of

    D.against


    正确答案：B

  • 第2题：

    分子运动方程的数值求解方法有

    A．Verlet 法

    B．蛙跳法

    C．速度Verlet 法

    D．Gear 预测校正算法


    Verlet 法;蛙跳法;速度 Verlet 法;Gear 预测校正算法

  • 第3题：

    使用ggplot2将数据集mtcars中mpg映射到x轴，hp映射到y轴，并绘制散点图。 要求： 1.将gear映射到颜色属性 2.将carb隐射到散点大小 3.提交R代码及绘制图形


    stat_smooth()

  • 第4题：

    __________

    A.hear
    B.fear
    C.dear
    D.wear

    答案：D
    解析：

  • 第5题：

    GEAR路由协议不适合在移动WSN使用。


    正确

  • 第6题：

    3、曲柄滑块机构，可实现将滑块的直线移动转换为曲柄的整周转动。该机构翻译为（）

    A．slider-crank mechanism

    B．inclined plane mechanism

    C．moving cam mechanism

    D．gear-rack mechanism


    C

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