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船轴表面裂纹可采用()进行无损检测。Ⅰ.着色探伤;Ⅱ.煤油-白粉

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    超声波(ultrasonic)、螺旋桨(propeller)、零部件(parts)、相互配合(interwork)、十字头销(crosshead pin)

  • [单选题]船轴表面裂纹可采用()进行无损检测。Ⅰ.着色探伤;Ⅱ.煤油-白粉;Ⅲ.磁粉探伤;Ⅳ.超声波探伤;Ⅴ.X射线探伤。

  • A. Ⅱ+Ⅲ
    B. Ⅰ+Ⅲ
    C. Ⅰ+Ⅲ+Ⅴ
    D. Ⅰ+Ⅱ+Ⅲ

  • 查看答案&解析 查看所有试题
  • 学习资料:
  • [单选题]拆卸机器时不必()。
  • A. 拆不开的零部件不得强拆
    B. 对拆下的零件进行磁粉探伤
    C. 相互配合的零件应做好标记
    D. 拆开的孔口应遮盖封堵,避免损伤或进入异物

  • [单选题]换新十字头轴瓦时,十字头销(crosshead pin)与轴承下瓦在()内的接触面积不少于()。
  • A. 40°~60°/75%
    B. 40°~60°/85%
    C. 60°~90°/75%
    D. 60°~90°/85%

  • [单选题]传动轴系是指从()间的轴及轴承。
  • A. 曲轴自由端到螺旋桨
    B. 推力轴法兰到螺旋桨
    C. 曲轴动力输出法兰到螺旋桨
    D. 尾轴法兰到螺旋桨

  • [单选题]() the supercharge pressure is, () power an engine develops.
  • A. The higher;the more
    B. Higher;more
    C. Higher;little
    D. The higher;the le

  • [单选题]High-speed rotating in a centrifugal purifier can produce a force () larger than the force of gravity.
  • A. many thousand times
    B. between times
    C. one time
    D. at time

  • [单选题]The piston rings if found worn out () and supplied by shipchandler.
  • A. must replace
    B. must to be equipped
    C. has to be repaired
    D. have to be renewed

  • [单选题]The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to ().
  • A. assist in a quick cutoff of fuel injection
    B. allow oil backflow from the injector to the helix
    C. reduce fuel oil pressure between injection strokes
    D. meter the quantity of fuel delivered

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