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艉轴裂纹主要发生在()等处。Ⅰ.法兰根部;Ⅱ.工作轴颈;Ⅲ.铜套接

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  • 【名词&注释】

    汽轮机(steam turbine)、柴油机增压器(diesel supercharging)、二冲程低速、燃气动力装置(gas power plant)

  • [单选题]艉轴裂纹主要发生在()等处。Ⅰ.法兰根部;Ⅱ.工作轴颈;Ⅲ.铜套接缝处轴颈;Ⅳ.键槽根部;Ⅴ.锥部大端截面变化。

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

  • 查看答案&解析 查看所有试题
  • 学习资料:
  • [单选题]汽轮机动力装置与燃气动力装置(gas power plant)相比,其主要缺点是()。
  • A. 转速高
    B. 效率低
    C. 体积大
    D. 噪声大

  • [单选题]废气锅炉的排气流动阻力不能过大,因为二冲程低速柴油机增压器后的排气背压规定一般不宜超过()。
  • A. 0.003MPa
    B. 300mmH,0
    C. 3000Pa
    D. A,B,C均可

  • [单选题]Fuels of high quality with their earlier ignitions will cause higher ()pressure in cylinders of a diesel engine.
  • A. compression
    B. maximum
    C. rated
    D. oil

  • [单选题]In large marine diesel engines cylinder oils usually contain additives formulated to impart the () to clean the rings and grooves.
  • A. inefficiency
    B. oiliness
    C. detergency
    D. purity

  • [单选题]On top of scavenging air box is mounted a strong cast iron frame for each cylinder known as()
  • A. cooling jacket
    B. cylinder liner
    C. piston crown
    D. cylinder cover

  • [单选题]The fuel injection system is very important, so any trouble of it will () the operation of the main engine.
  • A. be affected
    B. affect
    C. be effected
    D. effect

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