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轴系若按轴承允许负荷原理校中,常采用的校中工艺方法是()。

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  • 【名词&注释】

    经济性(economy)、船舶动力装置(marine power plant)、柴油机气缸套(engine cylinder liner)、弹簧测力计(spring loaded thrust meter)

  • [单选题]轴系若按轴承允许负荷原理校中,常采用的校中工艺方法是()。

  • A. 弹簧测力计(spring loaded thrust meter)
    B. 顶举法
    C. 测法兰对上的偏中值
    D. A或B或C

  • 查看答案&解析 查看所有试题
  • 学习资料:
  • [单选题]为了提高船舶动力装置的经济性,()部门应对整个动力装置进行综合分析。
  • A. 设计
    B. 制造
    C. 使用
    D. A+B+C

  • [单选题]柴油机排气系统的背压与()。Ⅰ.废气流速的平方成正比;Ⅱ.与管径的4次方成反比
  • A. 仅Ⅰ对
    B. 仅Ⅱ对
    C. Ⅰ,Ⅱ都对
    D. Ⅰ,Ⅱ都不对

  • [单选题]当柴油机气缸套产生较大拉痕、擦伤、磨台和过度磨损时,应拆下送厂采用()进行修理。Ⅰ.镀铬;Ⅱ.镗缸;Ⅲ.修理尺寸法;Ⅳ.喷焊;Ⅴ.恢复尺寸法。
  • A. A.Ⅰ+Ⅲ+Ⅳ+Ⅴ
    B. B.Ⅰ+Ⅱ+Ⅴ
    C. C.Ⅱ+Ⅲ+Ⅴ
    D. D.Ⅰ+Ⅱ+Ⅲ

  • [单选题]In a diesel engine, fuel must be broken up into a spray of fine droplets to ().
  • A. increase its quality
    B. obtain complete burning
    C. reduce its weight
    D. all of the above

  • [单选题]The main function of the lubrication system in to enable () of a film of oil between the moving parts.
  • A. the information
    B. the formation
    C. the scatter
    D. the frictio

  • [单选题]The pressurized air is usually cooled to increase the charge air ().
  • A. viscosity
    B. density
    C. velocity
    D. electricity

  • [单选题]The essential part of the diesel engine, whose function is to convert the heat energy into the mechanical power, is the ().
  • A. crankshaft
    B. piston
    C. connecting rod
    D. bearing

  • [单选题]The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by ().
  • A. direct action of cam shaft
    B. compressed air pressure
    C. hydraulic “push rods”
    D. direct action of the main piston moving dow

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