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Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?A.Pressure-reducing valveB.Unloading valveC.Counterbalance valveD.Pressure-relief valve

题目

Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?

A.Pressure-reducing valve

B.Unloading valve

C.Counterbalance valve

D.Pressure-relief valve

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更多“Which of the listed pressure control valves would be used to establish the maximum operati ”相关问题

  • 第1题：

    The doctors did not reveal the truth to him.

    A:.hide
    B: handle
    C: disclose
    D: establish

    答案：C
    解析：
    句意：医生们没有向他透露事实。画线单词reveal意为“揭露，透露”。A项hide意为“隐藏”;B项handle意为“处理”;C项disclose意为"公开，透露"，与画线单词同义；D项establish意为“建立，使成为”。故本题选C。

  • 第2题：

    Such a database would be extremely costly to set up.

    A:update
    B:transfer
    C:destroy
    D:establish

    答案：D
    解析：
    本句意思：建立这样的数据库成本会非常高。set up为固定搭配，意为“建立”, establish “建立”，二者意思相近。update“更新”;transfer“转移”;destroy“破坏”。

  • 第3题：

    对于环境已经恶化的区域，更适合采用（）制定指标 For regions where the environment has been deteriorated, it is more appropriate to adopt （） for indicator settlement

    A．pressure-state-response框架 The pressure-state-response framework

    B．state-pressure-response框架 The state-pressure-response framework

    C．response-pressure-state框架 The response-pressure-state framework

    D．response-state-pressure框架 The response-state-pressure framework


    细嫩

  • 第4题：

    Such a database would be extremely costly to set up.

    A:destroy
    B:transfer
    C:update
    D:establish

    答案：D
    解析：
    这句话的意思是：要建立这么一个数据库花销会非常大。句中“set up”意为“建立”。四 个选项中A项意为“毁坏，毁灭”;B项意为“转移”;C项意为“更新，升级”;D项意为“建立”。 因此只有D项最为合适。

  • 第5题：

    对于环境已经恶化的区域，更适合采用state-pressure-response框架制定管理指标体系（）For an area where the environment has deteriorated, the State-Pressure-Response framework will be more suitable for the development of its management index system（）


    C答案：C优化开发区域是指国土开发密度已经较高、资源环境承载能力开始减弱的区域。

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