In the refrigeration system, a shortage of refrigerant is indicated byA.the compressor short cycling on high pressure cut out switchB.high suction pressureC.high head pressureD.bubbles in the sight glass

题目

In the refrigeration system, a shortage of refrigerant is indicated by

A.the compressor short cycling on high pressure cut out switch

B.high suction pressure

C.high head pressure

D.bubbles in the sight glass


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  • 第1题:

    文中( 3 )处正确的答案是( )。

    A.scarcity

    B.1ack

    C.deficiency

    D.shortage


    正确答案:D

  • 第2题:

    Is Mary______to join in us

    A.supposed
    B.exposed
    C.supported
    D.indicated

    答案:A
    解析:

  • 第3题:

    SHO的英文全称(字母均小写)


    observation##%_YZPRLFH_%##observations

  • 第4题:

    模式下,如果键入system,则表示

    A.sysname
    B.system-view
    C.system-log
    D.system-name

    答案:B
    解析:
    注意常用的缩写 ,sys是system-view,进入系统视图。

  • 第5题:

    GDI+主要封装于命名空间()之中。

    A.System.Drawing

    B.System.Net

    C.System.Xml

    D.System.IO


    群件

  • 第6题:

    输气站——又称为压气站。核心设备和建筑:压缩机、压缩机车间。Gas station -- also known as compressor station. Core equipment and construction: compressor, compressor workshop.


    气压站