Which of the following tools is BEST used to measure voltage and amperage from a power source?()A. Loopback PlugB. MultimeterC. Power Supply TesterD. Extension Magnet

题目
Which of the following tools is BEST used to measure voltage and amperage from a power source?()

A. Loopback Plug

B. Multimeter

C. Power Supply Tester

D. Extension Magnet

相似考题

1.You’re going to have a quiz ( )by another two in the ( )month.A. followed,followedB. followed,followingC. following,followedD. following,following

2.某企业职工关系EMP(E_no，E_name，DEPT，E_addr，E_tel)中的属性分别表示职工号、姓名、部门、地址和电话；经费关系FUNDS(E_no,E_limit，E_used)中的属性分别表示职工号、总经费金额和己花费金额。若要查询部门为"开发部"且职工号为"03015"的职工姓名及其经费余额，则相应的SQL语句应为: SELECT(60) FROM(61) WHERE(62)A.EMP.E_no,E_limit-E_usedB.EMP.E_name,E_used-E_limitC.EMP.E_no,E_used-E_limitD.EMP.E_name,E_limit-E_used

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4.Foroccasionalheavyloads.twocranescanbearrangedtoworktogether.Theoperatingofordeckcranemotorsmaybehydraulicorelectric()A、principleB、mediumC、instructionD、voltage

参考答案和解析
参考答案：B
更多“Which of the following tools is BEST used to measure voltage and amperage from a power source?() ”相关问题

  • 第1题：

    A network administrator wants to permit Telnet traffic initiated from the address book entry the10net in a zone called UNTRUST to the address book entry Server in a zone called TRUST.However, the administrator does not want the server to be able to initiate any type of traffic from the TRUST zone to the UNTRUST zone.Which configuration statement would correctly accomplish this task?（）

    A. from-zone UNTRUST to-zone TRUST { policy DenyServer { match { source-address any; destination-address any; application any; } then { deny; } } } from-zone TRUST to-zone UNTRUST { policy AllowTelnetin { match { source-address the10net; destination-address Server; application junos-telnet; } then { permit; } } }

    B. from-zone TRUST to-zone UNTRUST { policy DenyServer { match { source-address Server; destination-address any; application any; } then {deny; } } } from-zone UNTRUST to-zone TRUST { policy AllowTelnetin { match { source-address the10net; destination-address Server; application junos-telnet; } then { permit; } } }

    C. from-zone UNTRUST to-zone TRUST { policy AllowTelnetin { match { source-address the10net; destination-address Server; application junos-ftp; } then { permit; } } }

    D. from-zone TRUST to-zone UNTRUST { policy DenyServer { match { source-address Server; destination-address any; application any; } then { permit; } } } from-zone UNTRUST to-zone TRUST { policy AllowTelnetin { match {source-address the10net; destination-address Server; application junos-telnet; } then { permit; } } }


    参考答案：B

  • 第2题：

    Which of the following characteristics must be matched depending on the specifications of thepower grid for the country a PSU will be utilized in?()

    A. Wattage

    B. Amperage

    C. Resistance

    D. Voltage


    参考答案：D

  • 第3题：

    WhichstatementistrueaboutForeignExchangeStation(FXS)portsonarouter?()

    A.TheFXSinterfaceallowsananalogconnectiontobedirectedatthepublicswitchedtelephonenetwork（PSTN’s）centraloffice.

    B.TheFXSinterfaceconnectsdirectlytoastandardtelephone，faxmachine，orsimilardeviceandsuppliesring，voltage，anddialtone.

    C.TheFXSinterfaceconnectsdirectlytoanIPphoneandsuppliesring，voltage，anddialtone.

    D.TheFXSinterfaceconnectsdirectlytoISDNvoicechannels.


    参考答案：B

  • 第4题：

    You will want two trees about ten feet apart, 选择

    You will want two trees about ten feet apart, from _____ to suspend your tent.

    (A) there                         (C) which

    (B) them                              (D) where

     


    选择D
    可改写为you will want two tress about ten feet apart, to suspend your tent from.
    只要有介词摆在空格之前，选项是which, them ,there ,where肯定是which
    介词+which+动词不定式，整体做定语

  • 第5题：

    WhichstatementsistrueaboutForeignExchangeStation(FXS)portsonarouter?()

    A.theFXSinterfaceallowsananalogconnectiontobedirectedatthepublicswitchedtelephonenetwork（PSTN’s）centraloffice

    B.theFXSinterfaceconnectdirectlytoastandardtelephone，faxmachine，orsililardeviceandsuppliesring，voltage，anddialtone

    C.theFXSinterfaceconnectdirectlytoanIPphoneandsuppliesring，voltage，anddialtone

    D.theFXSinterfaceconnectdirectlytoISDNvoicechannels


    参考答案：B

  • 第6题：

    某企业职工关系EMP（E_no，E_name，DEPT，E_addr，E_tel）中的属性分别表示职工号、姓名、部门、地址和电话；经费关系FUNDS（E_no，E_limit，E_used）中的属性分别表示职工号、总经费金额和己花费金额。若要查询部门为"开发部"且职工号为"03015"的职工姓名及其经费余额，则相应的SQL语句应为:SELECT（请作答此空）FROM（ ）WHERE（ ）

    A.EMP.E_no,E_limit-E_used
    B.EMP.E_name,E_used-E_limit
    C.EMP.E_no,E_used-E_limit
    D.EMP.E_name,E_limit-E_used

    答案：D
    解析：
    本题考查数据库SQL语句的基础知识。查询的结果为职工姓名E_name，和经费余额，经费余额=总经费金额-已花费金额（E_limit-E_used）。

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