An alternator is being paralleled with one on the line At the instant the circuit breaker is close, the frequency of the incoming alternator will normallyA.increaseB.not changeC.decreaseD.be exactly 60 hertz

题目

An alternator is being paralleled with one on the line At the instant the circuit breaker is close, the frequency of the incoming alternator will normally

A.increase

B.not change

C.decrease

D.be exactly 60 hertz

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参考答案和解析
正确答案：C
更多“An alternator is being paralleled with one on the line At the instant the circuit breaker ”相关问题

  • 第1题：

    [A] paralleled

    [B] counteracted

    [C] duplicated

    [D] contradicted


    正确答案：A

  • 第2题：

     Since the matter was extremely _______, we dealt with it immediately.

    A) tough B) tense

    C) urgent D) instant

     

     


    C 意思是事态紧急 我们迅速处理了这件事
    urgent是紧急的意思

  • 第3题：

    Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) .It is a ( ) information transfer mode.

    A.connection oriented

    B.connectionless

    C.high bandwidth utilization

    D.poor real-time


    正确答案：D

  • 第4题：

    （75）

    A.sequence

    B.line

    C.board

    D.circuit


    正确答案：D
    同71题解析

  • 第5题：

    WhichofthefollowingdevicessetstheframingtypeonaT1circuit?()

    A.Transceiver

    B.GatewayModem

    C.Router

    D.CSU/DSU


    参考答案：D

  • 第6题：

    Circuit-switching technology is used in Public Switched Telephone Network（PSTN）, Global System for Mobile Communications（GSM） and Code Division Multiple Access（CDMA）. It is a （ ） information transfer mode.

    A.Connection oriented
    B.connectionless
    C.High bandwidth utilization
    D.Poor-real-time

    答案：A
    解析：
    电路交换技术用于PSTN、GSM和CDMA，它是一种（72）信息传输模式。

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