术语Circuit breaker意为（）。A、电路板断路器B、电路板控制器C、电路板装置D、电路板箱

题目

术语Circuit breaker意为（）。

  • A、电路板断路器
  • B、电路板控制器
  • C、电路板装置
  • D、电路板箱
相似考题

1.any pointer positionDue to failure of one of the carbon brushes the excitation voltage is lost on one alternator that operating in parallel.Then that alternator will()A.completely loose its share of the load causing the auxiliary engine to speed up.B.overload due to reduced voltage output and increased currentC.continue to share the active load(kw)but have high very reactive loadD.try to take all the load and so trip the main circuit breaker

2.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

3.A circuit breaker and a fuse have a basic similarity(类似) in that they both ______.A.can be reset to energize the circuitB.should open the circuit when overloadedC.will burn out when an over current flow developsD.should short the circuit when overloaded

4.You are attempting to parallel two AC.generators, and the synchroscope pointer revolving in the fast direction.This indicates that the frequency of the incoming machine isA.higher than the bus equencyB.lower than the bus equencyC.the same as the bus frequency but out of phase with itD.same as the bus frequency and the circuit breaker may be closed at

更多“术语Circuit breaker意为（）。”相关问题

  • 第1题：

    A circuit breaker and a fuse have a basic similarity in that they both______.

    A.can be reset to energize the circuit

    B.should open the circuit when overloaded

    C.will burn out when an over current flow develops

    D.should short the circuit when overloaded


    正确答案：B

  • 第2题：

    If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor ______．

    A.when the line pull reaches the rated winch capacity

    B.after the line pull exceeds the rated winch capacity

    C.after a short build-up of torque

    D.immediately


    正确答案：B

  • 第3题：

    文献注释有哪些主要名称术语，有何含义？传：意为转述，阐明经义。


    正确答案: 故：亦作诂，即以今言释古言。
    训：是解释之意，与诂连用，称训诂，或称诂训。
    微、隐：“微，谓释其微指。”隐与微略同。集解：一谓聚集经传，为之作解。一诸家解说，言同而意异。
    义疏：其体例与集解大致相同，只是更为详尽。
    疏、正义：不仅训释正文，而且还给前人注释作注。
    笺：指引申、发挥，或补充订正前人说法。

  • 第4题：

    在速度术语中，Largo的译意为（）

    • A、庄板
    • B、广板
    • C、慢板
    • D、柔板

    正确答案:B

  • 第5题：

    在速度术语中，Presto的译意为（）

    • A、行板
    • B、中板
    • C、快板
    • D、急板

    正确答案:D

  • 第6题：

    单选题
    Running an electric winch at slow speed over a long period of time causes（）.
    A

    the speed to be retarded by the friction brake

    B

    a load to go downward at full speed

    C

    the circuit breaker to turn off

    D

    the resistors to overheat and eventually burn out


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out （）
    A

    De-energize the applicable switchboard bus

    B

    Bypass the interlocks

    C

    Secure and tag the supply circuit breaker in the open position

    D

    Station a man at the circuit supply switch


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    The purpose of a main switchboard circuit breakers reverse-power trip is to （）.
    A

    prevent main circuit overload

    B

    protect the circuit breaker blowout coil

    C

    prevent alternator motorization

    D

    prevent low voltage tripout


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    A diesel generator has just been paralleled with an AC turbo-generator, but the load can not be properly divided.This could be caused by（）
    A

    an incorrect diesel generator governor speed droop adjustment

    B

    a faulty reverse power relay within the main circuit breaker assembly

    C

    unsynchronized isochronous load distribution adjustments

    D

    a different speed setting on each unit


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Fuses placed in series with a thermal trip-type circuit breaker are used for （）.
    A

    time-delay protection

    B

    short-circuit protection

    C

    short duration surge protection

    D

    sustained overload protection


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    A circuit breaker differs from a fuse in that a circuit breaker （）.
    A

    melts and must be replaced

    B

    is enclosed in a tube of insulating material with metal ferrules at each end

    C

    gives no visual indication of having opened the circuit

    D

    trips to break the circuit and may be reset


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    You are attempting to parallel two AC generators, and the syncope pointer is revolving in the fast directionThis indicates that the frequency of the incoming machine is （）.
    A

    higher than the bus frequency

    B

    lower than the bus frequency

    C

    the same as the bus frequency but out of phase with it

    D

    the same as the bus frequency and the circuit breaker may be closed at any pointer position


    正确答案： A
    解析： 暂无解析

  • 第13题：

    A circuit breaker differs from a fuse in that a circuit breaker ______.

    A.melts and must be replaced

    B.is enclosed in a tube of insulating material with metal ferrules(环) at each end

    C.gives no visual indication of having opened the circuit

    D.trips to break the circuit and may be reset


    正确答案：D

  • 第14题：

    SWITCH主空开闭合测试，设置P2.9.3.1 Allow breaker test为（），设置P2.9.3.2 Force breaker为（）


    正确答案:yes；yes

  • 第15题：

    （）原为建筑学上的术语。意为组合、构成、装配。引申借用到电影艺术中，即剪辑和组合。


    正确答案:蒙太奇（Montage）

  • 第16题：

    音乐术语Fortissimo汉语译意为（）Adagio汉语译意为（）Allgretto汉语译意为（）。


    正确答案:很强；柔板；小快板

  • 第17题：

    判断题
    FCA的术语意为货交至承运人。（）
    A

    对

    B

    错


    正确答案： 错
    解析： 暂无解析

  • 第18题：

    填空题
    SWITCH主空开闭合测试，设置P2.9.3.1 Allow breaker test为（），设置P2.9.3.2 Force breaker为（）

    正确答案： yes,yes
    解析： 暂无解析

  • 第19题：

    填空题
    音乐术语Fortissimo汉语译意为（）Adagio汉语译意为（）Allgretto汉语译意为（）。

    正确答案： 很强,柔板,小快板
    解析： 暂无解析

  • 第20题：

    单选题
    A ground in an electrical circuit outside the engine room （）.
    A

    cannot be detected tinder normal conditions

    B

    is of no consequence to engineering personnel

    C

    is indicated at the branch circuit breaker panel

    D

    is indicated by the ground detecting lamps on the main switchboard


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the listed precautions should be taken when cleaning the internals of a motor with compressed air?（）
    A

    Open the machine on both ends so as to allow the air and dust to escape

    B

    Be certain that the circuit breaker is opened and tagged on the feeder panel

    C

    Be certain that the air is clean and as dry as possible

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    A circuit breaker and a fuse have a basic similarity in that they both （）.
    A

    can be reset to energize the circuit

    B

    should open the circuit when overloaded

    C

    will burn out when an over current flow develops

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    术语Circuit breaker意为（）。
    A

    电路板断路器

    B

    电路板控制器

    C

    电路板装置

    D

    电路板箱


    正确答案： D
    解析： 暂无解析

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