【判断题】【消耗次数:1】
变压器容量,即视在功率,其单位是千伏安。
正确
错误
参考答案:
复制
纠错
相关题目
【判断题】 变压器的额定容量是指变压器输出的视在功率。
①  正确
②  错误
【判断题】 变压器空载运行时的功率是视在功率?
①  正确
②  错误
【判断题】 自耦变压器的绕组容量是变压器容量的。
①  正确
②  错误
【单选题】 自耦变压器的绕组容量与变压器容量的关系是()。
①  <imgwidth="279"height="113"src="http://wljy.whut.edu.cn:80/uploadfiles/word/DJYTD.files/DJYTD25960.png">
②  <imgwidth="235"height="60"src="http://wljy.whut.edu.cn:80/uploadfiles/word/DJYTD.files/DJYTD26076.png">
③  <imgwidth="273"height="113"src="http://wljy.whut.edu.cn:80/uploadfiles/word/DJYTD.files/DJYTD26191.png">
【单选题】 自耦变压器的绕组容量与变压器容量的关系是()。
【单选题】 在我国,特高压是指( )千伏以上的直流电和1000千伏以上的交流电。
①  ±600
②  ±800
③  ±1000
④  ±1200
【单选题】 变压器运行中()无功功率。
①  发出
②  消耗
③  不发出、不消耗
④  无法确定发出或消耗
【判断题】 选择变压器时,一般的,对于较重要负荷,要考虑2台以上变压器,变压器容量按70%原则确定。
①  正确
②  错误
【单选题】 当变压器的电压比大于1 时,变压器为( )。
①  升压变压器
②  加压变压器
③  降压变压器
【单选题】 变压器初级绕组的输入功率( )次级绕组的输出功率。
①  大于
②  可能小于也可能等于
③  小于
④  等于
随机题目
【单选题】 This organization brought Western artists together in the hope of making more of an impact on the art community ____any of them could individually and to promote Western art by women.
①  rather than
②  rather
③  than
④  other than
【单选题】 Gone With The Wind is a ____ movie.
①  remarkable
②  perfect
③  indispensable
④  outstanding
【单选题】 The message is clear: Just as tea and banana can’t go together, ______ should the son of a low class family expect to marry the daughter of a nobleman.
①  either
②  not
③  neither
④  nor
【单选题】 The ____ Court is the highest court in the United States.
①  Superior
②  Super
③  Supreme
④  Great
【单选题】 Peter could hardly catch what I said, _____ he?
①  could
②  couldn’ t
③  did
④  didn’ t
【单选题】 If you don’ t go to his birthday party next Friday,_____.
①  so do I
②  so will I
③  nor do I
④  nor will I
【单选题】 A culture in which the citizens share similar religious beliefs and values is more likely to have laws that represent the wishes of its people than where citizens come from _________ backgrounds.
①  identical
②  dramatic
③  extensive
④  diverse
【单选题】 _____ is it_____ made Peter_____ he is today?
①  What; that; that
②  That; that; what
③  What; what; that
④  What; that; what
【单选题】 It was during summer breaks that we first taste the satisfaction work that ____ into hard currency.
①  translates
②  transfers
③  transplants
④  transmits
【单选题】 At her word she stood up and walked away, stopping at the window to pull back the curtain and ____.
①  look round
②  look out
③  look up
④  look on