【判断题】【消耗次数:1】
特高压电网是指交流1000kV电网和直流±800kV输电系统。()
正确
错误
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相关题目
【判断题】 超高压电网是指交流220kV、330kV、500kV、750kV电网和直流±500kV输电系统。()
①  正确
②  错误
【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】 ()年,中国正式开启“特高压交流输电前期研究”项目。
①  1985
②  1983
③  1986
④  1984
【单选题】 高压电的临界值是
①  1KV
②  5KV
③  8KV
④  10KV
【单选题】 根据我国规定,三相交流电力网的额定电压等级有: 380V 、 660V 、 3kV 、 6kV 、 l0kV 、 35 kV 、 65 kV 、 110kV 、 220kV 、 330kV 、 500kV 。
①  正确
②  错误
【判断题】 电力系统是由发电厂、变电站、输电网、配电网和电力用户等环节组成的电能生产与利用系统。
①  正确
②  错误
【判断题】 电力系统是由发电厂、变电站、输电网、配电网和电力用户等环节组成的电能生产与利用系统。()
①  正确
②  错误
【判断题】 对于点火系统来说,可以存在有低压电无高压电的故障
①  正确
②  错误
【判断题】 高压断中器的主要作用是在正常情况下可以接通和断开高压电路的空载和负荷电流,当系统发生故障时,在断电保护的配合下能迅速切断故障电流,保证电网的安全运行。
①  正确
②  错误
【单选题】 下列关于特高压现状和挑战说法错误的是( )
①  中国用电量激增
②  中国能源分布不均,供需失衡
③  特高压直流技术与交流技术发展不均衡
④  输送容量大、送电距离长、线路损耗高、工程投资大
随机题目
【单选题】 Danish bacon and eggs [] a good solid English breakfast.
①  makes
②  make
【单选题】 She happily deposits the money she has earned teaching English in her savings account. Find any misplaced modifier in the sentence
①  happily
②  she has earned
③  in her savings account
【单选题】 Well have a picnic in the park this Saturday [] it rains or it is very cold.
①  since
②  if
③  until
④  unless
【单选题】 His family [] divided opinions on many issues.
①  is
②  are
【单选题】 There were some chairs left over[] everyone had sat down.
①  when
②  until
③  that
④  where
【单选题】 These candidates have vague notions of serving the company, [] they have never taken trouble to find out the actual tasks they will be required to do.
①  or
②  and
③  but
④  so
【单选题】 Which sentence is correct?
①  On entering the classroom, the students stood up and said, Good morning!
②  On entering the classroom, the teacher was greeted by the students with Good morning!
【单选题】 When their party came back to the camp site, ours arrrived two hours earlier. Identify the mistake in the sentence.
①  When
②  ours
③  arrived
④  earlier
【单选题】 People dont like to buy books in this bookstore with hard covers. Find any misplaced modifier in the sentence.
①  this
②  with hardcover
【单选题】 People in Anhui are proud of [] they have achieved in the last ten years.
①  that
②  which
③  what
④  how