【单选题】【消耗次数:1】
转子铁芯是主磁路的一部分由()厚的硅钢片迭压而成。
0.5mm
0.1mm
1mm
参考答案:
复制
纠错
相关题目
【单选题】 定子铁芯是主磁路的一部分,由()厚的硅钢片迭压而成。
①  0.1mm
②  1mm
③  0.5mm
【单选题】 变压器的铁心采用0.35—0.5mm厚的硅钢片叠压制造,其主要的目的是为了降低().
①  A.铜耗
②  B.磁滞损耗
③  C.涡流损耗
④  D.磁滞和涡流损耗
【判断题】 直流电动机的主磁极铁心采用硅钢片叠装而成的。
①  正确
②  错误
【单选题】 墙厚240mm,墙下条形基础的宽度为900mm,若台阶宽高比为1:1.25,则刚性基础的高度至少应大于多少mm?
①  250
②  412.5
③  330
④  264
【单选题】 一砖半标准砖墙是指墙厚为()mm。
①  360
②  365
③  350
④  180
【单选题】 女儿墙的弯起部分按()mm计算,天窗弯起部分按()mm计算
①  250;500
②  200;500
③  250;250
④  200;200
【判断题】 变压器的铁心不用整块硅钢,而用相互绝缘硅钢片做成,这主要考虑的是减少涡流损失。
①  正确
②  错误
【判断题】 变压器的铁心采用硅钢片制成,这是为了减少铁损。
①  正确
②  错误
【单选题】 板的受力钢筋间距,当板厚h≤150mm时,不应大于 ( ) 。
①  120mm
②  200mm
③  300mm
④  150mm.
【单选题】 板的受力钢筋间距当板厚h≤150mm时不应大于 ( )。
①  120mm
②  200mm
③  300mm
④  150mm
随机题目
【单选题】 A: Is there anything I can do for you? B: [填空], there is something.
①  No, nothing
②  Well, now that you ask
③  Nothing I can think of
④  If you ask me
【单选题】 A: I like this flat very much, but Id like to come and see it on Friday at 5 oclock. Will that be convenient? B: [填空].
①  Its good for you
②  Thats right
③  Its thoughtful of you
④  Thats fine with me
【单选题】 A: Mr. Wang, Im very much impressed. Theres no need for further questions. B: [填空].
①  Really? Thats great
②  Sorry, I didnt mean to bother you
③  Thank you for your time
④  Its my pleasure
【单选题】 A: Id like to ask you a question. B: [填空]
①  Yes, go ahead.
②  Sorry, Im kind of busy.
③  OK, whats up?
④  Yeah, whats on your mind?
【单选题】 A: Its Franco Rossi. [填空]? B: Yes, Im calling about the flat.
①  Whos that
②  Whats wrong
③  May I help you
④  Whats up
【单选题】 A: Would you like come to dinner tonight? B: [填空].
①  Lets put it off till later
②  Thanks, but I have to work overtime
③  I really cant. Youll not mind, I think
④  No, I dont want to
【单选题】 A: Thanks to John, weve lost our most important client. B: Ive told you hes not proper for the position. A: [填空].
①  I should have listened to you
②  I dont really agree with you
③  It doesnt matter. I trust him
④  Thank you for being so helpful
【单选题】 A: How long does it take to get to your house by bus? B: [填空]. I think the tube is your best choice. A: Many thanks.
①  I dont know yet
②  It depends on the traffic
③  Let me see
④  Youll consider the distance
【单选题】 A: Hi. My name is David Manning. Im from Britain. B: Im Bill Clinton. Glad to meet you. What year are you? A: [填空].
①  Im a first-year student
②  I was born in 1990
③  Ive been here for years
④  Im 19 years old
【单选题】 下列不属于我国公民基本权利的有()。
①  迁徙自由权
②  受教育权
③  人身自由权
④  选举权和被选举权