【判断题】【消耗次数:1】
磁电系电流表,要扩大其量程,就要加接分压器。
正确
错误
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相关题目
【判断题】 磁电系电压表,要扩大其量程,可以并联一个附加电阻。
①  正确
②  错误
【判断题】 扩大交流电流表量程的方法,常采用电流互感器。
①  正确
②  错误
【判断题】 测量电流时,要根据电流大小选择适当量程的电流表,不能使电流大于电流表 的最大量程。
①  正确
②  错误
【判断题】 钳式电流表实际上是电压互器器、电流表的组合。
①  正确
②  错误
【判断题】 用电流表测电流必须将电流表与电路并联。
①  正确
②  错误
【多选题】 被测线路的电流要()钳表的量程。
①  A.低于
②  B.高于
③  C.大于
④  D.随便都可以
【判断题】 电流表的内阻越小越好。
①  正确
②  错误
【多选题】 钳形电流表不是利用()的原理制造的。
①  A.电压互感器
②  B.电流互感器
③  C.变压器
④  D.电流表
【判断题】 交流钳形电流表可测量交直流电流。
①  正确
②  错误
【判断题】 用高压钳型电流测量电流时,应注意钳形电流表的电压等级。
①  正确
②  错误
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【单选题】 I_______here since I moved here.
①  will work
②  worked
③  work
④  have been working
【单选题】 I thought you________like something to read,so I have bought you some books.
①  may
②  might
③  could
④  must
【单选题】 A hunter is a man who______ animals.
①  catch
②  catches
③  will catch
④  was catching
【单选题】 If they______to do this work,he might do it some other way.
①  were
②  should
③  will
④  can
【单选题】 “I love you” is never a touch on lightly; its the signal ______ a romantic relationship is serious,or an indication of closeness between parents and children.
①  that
②  why
③  when
④  whether
【单选题】 “ Has he seen this film ? ” “Yes. He______ it several days ago.”
①  saw
②  has seen
③  had seen
④  was seeing
【单选题】 The thought flashed across my mind: “By some ?means or______ she has some information about my engagement. But how?”
①  other
②  others
③  the other
④  the others
【单选题】 You cant imagine what great trouble they have________the problem________.
①  to solve;being talked about
②  solving;discussing
③  to solve;to talk about
④  solving;being discussed
【单选题】 When I saw Mary , she _______on the piano.
①  is playing
②  plays
③  was playing
④  played
【单选题】 “When _______school begin ?” “Next Monday.”
①  has
②  does
③  did
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