[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$feuURBAtCQYdhr4nvKQpm45XCeydrr8CGjsv7H471gl4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":30,"type":31},[],"2025-04-10 18:50:10",182517011,[8,9,10,11],"直流电阻","绝缘电阻","耐压强度","机械强度",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":16},50,"9a6e36b7a9e702f7ca72041e82a61ab0","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbb062ff6068e05b64e1dc4486da29b2a.jpg","电工技术","exam_151643884","电线电缆的绝缘厚度与()无关",[20,32,41,50,59,68,77,86,95,98],{"answer":21,"createTime":22,"id":23,"options":24,"question":29,"source":30,"type":31},[],"2025-04-10 18:50:09",182516962,[25,26,27,28],"电源两相","电源三相","电源一相","电源","按钮联锁正反转控制线路的优点是操作方便,缺点是容易产生()故","v1",0,{"answer":33,"createTime":22,"id":34,"options":35,"question":40,"source":30,"type":31},[],182516964,[36,37,38,39],"仅保护电动机","只保护电源","电动机与电源均保护","都不对","电动机正反转控制电路中的保护环节是()",{"answer":42,"createTime":22,"id":43,"options":44,"question":49,"source":30,"type":31},[],182516969,[45,46,47,48],"减小磁阻和铜损","减小磁阻和铁损","减小涡流及剩磁","减小磁滞和矫顽力","变压器铁心采用硅钢片的目的是()",{"answer":51,"createTime":22,"id":52,"options":53,"question":58,"source":30,"type":31},[],182516976,[54,55,56,57],"交流50Hz或60Hz,额定电压1200V及以下,直流额定电压1500V及以下","交直流电压1200V及以上","交直流电压500V及以下","交直流电压3000V及以下","低压电器,因其用于电路电压为( ),故称为低压电器",{"answer":60,"createTime":22,"id":61,"options":62,"question":67,"source":30,"type":31},[],182516983,[63,64,65,66],"4","5","6","7","双重联锁正反转控制电路,在实际配线时,若采用一个三联复合按钮,则进行按钮的导线最少为()根",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],182516990,[72,73,74,75],"电源电压","电源电流","电源相序","电源频率","异步电动机的反接制动是指改变()",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],182516997,[81,82,83,84],"制动平稳","能耗较小","制动迅速","定位准确","反接制动的优点是( )",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":31},[],182517004,[90,91,92,93],"熔断器","热继电器","互锁环节","自锁环节","在正反转控制电路中,()可以防止正反转切换时发生短路",{"answer":96,"createTime":5,"id":6,"options":97,"question":18,"source":30,"type":31},[],[8,9,10,11],{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],182517020,[102,103,104,105],"测量准确度高","只能用交流","只能用直流","过载能力较大","与电磁式仪表相比,对电动式仪表描述正确的是()"]