[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fbENukN8GBVtr9UO6u6KLow48U8KyzD1mQMp1IgxrBc8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-10-12 23:48:41",99468392,[8,9,10,11],"过电压继电器","熔断器","热继电器","时间继电器",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},23,"173c05badacd5668b64c50b9733d8344","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc30091d3a9c65bff9932de114503275f.JPG","机床电气","7995be4744bb41eb93481f24d51ecedf","第一章测验","在电气控制线路中,若对电动机进行过载保护,则选用的低压电器是",[21,32,35,44,52,61,66,74,83,92],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],99468388,[25,26,27,28],"10A","100A","10~100A","大于100A","低压断路器的型号为DZ10-100,其额定电流是","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],99468394,[39,40,41,42],"电气原理图","电器位置图","安装接线图","电器结构图","下列不属于机械设备的电气工程图是( )A. B. C. D",{"answer":45,"createTime":5,"id":46,"options":47,"question":51,"source":30,"type":31},[],99468396,[48,49,10,50],"闸刀开关","接触器","按钮开关","电路的失压保护,常由( )来实施",{"answer":53,"createTime":5,"id":54,"options":55,"question":60,"source":30,"type":31},[],99468398,[56,57,58,59],"电动机立即停转","电动机转速降低、温度升高","电动机出现振动及异声","电动机反转","三相异步电动机在运行时出现一相电源断电,对电动机带来的影响主要是",{"answer":62,"createTime":5,"id":63,"options":64,"question":65,"source":30,"type":31},[],99468400,[39,40,41,42],"下列不属于机械设备的电气工程图是",{"answer":67,"createTime":68,"id":69,"options":70,"question":73,"source":30,"type":31},[],"2023-10-12 23:48:42",99468402,[9,71,72,11],"速度继电器","低压断路器","下列低压电器中,能起到过流保护、短路保护、失压和零压保护的是",{"answer":75,"createTime":68,"id":76,"options":77,"question":82,"source":30,"type":31},[],99468404,[78,79,80,81],"1500","1800","1200","2000","低压电器是指工作在交流( )V以下的电器装置",{"answer":84,"createTime":68,"id":85,"options":86,"question":91,"source":30,"type":31},[],99468407,[87,88,89,90],"相同","不相同","与电压无关","与电压成正比","交流接触器在不同的额定电压下,额定电流",{"answer":93,"createTime":68,"id":94,"options":95,"question":100,"source":30,"type":31},[],99468409,[96,97,98,99],"电磁吸力大于弹簧反力","电磁吸力小于弹簧反力","电磁吸力等于弹簧反力","上述都不对","电磁机构中衔铁可靠地被吸住的条件是"]