[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhn0j4cMlEg1MGFjsLctXWti30L88Ro5bFXXdUT7qUxQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-05-29 23:59:20",192159209,[8,9,10,11],"起动机","发动机","蓄电池","发电机",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},23,"98c56c3423b6ef62e62e31457cc43b38","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","电动汽车控制技术","exam_151173598","期中测试","纯电动汽车电机的能量直接来源于( )",[21,26,36,45,55,65,74,83,92,101],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":28,"id":29,"options":30,"question":35,"source":24,"type":25},[],"2025-05-29 23:59:21",192159213,[31,32,33,34],"电源和电动机的调速控制装置","驱动电机","驱动力传动","电力驱动及控制系统","电动汽车的核心是( ),也是区别于内燃机汽车的最大特征",{"answer":37,"createTime":28,"id":38,"options":39,"question":44,"source":24,"type":25},[],192159216,[40,41,42,43],"整流","减小摩擦力","整理","逆变","直流电动机中,换向器起( )作用",{"answer":46,"createTime":47,"id":48,"options":49,"question":54,"source":24,"type":25},[],"2025-05-29 23:59:22",192159225,[50,51,52,53],"只能做电动机","既能做电动机,又能做发电机","只能做发电机","只能做调相机","理论上,异步电机( )",{"answer":56,"createTime":57,"id":58,"options":59,"question":64,"source":24,"type":25},[],"2025-05-29 23:59:23",192159228,[60,61,62,63],"Z型","V型","星型","三角形或星型","在三相电源中,一般都联成( )",{"answer":66,"createTime":57,"id":67,"options":68,"question":73,"source":24,"type":25},[],192159233,[69,70,71,72],"1500 rpm","3000 rpm","2000 rpm","1000 rpm","某同步发电机的极对数p=1,那么转速n=( )",{"answer":75,"createTime":57,"id":76,"options":77,"question":82,"source":24,"type":25},[],192159236,[78,79,80,81],"转子绕组","定子绕组","铁芯","气隙","三相异步电机中产生旋转磁场的部件是( )",{"answer":84,"createTime":57,"id":85,"options":86,"question":91,"source":24,"type":25},[],192159242,[87,88,89,90],"4000-10000","12000-15000","4000-6000","&gt;15000","永磁同步电机的转速为( )r\u002Fmin",{"answer":93,"createTime":57,"id":94,"options":95,"question":100,"source":24,"type":25},[],192159246,[96,97,98,99],"交流异步电机","开关磁阻电机","永磁同步电机","无刷直流电机","以特斯拉为代表的美国电动汽车常使用的驱动电机为( )",{"answer":102,"createTime":103,"id":104,"options":105,"question":110,"source":24,"type":25},[],"2025-05-29 23:59:24",192159254,[106,107,108,109],"4","3","1","2","某两极异步电机的转速为2940 r\u002Fmin,则这台电机的转差率为( )%"]