[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fUDZyPBDvmoBEyhVEbX0B7GGrnAzZuoa2fsawRTF_RGg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-11-22 16:21:56",239414237,[8,9,10,11],"h9","h8","k7","D10",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},11,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_48331268","任务4.2-1知识检测","普通平键的键宽公差带代号一般为( )",[21,32,35,42,51,60,66,75,84,93],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],239414236,[25,26,27,28],"基孔制","基轴制","混合制","无基准制","平键连接中,键与键槽的配合通常采用( )","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":41,"source":30,"type":31},[],239414238,[39,11,40,9],"H7","P9","松连接(如导向平键)的轮毂槽宽度公差带代号是( )",{"answer":43,"createTime":5,"id":44,"options":45,"question":50,"source":30,"type":31},[],239414239,[46,47,48,49],"游标卡尺","塞规","千分尺","环规","测量平键槽宽度时,优先选用的量具是( )",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":30,"type":31},[],239414240,[55,56,57,58],"键的强度","装配性","键槽深度","表面粗糙度","平键连接中,键槽的对称度公差主要影响( )",{"answer":61,"createTime":5,"id":62,"options":63,"question":65,"source":30,"type":31},[],239414241,[39,64,11,40],"N9","正常负载的键连接中,轴槽宽度公差带通常选用( )",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":30,"type":31},[],239414242,[70,71,72,73],"t","t2","t1","d - t","轮毂槽深度的标注尺寸是( )",{"answer":76,"createTime":5,"id":77,"options":78,"question":83,"source":30,"type":31},[],239414243,[79,80,81,82],"间隙配合","过盈配合","过渡配合","无法确定","若键宽为10h8,轴槽宽为10N9,则键与轴槽的配合性质是( )",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":30,"type":31},[],239414244,[88,89,90,91],"9 mm","14 mm","50 mm","5 mm","某轴径d=50mm,选用14×9平键,其轴槽宽度公称尺寸为( )",{"answer":94,"createTime":5,"id":95,"options":96,"question":101,"source":30,"type":31},[],239414245,[97,98,99,100],"4.8 mm","40 mm","5.2 mm","无法计算","测量轴径d=40mm,测得轴槽深度尺寸为35.2mm,则实际槽深t值为( )"]