[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fMd-Z2ItQ-UFTyPRNac7H8OTmQkE49ac-yWfibil9Mcs":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":46,"origin":104,"createTime":24},962761597,"v2","打底焊焊条与焊接方向的倾角度为( ),焊条与试板左右转角为( )度左右",[8,9,10,11],"30°~40° 70°","70°~80° 45°","70°~80° 90°","90°~80° 180°",[],[14,25,36,47,57,61,68,78,84,94],{"id":15,"source":5,"question":16,"options":17,"answer":20,"related":21,"type":22,"origin":23,"createTime":24},962761568,"手工钨极氩弧焊时,为增加保护效果,氩气的流量越大越好.( )",[18,19],"对","错",[],[],3,null,"2023-05-07T22:33:37+08:00",{"id":26,"source":5,"question":27,"options":28,"answer":33,"related":34,"type":35,"origin":23,"createTime":24},962761570,"在坡口中留钝边是为了防止烧穿,钝边的尺寸要保证焊缝( )",[29,30,31,32],"不焊透","能焊透","不被烧穿","能烧穿",[],[],1,{"id":37,"source":5,"question":38,"options":39,"answer":44,"related":45,"type":46,"origin":23,"createTime":24},962761574,"从强度角度来看,比较理想的接头形式是( )",[40,41,42,43],"对接接头","角接接头","搭接接头","丁字接头",[],[],0,{"id":48,"source":5,"question":49,"options":50,"answer":55,"related":56,"type":35,"origin":23,"createTime":24},962761591,"焊条药皮具有( )方面的作用",[51,52,53,54],"保护","冶金","改善焊接性能","导电",[],[],{"id":4,"source":5,"question":6,"options":58,"answer":59,"related":60,"type":46,"origin":23,"createTime":24},[8,9,10,11],[],[],{"id":62,"source":5,"question":63,"options":64,"answer":66,"related":67,"type":46,"origin":23,"createTime":24},962761599,"两焊件端面相对平行的接头叫作( )",[40,41,65,42],"端接接头",[],[],{"id":69,"source":5,"question":70,"options":71,"answer":76,"related":77,"type":46,"origin":23,"createTime":24},962761621,"钨极氩弧焊采用小电流焊接时,电弧的静特性曲线在U形曲线的( )",[72,73,74,75],"下降段","水平段","上升段","直线段",[],[],{"id":79,"source":5,"question":80,"options":81,"answer":82,"related":83,"type":22,"origin":23,"createTime":24},962761623,"盖面层焊接前需仔细清理熔渣及飞溅物,如填充层有高低不平处,应修磨平整后再开始焊接.()",[18,19],[],[],{"id":85,"source":5,"question":86,"options":87,"answer":92,"related":93,"type":46,"origin":23,"createTime":24},962761625,"钨极氩弧焊时,电弧电压过高会产生未焊透和( )等焊接缺欠",[88,89,90,91],"裂纹","夹钨","保护不良","夹渣",[],[],{"id":95,"source":5,"question":96,"options":97,"answer":102,"related":103,"type":46,"origin":23,"createTime":24},962761669,"船型角焊缝打底采用( )运条方法",[98,99,100,101],"直线型","锯齿","反月牙","斜圆圈",[],[],{"courseName":105,"courseImg":105,"workName":106,"workId":107,"count":46,"courseId":108},"","焊接操作技术教程考试","51507736","1000081178"]