[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f_KHp-Jsd-xrYhd42wXQ6Osb_whng9JMMVGQ7uCsp3xY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":99},[],"2023-10-26 04:07:05",101639516,[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc5024baca778492b4c0e390f321ba0e1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffd89ec77bda1c4af584a6d91e2163bbf.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb5885f9ebfa55473522f4cc8875cea42.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5f632f54da7360c5b3d6953569c5e121.png\">",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},51,"a05d63525839afb5848053268b04e1a5","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fba69365f07c236529f90f59d7b1f3426.gif","气压传动与PLC控制","4ee378075bb2407ab8e9070a3fbe6b46","工单2——板材成型装置","以下是双压阀的符号图的是",[21,32,41,50,59,71,80,90,100,109],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],101639505,[25,26,27,28],"左腔","右腔","有杆腔","无杆腔","双作用气缸活塞的往返运动是依靠压缩空气从缸内被活塞分隔开的两个腔室( )交替进入和排出来实现的,压缩空气可以在两个方向上作功","v1",1,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],101639507,[36,37,38,39],"加压控制","卸压控制","差压控制","单边气压控制","气压控制换向阀是利用气压力来实现换向的,简称气控阀.根据控制方式的不同可分为( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],101639509,[45,46,47,48],"单边气控换向阀","双边气控换向阀","三边气控换向阀","无气控换向阀","常用加压控制气控阀有( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],101639510,[54,55,56,57],"当气控口12没有气压信号时,1关闭,2,3导通","当气控口12没有气压信号时,1,2导通,3关闭","当气控口12有气压信号时,1关闭,2,3导通","当气控口12有气压信号时,1,2导通,3关闭","图示气控换向阀的结构原理图可知( )\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F10162d7567b84c7d1d1d94b816585cce.png\">\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F65bc82f52bdbd0a86b26540d5b6681ff.png\">",{"answer":60,"createTime":5,"id":61,"options":62,"question":70,"source":30,"type":31},[],101639511,[63,64,65,66,67,68,69],"当只有1有气压输入时,2无气压输出","当只有3有气压输入时,2无气压输出","当1、3有气压输入时,2无气压输出","当1、3有气压输入时,2有气压输出","当1口的气压为0.6MPa,3口的气压为0.4MPa时,无气压输出","当1口的气压为0.6MPa,3口的气压为0.4MPa时,有气压输出,且为0.4MPa","当1口的气压为0.6MPa,3口的气压为0.4MPa时,有气压输出,且为0.6MPa","根据下图双压阀的结构原理图可知\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0d9fd56e06293f365f0636ff5bf5f53f.png\">",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],101639512,[75,76,77,78],"用很小的移动量就可以使阀完全开启,阀流通能力强,因此便于设计成紧凑的大流量阀","抗粉尘和污染能力强,对空气的过滤精度及润滑要求不高,适用于环境比较恶劣的场合","当阀口较多时,结构太复杂,所以一般用于三通或二通阀","因为有阻碍换向的背压存在,阀芯关闭紧密,泄漏量小,但换向阻力也较大","截止式换向阀",{"answer":81,"createTime":5,"id":82,"options":83,"question":89,"source":30,"type":31},[],101639513,[84,85,86,87,88],"换向行程长,即阀门从完全关闭到完全开启所需的时间长","切换时,没有背压阻力,所需换向力小,动作灵敏","结构具有对称性,作用在阀芯上的力保持轴向平衡,阀容易实现记忆功能.即控制信号在换向阀换向完成后即使消失,阀芯仍能保持当前位置不变","阀芯在阀体内滑动,对杂质敏感,对气源处理要求较高","通用性强,易设计成多位多通阀.只要稍微改变阀套或阀芯的尺寸、形状就能实现机能的改变","滑阀式换向阀",{"answer":91,"createTime":5,"id":92,"options":93,"question":98,"source":30,"type":99},[],101639514,[94,95,96,97],"小,大于","小,小于","大,大于","大,小于","双作用气缸是利用压缩空气交替作用于活塞上实现伸缩运动的,由于回缩时压缩空气有效作用面积较 ,所以产生的力要 伸出时产生的推力",0,{"answer":101,"createTime":5,"id":102,"options":103,"question":108,"source":30,"type":99},[],101639515,[104,105,106,107],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1418ba6ee138856f9184f86a7e317d23.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdfa8a185f42e82650eddb21049c26671.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F690bc7dac96b38fd130ce526afa944b1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8c88c374d1efb059a87e553856176147.png\">","以下哪个是双作用气缸的符号图()",{"answer":110,"createTime":5,"id":6,"options":111,"question":19,"source":30,"type":99},[],[8,9,10,11]]