[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fJubQM40HY1kzZD2jDFkMVjWmPbln_fcfmrh9J3IjLSQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-08-26 20:47:37",158512556,[8,9,10,11],"Crane","Lifting weight limiters","Bridge crane","Gantry crane",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"ed7634b934990a8e5d29e9647037d968","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4dbaa56bf6c31c475027c8bbe7bd835e.jpg","桥门式起重机技能操作Bridge and Gantry Crane Skill Operation（Chinese-English）","a9de4756463b4ace9dca7e82f191953a","Project 4 Bridge crane safety protection device","The overload protection device equipment of the crane is ( )",[21,26,34,41,49,58,68,73,82,91],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":33,"source":24,"type":25},[],158512558,[30,9,31,32],"Automatic interlock device","Buffer","Torque limiter","In order to prevent the bridge crane maintenance personnel from electric shock, it is required to install ( ) at the door of the cab to the vehicle driver ( or bridge )",{"answer":35,"createTime":5,"id":36,"options":37,"question":40,"source":24,"type":25},[],158512559,[38,30,31,39],"Brake","Limiter","A safety device that absorbs the energy of the collision between the crane and the object and works after the failure of the brake and end switch of the crane is ( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":48,"source":24,"type":25},[],158512560,[45,46,31,47],"Weight limiter","Limit position limiter","Rail cleaning device","When the material is likely to accumulate on the track and become an obstacle to the operation, the crane and the lifting trolley running on the track should be installed under its frame ( or end beam ) and under the trolley frame ( )",{"answer":50,"createTime":5,"id":51,"options":52,"question":57,"source":24,"type":25},[],158512561,[53,54,55,56],"Mechanical torque limiter","Track cleaning device","Electronic Torque Limiter","Limit Position LimiterII.Multiple choice questions ( 8 points for each question, a total of 40 points )","When the crane pickup device rises to the design specified lifting height, should be able to automatically cut off the power source of the lifting of the settings are ( )",{"answer":59,"createTime":5,"id":60,"options":61,"question":66,"source":24,"type":67},[],158512562,[62,63,64,65],"rail clamp (wheel) device","anchoring device","iron shoe","buffer","Port cranes, outdoor gantry cranes and other cranes wind anti-slip devices are mainly. ( )",1,{"answer":69,"createTime":5,"id":70,"options":71,"question":72,"source":24,"type":67},[],158512563,[45,46,31,47],"The bridge crane safety protection device includes ( )",{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":24,"type":67},[],158512564,[77,78,79,80],"Lifting time","Lifting times","Lifting weight","Lifting site","The comprehensive error of the weight limiter of the bridge crane should not be greater than 5 % and can be recorded. ( )",{"answer":83,"createTime":5,"id":84,"options":85,"question":90,"source":24,"type":67},[],158512565,[86,87,88,89],"200mm","500mm","300mm","600mm","The rising and falling limit position limiters of the gantry crane should immediately cut off the power supply, and the guaranteed distance at the end of the stopped track and the proximity of the crane to each other are ( )",{"answer":92,"createTime":5,"id":93,"options":94,"question":99,"source":24,"type":67},[],158512566,[95,96,97,98],"Light-type anti-collision device","Ultrasonic anti-collision device","Infrared reflector","spring bufferIII.Judgment questions( 6 points for each question, a total of 30 points )","Bridge gantry crane when the speed exceeds 120m\u002Fmin, the general buffer can not meet the requirements, must be used ( ) and other safety guards."]