[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fNhdv6iJQHpEQOU2N5C0C7Hwb5lDJMNeH21ZPkzWpG20":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-12-27 08:44:33",288807638,[8,9,10,11],"slewing","mooring","hoisting","luffing",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},27,"1ee0524c41359babf33f794b5cc60b3f","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","船舶电子电气专业英语2","exam_167319003","用相声演绎中国文化","There are three motors in a deck crane, and the ______ motor is used for raising and lowering the load",[21,32,41,50,55,64,73,82,91,94],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],288807630,[25,26,27,28],"Drip proof motors","Watertight motors","Sealed motors","Enclosed motors","Which of the following electric motors would be the safest and most reliable to use on the main desk of a vessel in foul weather conditions","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],288807631,[36,37,38,39],"hydraulic drive system","electronic drive system","pneumatic drive system","electric drive system","The 3-phase squirrel cage motors are widely used in ________",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],288807632,[45,46,47,48],"inverter","induction motor","converter","control logic","In AC adjustable-speed drives, the ______ converts the AC input power to DC voltage",{"answer":51,"createTime":5,"id":52,"options":53,"question":54,"source":30,"type":31},[],288807633,[9,10,8,11],"In a deck crane,a ______ motor is used for rotating the crane",{"answer":56,"createTime":5,"id":57,"options":58,"question":63,"source":30,"type":31},[],288807634,[59,60,61,62],"windlass","anchor crane","anchor davit","mooring winch","The deck machine used for dropping and weighing anchor is called the ______",{"answer":65,"createTime":5,"id":66,"options":67,"question":72,"source":30,"type":31},[],288807635,[68,69,70,71],"electrical; mechanical","hydraulic; mechanical","electrical; hydraulic","mechanical; hydraulic","The function of a hydraulic motor in hydraulic system is to convert ________ energy into ________ energy",{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":30,"type":31},[],288807636,[77,78,79,80],"step type","squirrel cage type","wound rotor type","synchronous type","The structure of ______ motor is simple but its start-up and speed regulation is not good",{"answer":83,"createTime":5,"id":84,"options":85,"question":90,"source":30,"type":31},[],288807637,[86,87,88,89],"Rudder","Windlass","Hatch","Mooring winch","Which of the following equipment is not deck machinery",{"answer":92,"createTime":5,"id":6,"options":93,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":30,"type":31},[],288807639,[98,99,100,101],"hydraulic power","wind power","man power","electric power","The driving power of the steering gear onboard a modern large vessel is usually _____"]