[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fQq_j9jVSQuEUuJhehM49iXytvQ4_0DcO3CJD7Wq-EiE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-10-20 21:26:41",222907971,[8,9,10,11],"60","120","180","360",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},40,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_20519615","5.12","As the radar antenna scans through_____degrees a rotation, it can show where the target is relative to your position",[21,32,41,50,59,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],222907967,[25,26,27,28],"To measure bearing accurately","To determine orientation accurately","To adjust radar monitor","To measure distance accurately","What is the purpose of VRM control on marine radar","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],222907968,[36,37,38,39],"direction of a target","distance to a target","size of a target","shape of a target","Radar makes the most accurate determination of the_____",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],222907969,[45,46,47,48],"true north","magnetic north","ships' track","relative motion","Gyro compass has become one indispensable instrument in almost all merchant ships for its ability to detect the direction of___",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],222907970,[54,55,56,57],"great convenience","finding true north","magnetic characteristic","simplicity and reliability","Despite the rising importance and great convenience of the gyrocompass, the magnetic compass still retains its importance because of its____",{"answer":60,"createTime":5,"id":6,"options":61,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],222907972,[66,67,68,69],"Error caused by rapid changes in course","Error caused by rapid changes in draft","Errors caused by rapid changes in speed","Errors caused by rapid changes in latitude","Which of the following does NOT belong to the steaming error of a gyrocompass",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],222907973,[75,76,77,78],"STW","SOG","COG","HDG","For N-up and C-up presentation of marine radar,___ signal shall be connected",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],222907974,[84,85,86,87],"Similize","Mechanize","Synchronize","Position","____the repeater compass with the master compass, please",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],222907975,[93,94,95,96],"magnetic variation","marine insurance","maritime accident","mean high water spring","The annual change in____ is 0.2 degree",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],222907976,[102,103,104,105],"off; standby","standby; off","standby; close","close; standby","The correct method of switching off a marine radar is to turn power switch to Position______ first, then to____ position"]