[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fAQQGBf89zoQjeNCaydQXMhGVTAQXEnrKiCA6rkp_LHs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-06-26 12:26:34",155265582,[8,9,10,11],"once every two crankshaft revolutions","once every crankshaft revolution","once every piston stroke","twice every piston stroke",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},50,"bef58afe392d5d6d8a70178c0b6888fa","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","轮机英语阅读（22232学期）","work_35837365","实习报告","In a single acting, four-stroke\u002Fcycle diesel engine, the power impulse in an individual cylinder occurs ______",[21,32,35,45,55,64,73,82,87,96],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],155265574,[25,26,27,28],"after BDC","before TDC","before BDC","after TDC","For an ordinary modern marine four-stroke engine the inlet valves open ______","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":37,"id":38,"options":39,"question":44,"source":30,"type":31},[],"2024-06-26 12:26:33",155265586,[40,41,42,43],"valve uniflow","valve loop","valve overlap","valve grinding","The period when both inlet valves and exhaust valves are open is referred to as ______",{"answer":46,"createTime":47,"id":48,"options":49,"question":54,"source":30,"type":31},[],"2024-06-25 11:01:47",155265592,[50,51,52,53],"the exhaust stroke","the suction stroke","the compression stroke","the expansion stroke","During ______ the air in the cylinder is compressed. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3052c70b902f1bc87a63df0da247427e.png\">",{"answer":56,"createTime":5,"id":57,"options":58,"question":63,"source":30,"type":31},[],155265598,[59,60,61,62],"exhaust manifold","pressure of the fresh air charge","valve adjusting gear","valve bridge","In a two-stroke\u002Fcycle diesel engine, the exhaust gases are expelled from the cylinder by the ______",{"answer":65,"createTime":37,"id":66,"options":67,"question":72,"source":30,"type":31},[],155265604,[68,69,70,71],"low heating value and high sulphur content","low flash point and high viscosity","high calorific value and low sulphur content","high flash point and high viscosity","The desirable properties of a marine fuel oil should include ______",{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":30,"type":31},[],155265610,[77,78,79,80],"bottom center","BDC","top center","TDC","Fuel injection begins during the compression stroke, before the piston reaches ______",{"answer":83,"createTime":5,"id":84,"options":85,"question":86,"source":30,"type":31},[],155265616,[28,26,27,25],"For an ordinary four-stroke engine the exhaust valves open ______",{"answer":88,"createTime":5,"id":89,"options":90,"question":95,"source":30,"type":31},[],155265622,[91,92,93,94],"piston","crank","crankshaft","connecting rod","Effective horsepower is the power developed by the ______ in the cylinder, but some of this is lost by friction within the engine",{"answer":97,"createTime":98,"id":99,"options":100,"question":101,"source":30,"type":31},[],"2024-06-25 11:01:48",155265626,[52,50,51,53],"During ______ the gases are driven out of the cylinder by the piston. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F64303bc0da1442d8c0c3f0c80234ce23.png\">"]