[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fCP-zo60TN06V6L8GgvdfMT41TvmhVtunGwIS_2-kG8Y":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":18,"origin":111,"createTime":20},155340167,"v1","The cetane number of a diesel fuel oil indicates it's_________",[8,9,10,11],"heating value","viscosity","ignition quality","acid content",[],[14,21,31,41,51,61,71,81,91,101],{"id":4,"source":5,"question":6,"options":15,"answer":16,"related":17,"type":18,"origin":19,"createTime":20},[8,9,10,11],[],[],0,null,"2024-06-25T14:56:17+08:00",{"id":22,"source":5,"question":23,"options":24,"answer":29,"related":30,"type":18,"origin":19,"createTime":20},155340169,"______ fitted to engines have to deal with wide load ranges and they cannot be efficient at all loads",[25,26,27,28],"Blower","Turbochargers","Crosshead","Piston",[],[],{"id":32,"source":5,"question":33,"options":34,"answer":39,"related":40,"type":18,"origin":19,"createTime":20},155340171,"__________valves which can be operated from outside the machinery space must be fitted to all tanks and to the main inlet to the engine",[35,36,37,38],"Quick opening","Slow closing","Quick closing","Slow opening",[],[],{"id":42,"source":5,"question":43,"options":44,"answer":49,"related":50,"type":18,"origin":19,"createTime":20},155340173,"Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye",[45,46,47,48],"Semi-floating","Full floating","Stationary","Free rolling",[],[],{"id":52,"source":5,"question":53,"options":54,"answer":59,"related":60,"type":18,"origin":19,"createTime":20},155340175,"Smaller engines can be made more rigid than large ones and may not have________",[55,56,57,58],"through bolts","connecting rods","crankshaft","crankcase",[],[],{"id":62,"source":5,"question":63,"options":64,"answer":69,"related":70,"type":18,"origin":19,"createTime":20},155340177,"The depth of fuel oil in a tank is normally measured through the _________",[65,66,67,68],"feed line","overflow line","sounding tube","vent line",[],[],{"id":72,"source":5,"question":73,"options":74,"answer":79,"related":80,"type":18,"origin":19,"createTime":20},155340178,"For the diesel oil supply line of incinerator , mesh size for strainer is max. ______",[75,76,77,78],"55-75 um","50-70 um","60-75 um","50-75 um",[],[],{"id":82,"source":5,"question":83,"options":84,"answer":89,"related":90,"type":18,"origin":19,"createTime":20},155340179,"Before the lubricating oil is entered into the system again, it must be purified by the ________ in the drain tank.(图)",[85,86,87,88],"purifier","separator","strainer","Cleaner",[],[],{"id":92,"source":5,"question":93,"options":94,"answer":99,"related":100,"type":18,"origin":19,"createTime":20},155340180,"In a trunk engine the cylinder-lubrication is done by the oil mist thrown up by_________.(图)",[95,96,97,98],"the piston rod","the camshaft","the crank","the oil pump",[],[],{"id":102,"source":5,"question":103,"options":104,"answer":109,"related":110,"type":18,"origin":19,"createTime":20},155340181,"In addition to planned maintenance requirements and circumstances permitting, crankshaft deflections are to be taken at each ________",[105,106,107,108],"piston removal","piston replacement","cylinder replacement","dry-docking",[],[],{"courseName":112,"courseImg":113,"workName":114,"workId":115,"count":116,"courseId":117},"轮机英语","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F732f110bffb423ebc0aea6098f68b74c.jpg","单元测试 4","exam_122467833",92,"e8fb634827ab27bf51319eb8230a90eb"]