[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fgQhbm6YMaD5cPOH3pphN6MZGVxnZfX9Qf8G5TsLUlmA":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-05-28 12:59:06",390507092,[8,9,10,11],"main bearings","connecting rod","through bolt","cylinder cover",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","The piston has passed the top dead center position and is being moved down by the____as the crankshaft rotates",[18,29,38,46,49,58,67,76,85,94],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],390507089,[22,23,24,25],"scraper rings","stuff","compression rings","sealing rings","The liner is located within this jacket unit and____are provided to prevent waterleakage","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],390507090,[33,34,35,36],"The crankshafts","The crankcases","The cylinders","The frames","____are mounted on and bolted to the bedplate cross girders",{"answer":39,"createTime":5,"id":40,"options":41,"question":45,"source":27,"type":28},[],390507091,[42,43,8,44],"lineshaft bearings","connecting rod bearings","support bearings","The bearings used to support the crankshaft of a diesel engine are generally called____",{"answer":47,"createTime":5,"id":6,"options":48,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":50,"createTime":5,"id":51,"options":52,"question":57,"source":27,"type":28},[],390507093,[53,54,55,56],"the exhaust valves","the fuel valves","the indicator cocks","the fuel pumps","In each cylinder cover there are two or three holes for____",{"answer":59,"createTime":5,"id":60,"options":61,"question":66,"source":27,"type":28},[],390507094,[62,63,64,65],"inlet","check","outlet","exhaust","The____valves, as on the MC engines, are opened hydraulically and closed by an air spring",{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":27,"type":28},[],390507095,[71,72,73,74],"frame","bedplate","cylinder","liner","A____is the foundation of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost",{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":27,"type":28},[],390507096,[80,81,82,83],"alignment\u002Fvibration","alignment\u002Fnoise","connection\u002Fvibration","connection\u002Fnoise","A rigid structure is necessary in order to preserve____of all engine parts, particularly the crankshaft and camshaft, and to minimize problems related to____of the structure",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":27,"type":28},[],390507097,[89,90,91,92],"shearing strength","torque","bend","extrusion","A crankshaft must be able to transmit the____developed during operation, which imposes stresses on the crankshaft journals",{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":27,"type":28},[],390507098,[98,99,100,101],"large\u002Flarge","large\u002Fsmall","small\u002Flarge","small\u002Fsmall","Modem engines employ____diameter crank pins in order to provide____area bearings and low bearing loads"]