[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fibTHbcwpeoIjMVW-t__caroiAAi2Akrmk8CoCFax7wU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-03-08 22:05:54",178649514,[8,9,10,11],"越弱","越强","传热能力与传热单元数无关","不好说",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},38,"f34f5c146cb741ff2c358f38c5f11a89","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4a56426994abd8efda59506260843045.png","化工原理实验","ac9cb9bc7f524e2cb48f9f953f3dc877","传热实验小节自测题","对一个换热器而言,其传热单元数越多,说明该换热器的传热能力()",[21,26,35,43,51,56,65,70,77,85],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],178649515,[30,31,32,33],"25℃","10℃","16.4℃","17.5℃","在一列管换热器中,用水冷凝某有机蒸汽,蒸汽温度为50℃,凝液在饱和温度下排出,水温由25℃升至40℃,此时该换热器的平均传热温差为()",{"answer":36,"createTime":5,"id":37,"options":38,"question":42,"source":24,"type":25},[],178649516,[39,40,41,11],"有道理,但实际上不能实现","有道理,可以实现","没道理,不可能实现","在一列管式换热器中用温度为t1的冷却水将某一热流体由温度T1降至T2.有人认为采出逆流可以比并流节省冷却水的用量.此说法( )",{"answer":44,"createTime":5,"id":45,"options":46,"question":50,"source":24,"type":25},[],178649517,[47,48,49,11],"管程","壳程","如何安排无关紧要","在设计和选择换热器时,压强很高的流体应安排其走哪程( )",{"answer":52,"createTime":5,"id":53,"options":54,"question":55,"source":24,"type":25},[],178649518,[47,48,49,11],"在设计和选择换热器时,作为加热介质的饱和蒸汽应安排其走哪程( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":24,"type":25},[],178649519,[60,61,62,63],"K增大,Q 增大,Δtm不变","K增大,Q 不变,Δtm不确定","K增大,Q 不变,Δtm下降","K不变,Q 增大,Δtm下降","利用水在逆流操作的套管换热器中冷却某物料,要求热流体温度T1、T2及流量qm1不变.今因冷却水进口温度t1增高,为保证完成生产任务,提高冷却水的流量qm2,问总传热系数K 、总传热速率Q 、平均传热温差Δtm如何变化?( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":69,"source":24,"type":25},[],178649520,[47,48,49,11],"在设计和选择换热器时,对于黏度特别大的流体应安排其走哪程( )",{"answer":71,"createTime":5,"id":72,"options":73,"question":76,"source":24,"type":25},[],178649521,[74,75,49,11],"流量小的","流量大的","在设计和选择换热器时,如果两流体的流量差别很大,应安排哪种流体走壳程( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":84,"source":24,"type":25},[],178649522,[81,82,83,11],"需要","不需要","有时需要,有时不需要","在设计和选择换热器时,是否需要设计者选择管程流速( )",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":24,"type":25},[],178649523,[89,90,91,92],"并流","逆流","都可以","无法确定","在列管换热器中,用水将 80℃某有机溶剂冷却至 35℃,冷却水进口温度为 30℃,出口温度不低于 35℃,两流体应( )操作"]