[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f8bA1slOsx-HaPFDjaVUPD99JoaBo5_7vcKX_v31cJ0s":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-03-08 22:05:55",178649539,[8,9,10,11],"外管外","外管内","内管外","内管内",{"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","传热实验时,在套管换热器中用饱和水蒸气冷凝来加热空气(空气走内管,蒸汽走环隙),为强化传热决定加装翅片,翅片应装在( )侧更为有效",[21,33,42,50,58,63,72,77,84,92],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-03-08 22:05:54",178649514,[26,27,28,29],"越弱","越强","传热能力与传热单元数无关","不好说","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()","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],178649515,[37,38,39,40],"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":43,"createTime":23,"id":44,"options":45,"question":49,"source":31,"type":32},[],178649516,[46,47,48,29],"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":51,"createTime":23,"id":52,"options":53,"question":57,"source":31,"type":32},[],178649517,[54,55,56,29],"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":59,"createTime":23,"id":60,"options":61,"question":62,"source":31,"type":32},[],178649518,[54,55,56,29],"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":64,"createTime":23,"id":65,"options":66,"question":71,"source":31,"type":32},[],178649519,[67,68,69,70],"K增大,Q 增大,&Delta;tm不变","K增大,Q 不变,&Delta;tm不确定","K增大,Q 不变,&Delta;tm下降","K不变,Q 增大,&Delta;tm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&Delta;tm如何变化?( )",{"answer":73,"createTime":23,"id":74,"options":75,"question":76,"source":31,"type":32},[],178649520,[54,55,56,29],"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":78,"createTime":23,"id":79,"options":80,"question":83,"source":31,"type":32},[],178649521,[81,82,56,29],"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":85,"createTime":23,"id":86,"options":87,"question":91,"source":31,"type":32},[],178649522,[88,89,90,29],"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":93,"createTime":23,"id":94,"options":95,"question":100,"source":31,"type":32},[],178649523,[96,97,98,99],"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"]