22春北航《工程热力学》在线作业试卷.pdf
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1、15 春北航工程热力学在线作业试卷一、单选题（共15 道试题，共60 分。）1.工质经历一个不可逆过程后，熵（）。A.变大B.变小C.不变D.不确定正确答案：C 2.缩放管进口参数P1 下和背压 p 一定时，在渐扩管切去一段，则出口面积减小这出口速度c（），流量 Q（）。A.减小，不变B.减小，减小C.增大，不变D.增大，增大正确答案：A 3.气体膨胀时（）对外做功。A.一定B.不一定正确答案：B 4.理想气体可逆定温过程的特点是()。A.q=0 B.Wt=W C.WtW D.Wt1C.1文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5
2、G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L
3、7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A
4、7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7
5、H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G
6、9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J
7、8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4
8、S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4D.不确定正确答案：3.卡诺热机效率比实际热机效率（）。A.小B.二者相等C.大正确答案：4.压气机增压比较大时，为了减少滞胀容积、提高容积效率，除了尽可能减小余隙容积外，通常还采取（）的措施。A.多级压缩B.中间冷却C.单级压缩D.中间加热正确答案：5.制冷系数 可以是（）。A.大于 1 B.等于 1 C.小于 1 正确答案：文档编码:CY4S7H5G6T8 HX9
9、B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C
10、10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:
11、CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 H
12、X9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP
13、2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编
14、码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8 HX9B1G9L7R2 ZP2C10J8A7K4文档编码:CY4S7H5G6T8
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