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  • 资源类别:试卷
  • 资源分类:建筑化工
  • 适用专业:化工原理
  • 适用年级:大学
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  • 文件格式:word
  • 文件大小:54.60KB
  • 上传时间:2006-10-27 15:12:17
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资料简介
Final Examination for Unit Operations of Chemical Engineering
Grade 2000, 2002/12/22
1. (40 points) True or false or fill the black or choose the correct answer
(1) ( ) If the inlet and outlet temperatures of fluids are fixed, the LMTD 兇tm of counter flow is always larger than that of parallel flow.
(2) ( ) If the volume flow rate changes, the developed head H of reciprocating pump will keep nearly unchanged.
(3) ( ) Direction of heat flow is the same as that of the temperature gradient.
......
Final Examination for Unit Operations of Chemical Engineering
1. (40 points) True or false or fill the black or choose the correct answer
(1) ( ) At steady state heat transfer by conduction, q/A (heat flux) is always constant.
(2) ( ) If the volume flow rate changes, the developed head H of reciprocating pump will keep nearly unchanged.
(3) ( ) Direction of heat flow is the same as that of the temperature gradient.
(4) ( )When the developed head H is the same, one pump can develop more volume flow rate than that two same pumps which work in parallel.
......
Final Examination for Unit Operations of Chemical Engineering
Grade 2002, 2004/12/17
1. (45 points) True or false or fill the black or choose the correct answer
(1) ( ) In a laminar flow, the frictional coefficient (Fanning Factor f) is inversely proportional to Re.
(2) ( ) At heat transfer by conduction, q (heat flow rate) is always constant.
(3) ( ) When a fluid passes through a pipe, the total mechanical energy in section 1 (inlet) is always equal to that in section 2 (outlet).
......
Quiz for Unit Operations of Chemical Engineering
Grade 2002
1. (40 points) True or false or fill the black or choose the correct answer
(1) ( ) In a laminar flow, the velocity distribution is parabolic.
(2) ( ) In a laminar flow, the frictional loss is proportional to velocity square.
(3) ( ) In the fully-developed turbulent flow, Fanning factor f is independent of Re.
(4) ( ) If the volumetric flow rate increases, the developed head H of centrifugal pumps will increase as well.
......
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共1文件夹,4个文件,文件总大小:293.50KB,压缩后大小:54.60KB
  • 华南理工大学2000-2004年度化工原理试题(4份)
    • Microsoft Word文档2000.doc  [44.00KB]
    • Microsoft Word文档2001.doc  [151.50KB]
    • Microsoft Word文档2002.doc  [55.00KB]
    • Microsoft Word文档2004.doc  [43.00KB]
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