sues fall 2008 final test master answer

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1、（勤奋、求是、创新、奉献）2008～2009学年第1学期考试试卷主考教师：____ThomasA.Hamade____学院_汽车工程学院__班级姓名_________学号_________《先进制造工艺（美）》课程试卷A答案（本卷考试时间120分钟）题号一二三四五六七八九十总分题分81291654100得分Ⅰ.Fillintheblank（4blanks,4pointseach,16pointstotal）1.HeatTransferdealswiththedeterminationoftheratesofenergytransfersaswellasvariationoftempera

2、ture.2.Awatervaporattemperatureandpressurehigherthanthesaturationpointisknownas___superheated__steam.3.Fluidflowisthesciencethatdealswiththebehaviorofmovingfluids.4.TheenthalpyisH=U+PVandtheinternalenergyforaclosedsystemisgivenasdU=δQ–δW.5.ThermalScienceisthescienceofenergytransformationinthermod

3、ynamics,fluidflowandheattransfer.6.TheidealgaslawisusedtoapproximateP,T,Vrelationshipformanygases.7.Theexpansivityoffluidsisanenergyformandrepresentedbypressureandvolumeoffluidsaccordingtothefollowingrelationshipbetweenpressureandvolumeofthefluid:____PV___.8.TheBernoulliequationisusedtopredictflo

4、wconditionsofafluidalongthestreamlines.9.OneBritishthermalunit(BTU)isequal__252____caloriesandeachcalorieisequal__4.187___Joules.10.273Kisequal_____0Fand0Kisequalto_____R.11.Thelowestpossiblepressureis0Paandthelowestpossible_____temperature_____is0K.12.Theweightofmatteronthemoonismuchthanthatonea

5、rthbecauseofthe_______________constantismuchlower.Ⅱ.Choosetherightanswers:（4questions,4pointseach,16pointstotal)1.Whichoneofthefollowingdevicesisusedtogenerateelectricpower:(a)Pump(b)Electricmotor(c)Gasheaters__X__(d)Turbine2008~2009学年第1学期《先进制造工艺（美）》课程试卷B答案第17页共17页2.Whichoneofthefollowingdevicesi

6、susedtocompressfluids:(a)Nozzle__X__(b)Compressor(c)Turbine(d)Nonementioned3.Whichoneofthefollowingisaopensystem:(c)a.Gasinsidecylinderexchangesheatwithsurroundingbutnomassentersthesystem.b.Gasisolatedsomattersfromsurroundingdonotenterthesystem.c.Fluidflowsinandoutofthesystemfromsurrounding.d.Gas

7、doingworkonsurrounding,howevernomatterentersthesystem.e.Noneoftheabove.4.Atwhattemperaturewaterevaporateswhenthepressureis0kPa:a.0oCc.0Kd..0R__X__e.Allmentioned5.Insteadyheattransferthroughawallisalways:a.Variable__X__