食品工艺学1(食品加工原理)试题库

andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstrengtheningsurfaceheightandwidthtubewallthickness(mm)2--33--45--6weldformweldstrengtheningheighth(mm)1-1.51.5-22-2.5widthb(mm)食品工艺学1（食品加工原理）试题库1.高温对微生物菌群有何影响？详细叙述影响微生物耐热性的5个因素。2.D值，F值，Z值分别指的是什么，如何计算？3.简述连续式高温短时（HTST）巴氏杀菌系统的组成。4.冷藏过程中食品会发生哪些化学反应和生化反应？5.蒸发器常见类型有哪几种？蒸发浓缩与冷冻浓缩相比，各有哪些优缺点？6.干燥对食品质量的影响有哪些？7.绘出食品在干燥过程中水分减少的典型曲线。8.食品冷冻方式有哪几种？其中直接接触冷冻方式有可以分为哪几类？请分别简单介绍。9.什么叫商业杀菌？商业杀菌后对食品质量有何影响？食品工艺学2（软饮料工艺学）试题库一．填空题1．软饮料是指________________________________________________________________。软饮料用水的水质要求硬度小于_____度，即_____mgCao/L。2．明矾作为混凝剂，产生混凝作用的原理是____________________________________________________________________________________________________________________。3．滤料的级配是指____________________________________________________________，滤料层的孔隙率是指___________________________________________________________。4．石灰软化法软化水时，每降低1吨水中暂时硬度1度，需加纯CaO_____g，每降低1吨水中CO2浓度1mg/L，需加纯CaO_____g。5．钠型离子交换树脂软化钙硬度，镁硬度的反应式为：____________________________，_________________________________________。6．离子交换水处理装置的组合方式中，_________床需排在________床前面，否则__________________________________________________________________________________。7．电渗析器脱盐的主要场所是_________，由_____________________________________________组成，电渗析器中最简单的脱盐单元是__________，由______________________________________________________组成。8.反渗透法对水脱盐时，反渗透条件为________________________;_______________________________________.9．氯消毒法对水消毒时，我国水质标准规定管网末端自由性余氯保持在______mg/L。自由性氯又称______________，是指______________________________________________.10．氯消毒中加氯量可分为两部分：_________，即__________________________________________________________；和_________，即___________________________________________________________________________________。11．调味糖浆的配合过程中，__________和__________应在加________之前加入，否则__________________________________________________________________________________。12．二氧化碳在碳酸饮料中的作用：___________________________，____________________，__________________________，___________________________。13．碳酸饮料灌装时，灌装机常保持一个______Kg/cm2的过压力。过压力的形成可通过andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstren