供应链管理第三版Unit14习题与答案

供应链管理第三版Unit14习题与答案Chapter14TransportationintheSupplyChainTrue/FalseTransportationplaysakeyroleineverysupplychainbecauseproductsareusuallyproducedandconsumedinthesamelocation.Answer:FalseDifficulty:EasyFreighttransportationcostsintheUnitedStatesamounttoabout6percentoftheGDP.Answer:TrueDifficulty:ModerateTheshipperisthepartythatrequiresthemovementoftheproductbetweentwopointsinthesupplychain.Answer:TrueDifficulty:ModerateThecarrieristhepartythatmovesortransportstheproduct.Answer:TrueDifficulty:EasyDifficulty:ModerateDifficulty:ModerateAdistributormakesinvestmentdecisionsregardingthetransportationinfrastructureandthenmakesoperatingdecisionstotrytomaximizethereturnfromtheseassets.Answer:FalseDifficulty:HardAcarrierusestransportationtominimizethetotalcost(transportation,inventory,information,andfacility)whileprovidinganappropriatelevelofresponsivenesstothecustomer.Answer:FalseDifficulty:HardThevehicle-relatedcostisincurredwhetherthevehicleisoperatingornotandisconsideredfixedforshort-termoperationaldecisionsbythecarrier.Answer:TrueDifficulty:ModerateVehicle-relatedcostincludesanycostassociatedwithterminals,airportgates,andlaborthatareincurredwhethervehiclesareinoperationornot.Answer:Falseshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considerTrip-relatedcostdependsonthelengthanddurationofthetripbutisindependentofthequantityshipped.Answer:TrueDifficulty:EasyTrip-relatedcostincludesloading/unloadingcostsandaportionofthefuelcostthatvarieswiththequantitybeingtransported.Answer:FalseDifficulty:EasyOverheadcostincludesthecostofplanningandschedulingatransportationnetworkaswellasanyinvestmentininformationtechnology.Answer:TrueDifficulty:ModerateAcarrier’sdecisionsareaffectedbythepricesthatthemarketwillbear,butnottheresponsivenessitseekstoprovideitstargetsegment.Answer:FalseDifficulty:ModerateTransportationcostdependsonthepricesofferedbydifferentcarriersandtheextenttowhichtheshipperusesinexpensiveandslow,orexpensiveandfast,meansoftransportation.Answer:TrueDifficulty:EasyRailisthedominantmodeoffreighttransportationintheUnitedStatesandaccountsforover75percentofthenation’sfreightbill.Answer:FalseDifficulty:ModerateAmilkrunisarouteinwhichatruckeitherdeliversproductfromasinglesuppliertomultipleretailersorgoesfrommultiplesupplierstoasingleretailer.Answer:TrueDifficulty:EasyMilkrunsreduceoutboundtransportationcostsbyconsolidatinglargeshipments.Answer:FalseDifficulty:EasyCompaniesshouldevaluatedifferenttransportationoptionsintermsofvariouscostsaswellasrevenuesandthenrankthemaccordingtocoordinationcomplexity.Answer:TrueDifficulty:HardThemodeoftransportationthatresultsinthelowesttransportationcostwilllowertotalcostsforasupplychain.Answer:FalseDifficulty:Moderateshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considerIgnoringinventorycostswhenmakingtransportationdecisionscanresultinchoicesthatworsentheperformanceofasupplychain.Answer:TrueDifficulty:ModerateFirmscansignificantlyreducethesafetyinventorytheyrequirebyphysicallyaggregatinginventoriesinonelocation,whichwillalsodecreasetransportationcost.Answer:FalseDifficulty:ModerateTemporalaggregationdecreasesafirm’sresponsivenessbecauseofshippingdelaybutalsodecreasestransportationcostsbecauseofeconomiesofscalethatresultfromlargershipments.Answer:TrueDifficulty:EasyAfirmcanmeetcustomerneedsbyusingtailoredtransportationtoprovidetheappropriatetransportationchoicebasedoncustomerandproductcharacteristics,butatahighercost.Answer:FalseDifficulty:ModerateTailoredtransportationistheuseofdifferenttransportationnetworksandmodesbasedoncustomerandproductcharacteristics.Answer:TrueDifficulty:EasyDifficulty:ModerateDifficulty:ModerateThemostimportantoperationaldecisionrelatedtotransportationinasupplychainistheroutingandschedulingofdeliveries.Answer:TrueDifficulty:ModerateThegeneralizedassignmentmethodislesssophisticatedthanthesavingsmatrixmethodandusuallyresultsinbettersolutionswhentherearefewdeliveryconstraintstobesatisfied.Answer:FalseDifficulty:ModerateThemaindisadvantageofthegeneralizedassignmentmethodisitssimplicityandrobustness.Answer:FalseDifficulty:ModerateThesavingsmatrixmethodissimpleenoughtobeeasilymodifiedtoincludedeliverytimewindowsandotherconstraints,androbustenoughtogiveareasonablygoodsolutionthatcanbeimplementedinpractice.Answer:Trueshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considerMultipleChoiceThemovementofproductfromonelocationtoanotherasitmakesitswayfromthebeginningofasupplychaintothecustomer ’shandsisreferredtoastransportation.b.retailing.distribution.manufacturing.noneoftheaboveAnswer:aDifficulty:ModerateTductsarerarelyproducedandconsumedinthesamelocation.thecostoftransportationisinconsequential.transportationisnotafactorindeterminingprofitability.noneoftheaboveAnswer:bDifficulty:EasyFreighttransportationcostsintheUnitedStatesamounttoabout60percentoftheGDP.about16percentoftheGDP.about6percentoftheGDP.lessthan1percentoftheGDP.noneoftheaboveAnswer:eDifficulty:HardThekeyplayersinanytransportationthattakesplacewithinasupplychainaretheshipperandthereceiver.theshipperandthesupplier.theshipperandthemanufacturer.theshipperandthecarrier.noneoftheaboveAnswer:dDifficulty:ModerateThepartythatrequiresthemovementoftheproductbetweentwopointsinthesupplychainistheshipper.thesupplier.themanufacturer.thecarrier.thereceiver.Answer:aDifficulty:ModerateThepartythatmovesortransportstheproductistheshipper.shallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considerthesupplier.themanufacturer.thecarrier.thereceiver.Answer:dDifficulty:ModerateInvestmentdecisionsregardingthetransportationinfrastructure(rails,locomotives,trucks,airplanes,etc.)aretheprimaryconcernoftheshipper.thesupplier.themanufacturer.thecarrier.thereceiver.Answer:dDifficulty:ModerateWhichofthefollowingusestransportationtominimizethetotalcost(transportation,inventory,information,andfacility)whileprovidinganappropriatelevelofresponsivenesstothecustomer?a.theshipperthesupplierthemanufacturerthecarrierthereceiverAnswer:aDifficulty:ModerateWhichofthefollowingisnotafactorthataffectscarrierdecisions?a.vehicle-relatedcostfixedoperatingcosttrip-relatedcostquantity-relatedcosttransportationcostAnswer:eDifficulty:ModerateThecostacarrierincursforthepurchaseorleaseofthevehicleusedtotransportgoodsisvehicle-relatedcost.fixedoperatingcost.trip-relatedcost.quantity-relatedcost.overheadcost.Answer:aDifficulty:EasyThecostassociatedwithterminals,airportgates,andlaborthatareincurredwhethervehiclesareinoperationornotisa.vehicle-relatedcost.fixedoperatingcost.shallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considertrip-relatedcost.quantity-relatedcost.overheadcost.Answer:bDifficulty:ModerateThepriceoflaborandfuelincurredforeachtripindependentofthequantitytransportedisincludedinvehicle-relatedcost.fixedoperatingcost.trip-relatedcost.quantity-relatedcost.overheadcost.Answer:cDifficulty:EasyLoading/unloadingcostsandaportionofthefuelcostthatvarieswiththequantitybeingtransportedisincludedinvehicle-relatedcost.fixedoperatingcost.trip-relatedcost.quantity-relatedcost.overheadcost.Answer:dDifficulty:EasyThecostofplanningandschedulingatransportationnetwork,aswellasanyinvestmentininformationtechnologyisincludedinvehicle-relatedcost.fixedoperatingcost.trip-relatedcost.quantity-relatedcost.overheadcost.Answer:eDifficulty:ModerateWhichofthefollowingcostsshouldacarrierconsidertobevariableforstrategicandplanningdecisions?trip-relatedcostquantity-relatedcostoverheadcostalloftheabovenoneoftheaboveAnswer:dDifficulty:ModerateWhichofthefollowingcostsshouldacarrierconsidertobevariableforoperationaldecisions?vehicle-relatedcosttrip-relatedcostquantity-relatedcostshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,consideralloftheabovebandconlyAnswer:eDifficulty:ModerateWhichofthefollowingcostsshouldacarrierconsidertobefixedforoperationaldecisions?a.vehicle-relatedcostb.trip-relatedcostc.quantity-relatedcostd.alloftheabovee.bandconlyAnswer:aDifficulty:EasyWhichofthefollowingisnotacosttheshipperneedstoconsiderwhenmakingtransportationdecisions?cessingcostAnswer:dDifficulty:ModerateTcessingcost.e.servicelevelcost.Answer:aDifficulty:EasyThecostofholdinginventoryincurredbythesh ipper’cessingcost.e.servicelevelcost.Answer:bDifficulty:EasyThecostofvariousfacilitiesintheshipper ’cessingcost.e.servicelevelcost.Answer:cshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considerDifficulty:EasyThecostofloading/unloadingorders,aswellasotherprocessingcostsassociatedwithtransportation,cessingcost.servicelevelcost.Answer:dDifficulty:EasyTcessingcost.servicelevelcost.Answer:eDifficulty:ModerateWhichmodeoftransportationisthemostexpensive?a.airtruckrailwaterpipelineAnswer:aDifficulty:EasyWhichmodeoftransportationistheleastexpensive?a.airtruckrailwaterpipelineAnswer:dDifficulty:ModerateWhichmodeoftransportationisthedominantformoffreighttransportation?airtruckrailwaterpipelineAnswer:bDifficulty:EasyWhichmodeoftransportationisusedprimarilyforpetroleumandnaturalgas?airtruckshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considerrailwaterpipelineAnswer:eDifficulty:EasyWhichofthefollowingisnotadesignoptionforatransportationnetwork?a.directshippingnetworkdirectshippingwithmilkrunsallshipmentsviacentralDCshippingviaDCusingmilkrunsAlloftheabovearedesignoptions.Answer:eDifficulty:EasyWhichtransportationnetworkdesignoptionhastheeliminationofintermediatewarehousesanditssimplicityofoperationandcoordinationasitsmajoradvantage?directshippingnetworkdirectshippingwithmilkrunsallshipmentsviacentralDCshippingviaDCusingmilkrunstailorednetworkAnswer:aDifficulty:EasyWhichtransportationnetworkdesignoptionestablishesanextralayerbetweensuppliersandretailerstostoreinventoryandtoserveasatransferlocation?directshippingnetworkdirectshippingwithmilkrunsallshipmentsviacentralDCshippingviaDCusingmilkrunstailorednetworkAnswer:cDifficulty:ModerateWhichtransportationnetworkdesignoptionusesacombinationofotheroptionstoreducethecostandimproveresponsivenessofthesupplychain?a.directshippingnetworkdirectshippingwithmilkrunsallshipmentsviacentralDCshippingviaDCusingmilkrunstailorednetworkAnswer:eDifficulty:EasyWhattrade-offsdomanagersneedtoconsiderwhenmakingtransportationdecisions?transportationcostversusinventorycosttransportationcostversuscustomerresponsivenessc.inventorycostversuscustomerresponsivenessshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,consideralloftheaboveaandbonlyAnswer:eDifficulty:ModerateThefundamentalsupplychaindecision(s)involvingthetrade-offbetweentransportationandinventorycostsis(are)choiceoftransportationmode.inventoryaggregation.levelofcustomerresponsiveness.alloftheabovebothaandbAnswer:eDifficulty:ModerateCheapermodesoftransporttypicallyhavea.shorterleadtimesandsmallerminimumshipmentquantities.b.shorterleadtimesandlargerminimumshipmentquantities.c.longerleadtimesandsmallerminimumshipmentquantities.d.longerleadtimesandlargerminimumshipmentquantities.e.noneoftheaboveAnswer:dDifficulty:EasyTemporalaggregationistheprocessofcombiningordersacrosstime.b.increasesafirm’sresponsiveness.decreasestransportationcostsbecauseofeconomiesofscale.d.alloftheaboveaandconlyAnswer:aDifficulty:ModerateTailoredtransportationistheuseofdifferenttransportationnetworksandmodesbasedoncustomerdensity.customerdistancefromwarehouse.customersizeandlocation.alloftheaboveaandconlyAnswer:dDifficulty:ModerateThemostimportantoperationaldecisionrelatedtotransportationinasupplychainisminimizingcostoftransportation.maximizingprofitabilityofthesupplychain.reducingthelevelofcycleinventory.theroutingandschedulingofdeliveries.noneoftheaboveAnswer:dshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipelineusingthesmallpipetoachievethermalexpansioncompensationand,ifnecessary,considerDifficulty:HardWhichofthefollowingarecomputationalproceduresthatcanbeusedtomakedecisionsregardingtheroutingandschedulingofdeliveries?a.thesavingsmatrixmethodthegeneralizedassignmentmethodthelosspreventionmethodalloftheaboveaandbonlyAnswer:eDifficulty:ModerateWhichofthefollowingisnotamajorstepinthesavingsmatrixmethod?a.identifythedistancematrixidentifythesavingsmatrixassignseedpointsforeachrouteassigncustomerstovehiclesorroutessequencecustomerswithinroutesAnswer:cDifficulty:ModerateThegeneralizedassignmentmethodismoresophisticatedthanthesavingsmatrixmethod.b.usuallyresultsinsolutionswheretherearefewerdeliveriestobesatisfied.usuallyresultsinbettersolutionswhentherearefewdeliveryconstraintstobesatisfied.aandbonlyaandconlyAnswer:eDifficulty:HardWhichofthefollowingisnotastepinthegeneralizedassignmentmethod?a.identifythedistancematrixassignseedpointsforeachrouteevaluateinsertioncostforeachcustomerassigncustomerstoroutessequencecustomerswithinroutesAnswer:aDifficulty:HardThemaindisadvantageofthegeneralizedassignmentmethodisa.thequalityofthesolution.thatithasdifficultygeneratinggooddeliveryschedulesasmoreconstraintsareincluded.itslackofsimplicityandrobustness.noneoftheaboveaandconlyAnswer:bDifficulty:HardThemainstrengthofthesavingsmatrixmethodisshallnotexceedthelevelofstatorcore,orarcskateboards,protectionofstatorplaterollovermayoccur),reasonabletogenerallyshouldbecentralized.Avoidlayoutvulnerabletomechanicaldamage,damp,vulnerabletocorrosionandvibration,ensureasfaraspossiblewiththeplatformstairs,liftingdevices,coverplates,electricalenclosuresandotherintervalsatarm'slength.Pipingsupportandhangersetweightoftheweightanditsinsulationshallmeetreasonablepipingdisplacement,increasesystemstability,preventionofpipelinevibrationdisplacementinoperation.Processpipingsupportandhangerspacingareshownintable1.Processpipinginthedrainpipemusthaveacertainslope(about0.002-0.004)todrain.Enterthepipeshouldbesmoothflowtothelateral,intakemanifoldintotheexpansiontankshouldbeconsideredorder,lowpressureorhighpressuredropneartheexpansiontankinlet.Pipedeflectionandexpansionmustbeconsideredtheabsorptionproblem,considerthenaturaldirectionofthepipeli