供应链管理习题 12.docx
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供应链管理习题 12.docx
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供应链管理习题12
SupplyChainManagement,5e(Chopra/Meindl)
Chapter12ManagingUncertaintyinaSupplyChain:
SafetyInventory
12.1True/FalseQuestions
1)Safetyinventoryisinventorycarriedforthepurposeofsatisfyingdemandthatexceedstheamountforecastedforagivenperiod.
Answer:
TRUE
Diff:
2
Topic:
12.1TheRoleofSafetyInventoryinaSupplyChain
LearningOutcome:
Comparecommonapproachestosupplychaindesign
2)Safetyinventoryiscarriedbecausedemandforecastsareaccurateandaproductshortagemayresultiftheforecastdemandexceedstheactualdemand.
Answer:
FALSE
Diff:
2
Topic:
12.1TheRoleofSafetyInventoryinaSupplyChain
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
3)Raisingthelevelofsafetyinventoryincreasesproductavailabilityandthusthemargincapturedfromcustomerpurchases.
Answer:
TRUE
Diff:
2
Topic:
12.1TheRoleofSafetyInventoryinaSupplyChain
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
4)Raisingthelevelofsafetyinventoryincreasesinventoryholdingcosts.
Answer:
TRUE
Diff:
1
Topic:
12.1TheRoleofSafetyInventoryinaSupplyChain
LearningOutcome:
Comparecommonapproachestosupplychaindesign
5)Carryingexcessiveinventorycanhelpcounterdemandvolatilitywhennewproductscomeonthemarket.
Answer:
FALSE
Diff:
2
Topic:
12.1TheRoleofSafetyInventoryinaSupplyChain
LearningOutcome:
Comparecommonapproachestosupplychaindesign
6)Theappropriatelevelofsafetyinventoryisdeterminedbytheuncertaintyofbothdemandandsupplyandthedesiredlevelofcycleinventory.
Answer:
FALSE
Diff:
2
Topic:
12.1TheRoleofSafetyInventoryinaSupplyChain
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
7)Astheuncertaintyofsupplyordemandgrows,therequiredlevelofsafetyinventoriesincreases.
Answer:
TRUE
Diff:
2
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
8)Asthedesiredlevelofproductavailabilityincreases,therequiredlevelofsafetyinventorydecreases.
Answer:
FALSE
Diff:
1
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
9)Leadtimeisthegapbetweenwhenanorderisplacedandwhenitisreceived.
Answer:
TRUE
Diff:
1
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
10)Thecoefficientofvariationmeasuresthesizeoftherelativecertaintyofcycleinventory.
Answer:
FALSE
Diff:
1
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
11)Productavailabilityreflectsafirm'sabilitytofillacustomerorderoutofavailableinventory.
Answer:
TRUE
Diff:
2
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
12)Orderfillrateisthefractionofproductdemandthatissatisfiedfromproductininventory.
Answer:
FALSE
Diff:
2
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
13)Productfillrateisthefractionofproductdemandthatissatisfiedfromproductininventory.
Answer:
TRUE
Diff:
2
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
14)Thedistinctionbetweenproductfillrateandorderfillrateissignificantinasingleproductsituation.
Answer:
FALSE
Diff:
3
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
15)Trackingorderfillratesisimportantwhencustomersplaceahighvalueontheentireorderbeingfilledsimultaneously.
Answer:
TRUE
Diff:
1
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
16)Withperiodicreview,inventorystatusischeckedatregularintervalsandanorderisplacedtoraisetheinventoryleveltoaspecifiedthreshold.
Answer:
TRUE
Diff:
3
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
17)Theexpectedshortageperreplenishmentcycle(ESC)istheaverageunitsofdemandthataresatisfiedfrominventoryinstockperreplenishmentcycle.
Answer:
FALSE
Diff:
3
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
18)ShortageoccursinareplenishmentcycleonlyifthedemandduringtheleadtimeexceedstheROP.
Answer:
TRUE
Diff:
2
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
19)Thefillrateincreasesandthecycleserviceleveldecreasesasthesafetyinventoryisincreased.
Answer:
FALSE
Diff:
2
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
20)Forthesamesafetyinventory,anincreaseinlotsizeincreasesthefillratebutnotthecycleservicelevel.
Answer:
TRUE
Diff:
3
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
21)Therequiredsafetyinventorygrowsrapidlywithadecreaseinthedesiredproductavailability.
Answer:
FALSE
Diff:
1
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
22)Therequiredsafetyinventoryincreaseswithanincreaseintheleadtimeandthestandarddeviationofperiodicdemand.
Answer:
TRUE
Diff:
1
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
23)Agoalofanysupplychainmanageristoreducethelevelofsafetyinventoryrequiredregardlessoftheaffectproductavailability.
Answer:
FALSE
Diff:
1
Topic:
12.2DeterminingAppropriateLevelofSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
24)Inmostsupplychains,thekeytoreducingtheunderlyingforecastuncertaintyistolinkallforecaststhroughoutthesupplychaintocustomerdemanddata.
Answer:
TRUE
Diff:
2
Topic:
12.3ImpactofSupplyUncertaintyonSafetyInventory
AACSB:
ReflectiveThinkingSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
25)Areductioninsupplycanhelpdramaticallyreducesafetyinventoryrequiredwithouthurtingproductavailability.
Answer:
FALSE
Diff:
2
Topic:
12.3ImpactofSupplyUncertaintyonSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
26)Aggregationreducesthestandarddeviationofdemandonlyifdemandacrosstheregionsbeingaggregatedisnotperfectlypositivelycorrelated.
Answer:
TRUE
Diff:
2
Topic:
12.4ImpactofAggregationonSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
27)Incasedemandindifferentgeographicalregionsisaboutthesamesizeandindependent,aggregationincreasessafetyinventorybythesquarerootofthenumberofareasaggregated.
Answer:
FALSE
Diff:
2
Topic:
12.4ImpactofAggregationonSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
28)Ifaggregationreducestherequiredsafetyinventoryforaproductbyasmallamount,itmaybebesttocarrytheproductinmultipledecentralizedlocationstoreduceresponsetimeandtransportationcost.
Answer:
TRUE
Diff:
2
Topic:
12.4ImpactofAggregationonSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
29)Thelowerthecoefficientofvariationofanitem,thegreaterthereductioninsafetyinventoriesasaresultofcentralization.
Answer:
FALSE
Diff:
3
Topic:
12.4ImpactofAggregationonSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
30)Manufacturer-drivensubstitutionincreasesoverallprofitabilityforthemanufacturerbyallowingsomeaggregationofdemand,whichreducestheinventoryrequirementsforthesamelevelofavailability.
Answer:
TRUE
Diff:
2
Topic:
12.4ImpactofAggregationonSafetyInventory
AACSB:
AnalyticSkills
LearningOutcome:
Comparecommonapproachestosupplychaindesign
31)Postponementallowsthesupplychaintodelayproductdifferentiation,whichresultsindisaggregatingmostoftheinventoriesinthesupplychain.
Answer:
FALSE
Diff:
2
Topic:
12.4ImpactofAggregationonSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
32)Periodicreviewpoliciesrequiremoresafetyinventorythancontinuousreviewpoliciesforthesamelevelofproductavailability.
Answer:
TRUE
Diff:
1
Topic:
12.5ImpactofReplenishmentPoliciesonSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
33)Whenusingacontinuousreviewpolicy,amanagerhastoaccountfortheuncertaintyofdemandduringtheleadtimeandthereviewinterval.
Answer:
FALSE
Diff:
1
Topic:
12.5ImpactofReplenishmentPoliciesonSafetyInventory
LearningOutcome:
Comparecommonapproachestosupplychaindesign
34)Cycleinventoryisinventorycarriedtosatisfydemandthatexceedstheamountforecastedforagivenperiod.
Answer:
FALSE
Diff:
1
Topic:
12.1TheRoleofSafetyInventoryinaSupplyChain
LearningO
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