View the step-by-step solution to: Chapter 10, Problem 2 Fresh Foods Grocery is considering redoing its facilit...

This question was answered on Feb 23, 2013. View the Answer
Chapter 10, Problem 2

Fresh Foods Grocery is considering redoing its facility layout. The from–to matrix showing daily customer trips between departments is shown in the table below.

Trips between Departments

Department A B C D E F

A. Dry groceries — 15 45 25 10 50
B. Bread — 30 16 25 25
C. Frozen foods — 34 15 20
D. Meats — 40 10
E. Vegetables — 20

F. Health and beauty aids —

Their current layout is shown in figure below.

The following layout is proposed for Fresh Foods Grocery.

Compute the ld score for Fresh Foods' current and proposed layouts.
Current Layout

Proposed Layout


Chapter 10, Problem 6

Gator Office Systems has interviewed managers in order to develop the from–to matrix:

Trips between Departments

Department A B C D E F

A — 30 — 34 50 25
B — — 55 10 10
C — — 15 5
D — — —
E — 30

F —




The current layout is shown in the figure below.

A better layout has been proposed for Gator Office Supplies:

Compute the ld score for Gator Office Supplies' current and proposed layouts.
Current Layout

Proposed Layout

Chapter 10, Problem 8

David's Sport Supplies is a store that sells sports equipment and gear for teenagers and young adults. David's is in the process of assigning the location of storage areas in its warehouse to minimize the number of trips made to retrieve needed items.

Given in the table below are the departments that need to be located, the number of trips made per week for each department, and the area needed by each department.

Trips to and Area
Department from Dock Needed

1. Baseball equipment 160 2
2. Football gear 100 1
3. Hockey equipment 150 3
4. Basketball equipment 120 1
5. Sports clothes 270 3

Which location scheme is the best?









Chapter 10, Problem 10

MMS Associates is a telecommunications service provider. The company is currently redesigning its main office to accommodate six newly hired salespeople. Some of the salespeople are expected to work in teams, so office assignments are very important. The table below presents the from–to matrix showing the expected frequency of contacts between members of the new sales staff.

Sales Person A B C D E F

A — 6 12 18 1 1
B — 4 19 3 0
C — 5 0 0
D — 7 19
E — 0

F —

This block plan shows the assigned office locations for the six sales members.

Michael Marc, the President of MMS Associates, is considering an alternative plan:

What is the ld score for this plan?










How does it compare to the original plan considered?
An alternative plan is .



Chapter 10, Problem 12

A manufacturing company is designing an assembly line to produce its main product. The line should be able to produce 60 units per hour. The following data in the Table give the necessary information.

Task Immediate Predecessor Task Time (sec)

A None 35
B A 50
C A 21
D B 38
E C 25
F D, E 58
G F 15

(a) Which task is the bottleneck?
Task is the bottleneck.


b) Select the appropriate precedence diagram for the above information.









(c) Compute the cycle time with a desired output of 60 units per hour.
C = seconds/unit
Chapter 10, Problem 18

A dress-making operation is being designed as an assembly line. The table below shows the tasks that need to be performed, their task times, and preceding tasks. If the goal is to produce thirty dresses per hour, answer the questions.


Work Element Immediate
Predecessor Task Time
(sec)

A. Cut dress body None 30
B. Cut sleeves None 40
C. Cut collar None 20
D. Sew dress body A 100
E. Sew sleeves to dress B, D 25
F. Sew collar to dress C, D 50
G. Hem dress E, F 50
H. Package dress G 90

(a) Compute the cycle time.
C = seconds/dress


(b) Which task is the bottleneck?
Task is the bottleneck
c) What is the maximum output for this line?
Maximum Output = dresses per hour.


d) Compute the theoretical minimum number of stations.

(Round your answer up to the nearest whole number.)
TM = stations.
or 4 stations.


(e) Assign work elements to stations, using the longest task time rule.
Work Station Task Selected



























(f) Compute the efficiency and balance delay of your assignment.

(Round your answers to 2 decimal places, the tolerance is +/-0.05)
Efficiency = %

Balance Delay = %

Chapter 10, Problem 20

The table below shows the tasks required to assemble an aluminum storm door and the length of time needed to complete each task.


Task Immediate
Predecessor Task Time
(sec)

A None 32
B A 43
C A 12
D A 23
E B, C, D 15
F E 25
G None 20
H F, G 5

Suppose a cycle time is 90 seconds
(a) Compute the theoretical minimum number of workstations.

(Round your answer up to the nearest whole number.)
TM = workstations





(b) Compute the outputs.

(Round your answers to 2 decimal places, the tolerance is +/-0.05.)
The maximum output?
units per hour
The minimum output?
units per hour


(c) Compute the efficiency.

(Round your answer to 2 decimal places, the tolerance is +/-0.05.)
Efficiency = %

8 pages Bus 515 Chapter 10 hw week 7.docx

Chapter10,Problem2
FreshFoodsGroceryisconsideringredoingitsfacilitylayout.Thefromtomatrixshowingdailycustomertrips
betweendepartmentsisshowninthetablebelow.
TripsbetweenDepartments
Depa
rtmen

A

B

C

D

E

F

t
A.Dry
grocer
ies
B.
Bread
C.
Froze
n
foods
D.
Meats
E.
Veget
ables
F.
Healt
hand
beaut
yaids



15


Theircurrentlayoutisshowninfigurebelow.

ThefollowinglayoutisproposedforFreshFoodsGrocery.

45

25

10

50

30

16

25

25



34

15

20



40

10



20



ComputetheldscoreforFreshFoods'currentandproposedlayouts.
CurrentLayout
ProposedLayout
Chapter10,Problem6
GatorOfficeSystemshasinterviewedmanagersinordertodevelopthefromtomatrix:
TripsbetweenDepartments
Dep
artm

A

B

C

D

E

F

ent
A
B
C
D



30






34
55



E
F

Thecurrentlayoutisshowninthefigurebelow.

AbetterlayouthasbeenproposedforGatorOfficeSupplies:

ComputetheldscoreforGatorOfficeSupplies'currentandproposedlayouts.
CurrentLayout
ProposedLayout
Chapter10,Problem8

50
10
15



25
10
5

30


David'sSportSuppliesisastorethatsellssportsequipmentandgearforteenagersandyoungadults.David'sisin
theprocessofassigningthelocationofstorageareasinitswarehousetominimizethenumberoftripsmadeto
retrieveneededitems.

Giveninthetablebelowarethedepartmentsthatneedtobelocated,thenumberoftripsmadeperweekforeach
department,andtheareaneededbyeachdepartment.
Tripstoand
Department
1.Baseball
equipment
2.Footballgear
3.Hockey
equipment
4.Basketball
equipment
5.Sportsclothes
Whichlocationschemeisthebest?

Chapter10,Problem10

Area

fromDock

Needed

160

2

100

1

150

3

120

1

270

3

MMSAssociatesisatelecommunicationsserviceprovider.Thecompanyiscurrentlyredesigningitsmainofficeto
accommodatesixnewlyhiredsalespeople.Someofthesalespeopleareexpectedtoworkinteams,sooffice
assignmentsareveryimportant.Thetablebelowpresentsthefromtomatrixshowingtheexpectedfrequencyof
contactsbetweenmembersofthenewsalesstaff.
Sale
s
Pers
on
A
B
C
D

A



B

6


C

12
4


D

18
19
5


E

E

F

1
3
0
7


F
Thisblockplanshowstheassignedofficelocationsforthesixsalesmembers.

MichaelMarc,thePresidentofMMSAssociates,isconsideringanalternativeplan:

Whatistheldscoreforthisplan?

1
0
0
19
0


Howdoesitcomparetotheoriginalplanconsidered?
Analternativeplanis .

Chapter10,Problem12
Amanufacturingcompanyisdesigninganassemblylinetoproduceitsmainproduct.Thelineshouldbeableto
produce60unitsperhour.ThefollowingdataintheTablegivethenecessaryinformation.
Task
A
B
C
D
E
F
G

Immediate

TaskTime

Predecessor

(sec)

None
A
A
B
C
D,E
F

(a)Whichtaskisthebottleneck?
Task isthebottleneck.

b)Selecttheappropriateprecedencediagramfortheaboveinformation.

35
50
21
38
25
58
15

(c)Computethecycletimewithadesiredoutputof60unitsperhour.
C= seconds/unit
Chapter10,Problem18
Adressmakingoperationisbeingdesignedasanassemblyline.Thetablebelowshowsthetasksthatneedtobe
performed,theirtasktimes,andprecedingtasks.Ifthegoalistoproducethirtydressesperhour,answerthe
questions.

Work
Element
A.Cutdress
body
B.Cut
sleeves
C.Cutcollar
D.Sewdress
body
E.Sew
sleevesto
dress
F.Sewcollar
todress
G.Hem
dress
H.Package
dress

Immediate

TaskTime

Predecessor

(sec)

None

30

None

40

None

20

A

100

B,D

25

C,D

50

E,F

50

G

90

(a)Computethecycletime.
C= seconds/dress

(b)Whichtaskisthebottleneck?
Task isthebottleneck
c)Whatisthemaximumoutputforthisline?
MaximumOutput= dressesperhour.

d)Computethetheoreticalminimumnumberofstations.

(Roundyouransweruptothenearestwholenumber.)
TM= stations.
or4stations.

(e)Assignworkelementstostations,usingthelongesttasktimerule.
WorkStation

TaskSelected

(f)Computetheefficiencyandbalancedelayofyourassignment.
(Roundyouranswersto2decimalplaces,thetoleranceis+/0.05)
Efficiency

=

%

Balance
Delay

=

%

Chapter10,Problem20
Thetablebelowshowsthetasksrequiredtoassembleanaluminumstormdoorandthelengthoftimeneededto
completeeachtask.

Task

A
B
C
D
E
F
G

Immedia
te
Predece
ssor
None
A
A
A
B,C,D
E
None

Task
Time
(sec)
32
43
12
23
15
25
20

H

F,G

Supposeacycletimeis90seconds
(a)Computethetheoreticalminimumnumberofworkstations.
(Roundyouransweruptothenearestwholenumber.)
TM= workstations

(b)Computetheoutputs.
(Roundyouranswersto2decimalplaces,thetoleranceis+/0.05.)
Themaximumoutput?
unitsperhour
Theminimumoutput?
unitsperhour

(c)Computetheefficiency.
(Roundyouranswerto2decimalplaces,thetoleranceis+/0.05.)
Efficiency= %

5

View the entire interaction

Hi I'm sending the solution. View the full answer

layout.docx

Sol: Problem (2)

Current layout
Proposed layout

Sol: Problem (6)

Current layout
Proposed layout

Sol: Problem (8)

Sol: Problem (10)

Sol: Problem (12)
(a) Task A is the bottleneck.
(b)

(c)...

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors and customizable flashcards—available anywhere, anytime.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access or to earn money with our Marketplace.

    Browse Documents
  • 890,990,898

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
  • 890,990,898

    Flashcards

    Browse existing sets or create your own using our digital flashcard system. A simple yet effective studying tool to help you earn the grade that you want!

    Browse Flashcards