OPERATIONS MANAGEMENT W/ CNCT+
12th Edition
ISBN: 9781259574931
Author: Stevenson
Publisher: MCG CUSTOM
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Chapter 16, Problem 2P
Rework Problem 1, treating the numbers in the table as profits instead of costs. Compute the total profit.
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The Mach 10 is a one-person sailboat manufactured by Creative Leisure. The final assembly plant is in
Cupertino, California. The assembly area is available for production of the Mach 10 for 200 minutes per
day. (The rest of the time it is busy making other products.) The daily demand is 56 boats. Given the
following information:
Task
A
B
C
D
EFGH -
Performance
Time (mins)
1
2
2
1
2
1
1
2
2
Predecessors
A
A
C
D, E, F
B
G, H
a) The correct precedence relationship with one of the possible assignment of tasks to workstations is
shown in Fig. 2
b) The operating efficiency of the assembly line with 5 workstations shown in the figure chosen above =
% (enter your response as a percentage rounded to one decimal place).
Fig. 1
Fig. 2
Fig. 3
B
B
B
H
D
F
F
Q
G
Q
The City Commission of Nashville has decided to build a botanical garden and picnic area in the heart of the city for the recreation of its
citizens. The precedence table for all the activities required to construct this area successfully is as follows:
Code
A
B
с
D
E
F
G
H
I
Description
Find location; determine resource requirements
Requisition of lumber and sand
Dig and grade
Saw lumber into appropriate sizes
Position lumber in correct locations
Time
(hrs)
20
60
100
30
20
10
20
10
30
Nail lumber together
Put sand in and under the equipment
Put dirt around the equipment
Put grass all over the garden, landscape, paint
Refer to the legend for the activity that corresponds to each code.
Using the line drawing tool, draw a Gantt chart for activites E through I of the project.
Immediate Predecessor(s)
None
A
A
B
D, C
E
F
F
G, H
A
B
C-
D-
E
F
G
H-
H
0
20 40
60
80 100 120 140 160 180 200
Q
✔
Chapter 16 Solutions
OPERATIONS MANAGEMENT W/ CNCT+
Ch. 16 - Why is scheduling fairly simple for repetitive...Ch. 16 - Prob. 2DRQCh. 16 - What are Gantt charts? How are they used in...Ch. 16 - Prob. 4DRQCh. 16 - Briefly describe each of these priority rules: a....Ch. 16 - Why are priority rules needed?Ch. 16 - What problems not generally found in manufacturing...Ch. 16 - Explain forward and backward schedulings and each...Ch. 16 - Prob. 9DRQCh. 16 - Prob. 10DRQ
Ch. 16 - Prob. 11DRQCh. 16 - What general trade-offs are involved in sequencing...Ch. 16 - Prob. 2TSCh. 16 - Prob. 3TSCh. 16 - One approach that can be effective in reducing the...Ch. 16 - Doctors and dentists offices frequently schedule...Ch. 16 - Prob. 3CTECh. 16 - Use the assignment method to determine the best...Ch. 16 - Rework Problem 1, treating the numbers in the...Ch. 16 - Assign trucks to delivery routes so that total...Ch. 16 - Develop an assignment plan that will minimize...Ch. 16 - Use the assignment method to obtain a plan that...Ch. 16 - The following table contains information...Ch. 16 - Using the information presented in the following...Ch. 16 - The following table shows orders to be processed...Ch. 16 - A wholesale grocery distribution center uses a...Ch. 16 - The times required to complete each of eight jobs...Ch. 16 - Prob. 11PCh. 16 - A shoe repair operation uses a two-step sequence...Ch. 16 - The following schedule was prepared by the...Ch. 16 - The production manager must determine the...Ch. 16 - A foreman has determined processing times at a...Ch. 16 - Given the information in the following table,...Ch. 16 - Given the following information on job times and...Ch. 16 - Prob. 18PCh. 16 - The following table contains order-dependent setup...Ch. 16 - The following table contains order-dependent setup...Ch. 16 - Prob. 21PCh. 16 - Given this information on planned and actual...Ch. 16 - Given the following data on inputs and outputs at...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Prob. 1CQ
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- Kiko Teddy Bear is a manufacturer of stuffed teddy bears. Kiko would like to be able to produce 40teddy bears per hour on its assembly line. The following information will assist in answering thequestions that follow: Task Information for Kiko Teddy Bear Work Element Task Description ImmediatePredecessor Task Time (inseconds)A Cut teddy bear pattern None 90B Sew teddy bear cloth A 75C Stuff teddy bear B 50D Glue on eyes C 20E Glue on nose C…arrow_forwardKiko Teddy Bear is a manufacturer of stuffed teddy bears. Kiko would like to be able to produce 40teddy bears per hour on its assembly line. The following information will assist in answering thequestions that follow: Task Information for Kiko Teddy Bear Work Element Task Description ImmediatePredecessor Task Time (inseconds)A Cut teddy bear pattern None 90B Sew teddy bear cloth A 75C Stuff teddy bear B 50D Glue on eyes C 20E Glue on nose C…arrow_forwardThe desired daily output for an assembly line is 300 units. This assembly line will operate 375 minutes per day. The following table contains information on this product's task times and precedence relationships: TASK TASK TIME (SECONDS) ADCOACH А 30 B 35 с 30 35 E 15 F 65 G 40 Н 25 IMMEDIATE PREDECESSOR - B с AADCC E-F D-G b. What is the required workstation cycle time to meet the desired output rate? Workstation cycle time seconds per unitarrow_forward
- Suppose the times for the individual operations for the in-line skate assembly are as follows: Task Description Time (sec) 1 Assemble wheels, bearings, and axle hardware 11 2 Assemble brake housing and pad 8 3 Complete wheel assembly 20 4 Inspect wheel assembly 13 5 Assemble boot 18 6 Join boot and wheel subassemblies 7 7 Add line and final assembly 10 8 Perform final inspection 10 Consider the production line achieving an output rate of 180 per hour below. Using the proposed design, calculate the total time and idle time for each workstation. If your answer is zero, enter "0". Round your answers to the nearest whole number. Station Tasks Total Time, seconds Idle Time, seconds A 1 and 2 B 3 C 5 D 4 and 6 E 7 and 8 Total What is the assembly line efficiency? Round your answer to one decimal place. %arrow_forwardThe City Commission of Nashville has decided to build a botanical garden and picnic area in the heart of the city for the recreation of its citizens. The precedence table for all the activities required to construct this area successfully is as follows: A- Time B- Code Description (hrs) Immediate Predecessor(s) C- A Find location; determine resource requirements 25 None Requisition of lumber and sand Dig and grade Saw lumber into appropriate sizes 55 A D- C 100 A E- 30 В E Position lumber in correct locations 20 D, C F- F Nail lumber together 10 E G- Put sand in and under the equipment Put dirt around the equipment G 25 F H F H- Put grass all over the garden, landscape, paint 35 G, H Refer to the legend for the activity that corresponds to each code. Using the line drawing tool, draw a Gantt chart for activities E through I of the project. 20 40 60 80 100 120 140 160 180 200 220arrow_forwardSuppose the times for the individual operations for the in-line skate assembly are as follows: Task Description Time (sec) 1 Assemble wheels, bearings, and axle hardware 19 2 Assemble brake housing and pad 17 Complete wheel assembly 35 4 Inspect wheel assembly 20 Assemble boot 35 6 Join boot and wheel subassemblies 16 7 Add line and final assembly 20 8 Perform final inspection 14 Consider the production line achieving an output rate of 100 per hour below. Using the proposed design, calculate the total time and idle time for each workstation. If your answer is zero, enter "0". Round your answers to the nearest whole number. Task5 Task1 Task 7 Task3 Task2 Task8 Task 4 Task6 Station Tasks Total Time, Idle Time, seconds seconds A 1 and 2 B 3 D 4 and 6 E 7 and 8 Total What is the assembly line efficiency? Round your answer to one decimal place. %arrow_forward
- Design an assembly line to manufacture cupcakes from scratch. - Assume the bakery operates for 1 eight-hour shift per day. - Assume a unit is equal to 1 dozen cupcakes and 40 units/day are required Balance the assembly line. Measure the efficiency Assignment format: The best way to do this is in Excel. You can use cell borders and insert shapes to build the assembly line. Use the math functions in Excel to balance your line and calculate efficiencies.arrow_forwardPlease do not give solution in image formate thanku.arrow_forward← The City Commission of Nashville has decided to build a botanical garden and picnic area in the heart of the city for the recreation of its citizens. The precedence table for all the activities required to construct this area successfully is as follows: Code Description A B C D E F G H 1 Find location; determine resource requirements Requisition of lumber and sand Dig and grade Saw lumber into appropriate sizes Position lumber in correct locations Nail lumber together Put sand in and under the equipment Put dirt around the equipment Put grass all over the garden, landscape, paint Time (hrs) Immediate Predecessor(s) 15 65 95 25 15 5 20 5 30 None A A B D, C E F F G. H Refer to the legend for the activity that corresponds to each code. Using the line drawing tool, draw a Gantt chart for activities E through I of the project D c D E F o H 0 20 40 60 80 100 120 140 160 180 SOU Garrow_forward
- d. What is the efficiency of your line balance? Use the theoretical minimum number of workstations in your calculation. (Round your answer to 1 decimal place.) Efficiencyarrow_forwardProblem II - Use the information of the line composed of the tasks shown in the following table (time is in minutes) to answer the following questions. Time (Minutes) 2 2 14 22 Task A B C 23 D E F G There are 238 labor days per year, each day are worked 2 shifts of 7.5 hours each one. Annual production is 42,840 units. 0 0 0 0 Assuming the same assignment of tasks per stations shown in the previous question, calculate the efficiency of station II. 80% 93.3 % 100% O O O O 90% 1 8 4 4.5 Predecessor 80% A A.B. C.D E F Assuming the same assignment of tasks per stations shown previously, calculate the efficiency of the line. 88.75% 85.45% 93.3%arrow_forwardGive typed full explanationarrow_forward
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