Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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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
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Chapter 16 Solutions
Operations Management
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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- 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 ✔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_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_forward
- The 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_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 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_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 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_forwardRock View Restaurant is a new fast food restaurant chain. The Operations Manager has dividedits normal drive-through service process into the following tasks:Tasks Description Task Time(InSeconds)PredecessorsA Take order 25 NoneB Receive payment 20 AC Gather drinks 35 AD Gather food 32 AE Put food etc. in bag 25 C,DF Give food to customer 10 B,E Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served.…arrow_forwardRock View Restaurant is a new fast food restaurant chain. The Operations Manager has dividedits normal drive-through service process into the following tasks:Tasks Description Task Time(InSeconds)PredecessorsA Take order 25 NoneB Receive payment 20 AC Gather drinks 35 AD Gather food 32 AE Put food etc. in bag 25 C,DF Give food to customer 10 B,E Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served.…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
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