Principles Of Operations Management
11th Edition
ISBN: 9780135173930
Author: RENDER, Barry, HEIZER, Jay, Munson, Chuck
Publisher: Pearson,
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Chapter 9, Problem 25P
a)
Summary Introduction
To draw: The precedence diagram of the operation.
b)
Summary Introduction
To determine: The cycle time of the operation.
c)
Summary Introduction
To determine: The theoretical minimum number of workstations.
d)
Summary Introduction
To assign: The various tasks to workstations.
e)
Summary Introduction
To determine: The overall actual efficiency of the assembly line.
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Students have asked these similar questions
An assembly plant for the Blood Pressure RX, a portableblood pressure device, has 400 minutes available daily in theplant for the device, and the average demand is 80 units per day.Final assembly requires 6 separate tasks. Information concerningthese tasks is given in the following table. a) Draw a precedence diagram of this operationb) Given the demand, what is the cycle time for this operation?c) What is the theoretical minimum number of workstations?f d) Assign tasks to workstations.e) What is the overall actual efficiency of the assembly line?
An assembly line must be designed to produce 40 containers per hour. The following data give the necessary information
Table 1
TASK
IMMEDIATE PREDECESSOR
TASK TIME (sec)
A
None
60
B
A
12
C
B
35
D
A
55
E
D
10
F
E
50
G
F, C
5
Draw the precedence diagram. ii. Compute the cycle time (in seconds) to achieve the desired output rate.
iii. What is the theoretical minimum number of stations?
iv. Assign the tasks to workstation?
v. What is the efficiency of the line?
PLEASE ANSWER THE FOLLOWING QUESTIONS: iV, & v.
The Action Toy Company has decided to manufacture a new
train set, the production of which is broken into six steps.
The demand for the train is 4,800 units per 40-
hourworkweek: a) Draw a precedence diagram of this
operation. b) Given the demand, what is the cycle time for
this operation? c) What is the theoretical minimum number
of workstations? d) Assign tasks to workstations. e) How
much total idle time is present each cycle? f) What is the
efficiency of the assembly line with five stations? With six
stations?
TASK
PERFORMANCE TIME (sec)
PREDECESSORS
A
20
None
30
15
15
A
E
10
В. С
30
D, E
Chapter 9 Solutions
Principles Of Operations Management
Ch. 9 - Prob. 1EDCh. 9 - Prob. 1DQCh. 9 - Prob. 2DQCh. 9 - Prob. 3DQCh. 9 - Prob. 4DQCh. 9 - Prob. 5DQCh. 9 - Prob. 6DQCh. 9 - Prob. 7DQCh. 9 - Prob. 8DQCh. 9 - Prob. 9DQ
Ch. 9 - Prob. 10DQCh. 9 - Prob. 11DQCh. 9 - Prob. 12DQCh. 9 - Prob. 13DQCh. 9 - Prob. 14DQCh. 9 - Prob. 15DQCh. 9 - Prob. 16DQCh. 9 - Prob. 17DQCh. 9 - Prob. 18DQCh. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Roy Creasey Enterprises, a machine shop, is...Ch. 9 - Adam Munson Manufacturing, in Gainesville,...Ch. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Prob. 9PCh. 9 - Six processes are to be laid out in six areas...Ch. 9 - Stanford Rosenberg Computing wants to establish an...Ch. 9 - Illinois Furniture, Inc., produces all types of...Ch. 9 - Prob. 14PCh. 9 - The Action Toy Company has decided to manufacture...Ch. 9 - Prob. 16PCh. 9 - Prob. 17PCh. 9 - Prob. 18PCh. 9 - Prob. 19PCh. 9 - Prob. 20PCh. 9 - Prob. 21PCh. 9 - Prob. 22PCh. 9 - Prob. 23PCh. 9 - Prob. 25PCh. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 9 - Prob. 1CSCh. 9 - Prob. 2CSCh. 9 - Henry Coupe, the manager of a metropolitan branch...Ch. 9 - Prob. 4CSCh. 9 - Prob. 1.1VCCh. 9 - Prob. 1.2VCCh. 9 - Prob. 1.3VCCh. 9 - Prob. 1.4VCCh. 9 - Prob. 1.5VCCh. 9 - Prob. 1.6VCCh. 9 - Prob. 2.1VCCh. 9 - Prob. 2.2VCCh. 9 - Prob. 2.3VC
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- Management wants to design an assembly line that will turn out 800 videotapes per day. There will be eight working hours in each day. The industrial engineering staff has assembled the information below: A) Determine the maximum and minimum cycle times.B) Determine the optimum cycle time.C) What is the minimum number of stations needed?D) Draw the precedence diagram.E) Assign tasks to stations in order of most following tasks first. Submit an Excel file based on Chapter 6 Excel Template to indicate your computation.arrow_forwardThe Action Toy Company has decided to manufacturea new train set, the production of which is broken intosix steps. The demand for the train is 4,800 units per 40-hourworkweek: a) Draw a precedence diagram of this operation.b) Given the demand, what is the cycle time for this operation?c) What is the theoretical minimum number of workstations?d) Assign tasks to workstations.e) How much total idle time is present each cycle?f) What is the efficiency of the assembly line with five stations?With six stations?arrow_forwardThe Action Toy Company has decided to manufacture a new train set, the production of which is broken into six steps. The demand for the train is 4,800 units per 40-hourworkweek: a) Draw a precedence diagram of this operation. b) Given the demand, what is the cycle time for this operation? c) What is the theoretical minimum number of workstations?arrow_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_forwardGiven the following task, times, and sequence, develop a balanced line capable of operating with a I 0-minute cycle time at Dave Visser's company. a) Draw the precedence diagram.b) Assign tasks to the minimum feasible number of workstations according to the greatest time remaining (ranked positional weight) decision rule.c) What is the efficiency of the process?arrow_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_forward
- The desired daily ouput for an assembly line is 420 units. This assembly line will operate 595 minutes per day. The following table contains information on the products task times and precedence relationships Task. Task time-seconds Immediate predecessor A. 35 - B. 40 A C 30 A D 40 B E 20 C F 70 C G 45 E-F H 30 D-G The required workstation cycle time to meet the desired output time is 85 seconds Balance this line using the largest number of following tasks. Use the longest task time as a secondary criterion The answer gives only 4 workstations as option Have to fill out following Workstation. Task Idle time 1 ?? ?? 2 ?? ?? 3…arrow_forwardImprove the given string diagram by rearranging the work station.arrow_forwardThe Carry-on Luggage Company must set up an assembly line for a wheeled carry-on bag. Forecasts show that 60 units per hour should be produced. The tasks required, task times, and precedence relationships are as follows: Task Time (seconds) Predecessors A 30 B 50 A C 25 A 10 B E 25 B F 15 B С, Е, F D, G G 10 H 30 a) What is the cycle time? b) What is the theoretical number of workstations? c) Balance the line by assigning the tasks to the workstations using the longest operating time rule. d) What is the efficiency of the balanced line?arrow_forward
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