Principles of Operations Management: Sustainability and Supply Chain Management, Student Value Edition (10th Edition)
10th Edition
ISBN: 9780134183954
Author: HEIZER
Publisher: PEARSON
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Chapter 9, Problem 13P
Illinois Furniture, Inc., produces all types of office furniture. The “Executive Secretary” is a chair that has been designed using ergonomics to provide comfort during long work hours. The chair sells for $130. There are 480 minutes available during the day, and the average daily demand has been 50 chairs. There are eight tasks:
a) Draw a precedence diagram of this operation.
b) What is the cycle time for this operation?
c) What is the theoretical minimum number of workstations?
d) Assign tasks to workstations.
e) What is the idle time per cycle?
f) How much total idle time is present in an 8-hour shift?
g) What is the efficiency of the assembly line, given your answer in (d)?
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Illinois Furniture, Inc., produces all types of officefurniture. The "Executive Secretary" is a chair that has beendesigned using ergonomics to provide comfort during long workhours. The chair sells for $130. There are 480 minutes availableduring the day, and the average daily demand has been 50 chairs.There are eight tasks: a) Draw a precedence diagram of this operation. •b) What is the cycle time for this operation?c) What is the theoretical minimum number of workstations?d) Assign tasks to workstations.e) What is the idle time per cycle?f) How much total idle time is present in an 8-hour shift?g) What is the efficiency of the assembly line, given your answer in (d)?
The following is a list of activities that must be completed in order to assemble a car.
Draw the precedence diagram.
Calculate the cycle time if there5 are 8 hours in a workday and 800 units desired per day.
Balance the line using the longest operation time as a selection rule.
Calculate the efficiency rating.
How much overtime would be needed for an additional 20 units?
Is this possible?
Task Time Feasible
TASK TIME PRECEDING Station Task Time Remaining Tasks
TASK (Seconds) TASK
A 16 -----
B 14 -----
C 22 -----
D…
A small assembly line for the assembly of power steering pumps needs to be balanced. Precedence diagram is shown below.
The cycle time is determined to be 1.7 minutes. How would the line be balanced by choosing the assignable task having the longest task time first? Fill in the table below. If your answer is zero, enter "0". Round your answers to one decimal place.
Station
Tasks
Total Time
Idle Time
1
B,A,C,D
2
E,F
3
G,H,I
Total
What is the assembly-line efficiency? Round your answer to one decimal place.
%
Chapter 9 Solutions
Principles of Operations Management: Sustainability and Supply Chain Management, Student Value Edition (10th Edition)
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 - Six processes are to be laid out in six areas...Ch. 9 - Prob. 11PCh. 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. 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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