OPERATIONS MGMT.(EBOOK)W/MYOMLAB>IC<
15th Edition
ISBN: 9781269982153
Author: HEIZER
Publisher: PEARSON C
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Textbook Question
Chapter 9, Problem 12P
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:
| TASK | PERFORMANCE TIME (MIN) | TASK MUST FOLLOW TASK LISTED BELOW |
| A | 4 | − |
| B | 7 | − |
| C | 6 | A, B |
| D | 5 | C |
| E | 6 | D |
| F | 7 | E |
| G | 8 | E |
| H | 6 | F. G |
- 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 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:
Task
Performance Time (mins)
Task Must Follow Task Listed Below
A
4
−
B
6
−
C
6
A, B
D
5
C
E
7
D
F
6
E
G
7
E
H
7
F, G
This exercise only contains parts b, c, d, e, f, and g.
The cycle time for the production of a chair =
9.69. minutes (round your response to two decimal places).
The theoretical minimum number of
workstations=5 (round your response up to the next whole number).
d) The assignment of tasks to workstations should be: (Hint:…
The XYZ company produces all type of office furniture. The “Executive Secretary” is a chair that has been designed using ergonomics to provide comfort during long office 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;
Task
Time (min)
Immediate predecessor
A
4
-
B
7
-
C
6
A, B
D
5
C
E
6
D
F
7
E
G
8
E
I
6
F, G
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 the workstations
e) What is the idle time per cycle?
f) What is the efficiency of the assembly line?
Vikiki Furniture, Inc. produces all types of office furniture. The "Executive Secretary" is a sofa-bed that has been designed using ergonomics to provide comfort during long work hours. The sofa-bed sells for $138. There are 580 minutes available during the day, and the average daily demand has been 65 items. There are eight tasks: Task performance time (min) task must follow task listed A 4 -- B 7 -- C 6 A, B D 5 C E 6 D F 7 E G 8 E H 6 F, G Total 49 min What is the Cycle time for this operation?
Chapter 9 Solutions
OPERATIONS MGMT.(EBOOK)W/MYOMLAB>IC<
Ch. 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 - What are the requirements for a focused work...Ch. 9 - Prob. 10DQ
Ch. 9 - Prob. 11DQCh. 9 - Prob. 12DQCh. 9 - Prob. 13DQCh. 9 - Prob. 14DQCh. 9 - Prob. 15DQCh. 9 - Prob. 16DQCh. 9 - Explain the concept of cross-docking.Ch. 9 - What is a heuristic? Name several that can be used...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Three departmentsmilling (M), drilling (D), and...Ch. 9 - Roy Creasey Enterprises, a machine shop, is...Ch. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Six processes are to be laid out in six areas...Ch. 9 - After an extensive product analysis using group...Ch. 9 - Stanford Rosenberg Computing wants to establish an...Ch. 9 - Illinois Furniture, Inc., produces all types of...Ch. 9 - Sue Helms Appliances wants to establish an...Ch. 9 - The Action Toy Company has decided to manufacture...Ch. 9 - The following table details the tasks required for...Ch. 9 - Tailwind, Inc., produces high-quality but...Ch. 9 - Prob. 17PCh. 9 - Because of the expected high demand for Mach 10,...Ch. 9 - Prob. 19PCh. 9 - Suppose production requirements in Solved Problem...Ch. 9 - The preinduction physical examination given by the...Ch. 9 - Samuel Smith's company wants to establish an...Ch. 9 - As the Cottrell Bicycle Co. of St. Louis completes...Ch. 9 - Prob. 1CSCh. 9 - Prob. 2CSCh. 9 - Prob. 3CSCh. 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. 2.1VCCh. 9 - Prob. 2.2VCCh. 9 - Prob. 2.3VC
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