Practical Operations Management
2nd Edition
ISBN: 9781939297136
Author: Simpson
Publisher: HERCHER PUBLISHING,INCORPORATED
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Chapter 6, Problem 24P
Summary Introduction
Interpretation: Minimum number of workstations for the assembly line is to be discussed.
Concept Introduction: An assembly line is a sequence of work in which an output is produced by adding inputs to semi-finished goods that move from the work station to another work station.
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An assembly line is to operate eight hours per day with a desired output of 250 units per day. The following table contains information on this product’s task times and precedence relationships:
TASK
TASK TIME (SECONDS)
IMMEDIATE PREDECESSOR
A
50
—
B
20
A
C
25
A
D
35
A
E
60
B, C
F
60
C, D
G
50
E, F
H
90
G
What is the required workstation cycle time to meet the desired output rate?
Note: Round your answer to the nearest whole number.
Balance this line using the longest task time.
Note: Leave no cells blank - be certain to enter "0" wherever required.
What is the efficiency of your line balance, assuming it is running at the cycle time determined in part b?
Note: Round your answer to 1 decimal place.
An assembly line is to operate eight hours per day with a desired output of 200 units per day. The following table contains information on this product’s task times and precedence relationships:
TASK
TASK TIME(SECONDS)
IMMEDIATEPREDECESSOR
A
60
—
B
60
A
C
50
A
D
70
A
E
30
B, C
F
110
C, D
G
70
E, F
H
70
G
b. What is the required workstation cycle time to meet the desired output rate? (Round your answer to the nearest whole number.)
c. Balance this line using the longest task time. (Leave no cells blank - be certain to enter "0" wherever required.)
d. What is the efficiency of your line balance, assuming it is running at the cycle time determined in part b? (Round your answer to 1 decimal place.)
A company needs to rebalance a product layout for producing new plastic license plates. They plan to use the assembly line six hours in order to meet projected demand of 2,160 license plates each day. The following table describes the tasks involved in the production of this product:
Without regard to projected demand, what is the maximum possible cycle time for this assembly line?
Task
Time (secs)
Immediate Predecessor
a
3
none
b
4
none
c
5
a,b
d
7
none
e
9
c,d
Chapter 6 Solutions
Practical Operations Management
Ch. 6 - Prob. 1DQCh. 6 - Prob. 2DQCh. 6 - Prob. 3DQCh. 6 - Prob. 4DQCh. 6 - Prob. 5DQCh. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5P
Ch. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10PCh. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - Prob. 26PCh. 6 - Prob. 27PCh. 6 - Prob. 28PCh. 6 - Prob. 29PCh. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Prob. 1.1QCh. 6 - Prob. 1.2QCh. 6 - Prob. 1.3QCh. 6 - Prob. 1.4QCh. 6 - Prob. 2.1QCh. 6 - Prob. 2.2QCh. 6 - Prob. 2.3QCh. 6 - Prob. 3.1QCh. 6 - Prob. 3.2QCh. 6 - Prob. 3.3Q
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