(1) Enter the number of the following tasks for each of the tasks shown in the table below.
Task | Number of Following Task |
a | |
b | |
c | |
d | |
e | |
f | |
g | |
h |
Work Station | Task Assigned |
I | |
II | |
III | |
IV |
Percentage of idle time | ________ % |
(4) Determine the output rate that would be associated with using the maximum cycle time. (Round your answer to 2 decimal places.)
Rate of output | ______________ units per day |
b.
(1) What is the shortest cycle time that will permit use of only two workstations? (Round your answer to 1 decimal place.)
Shortest cycle time | ___________ minutes |
(2) Determine the percentage of idle time that would result if two stations were used and each station was loaded with the worktime shown in Part b(1). (Leave no cells blank - be certain to enter "0" wherever required.)
Percentage of idle time | ____________% |
(3) What is the daily output under this arrangement a using the cycle time from Part b(1)? (Round your answer to 2 decimal places.)
Daily output | ______________unit per day |
(4) Determine the output rate that would be associated with using the maximum cycle time. (Round your answer to 2 decimal places.)
Rate of output | __________uniits per day |
The Precedence diagram will be :
Maximum cycle time= Sum of tasks time = 0.2+0.4+0.3+1.3+0.1+0.8+0.3+1.2=4.6 minutes
Minimum cycle time= length of longest task=1.3 minutes
A number of work stations required=(sum of total task times) /(cycle time)
= 4.6/1.3
= 3.53 rounded off to 4
Therefore four workstations are required.
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