An assembly line has been designed to make battery-powered beverage mixers. Task
ID: 460767 • Letter: A
Question
An assembly line has been designed to make battery-powered beverage mixers. Task details are shown in the table below:
a. What is the assigned cycle time (in minutes)?
b. What is the maximum output rate of this line in mixers per hour?
c. What is the total idle time per cycle?
d. What is the assembly line's efficiency?
Station
Task Assigned
Task Time (minutes)
points1
1
3.0
2
3; 4
1.5; 2.0
3
2; 5; 6
1.5; 1.5; 1.0
4
7
3.0
5
8
2.5
6
9; 10; 11
2.0; 1.0; 1.0
Station
Task Assigned
Task Time (minutes)
points1
1
3.0
2
3; 4
1.5; 2.0
3
2; 5; 6
1.5; 1.5; 1.0
4
7
3.0
5
8
2.5
6
9; 10; 11
2.0; 1.0; 1.0
Explanation / Answer
Cycle time is the time taken from the start to finish of a process. hence it is 4 minutes
a. Cycle time is 4.0 minutes (governed by stations 3 and 6).
for station 3, sum of task time is 4 minutes (1.5+1.5+1.0) and for station 6, its 4 minutes (2.0+1.0+1.0)
b. Maximum output is 60/4 = 15.0 units per hour.
c. Idle time is 1.0 + 0.5 + 0.0 + 1.0 + 1.5 + 0 = 4.0 minutes.
d. Efficiency is 20.0/24.0 = 83.3%.
Station Task Assigned Task Time (minutes) Sum of task time Idle time (cycle time - sum of task time) points1 1 3 3 1 2 3; 4 1.5; 2.0 3.5 0.5 3 2; 5; 6 1.5; 1.5; 1.0 4 0 4 7 3 3 1 5 8 2.5 2.5 1.5 6 9; 10; 11 2.0; 1.0; 1.0 4 0 20Related Questions
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