CMA Intermediate · Operations Management and Strategic Management · Simulation and Line Balancing
An assembly line has 5 workstations and a cycle time of 50 seconds. The total of all task times is 200 seconds. What is the balance efficiency of the line?
The balance efficiency is 80%. Total task time of 200 seconds is divided by the product of 5 stations and the 50-second cycle time, which is 250 seconds of available station time. The remaining 20% is idle time, known as balance delay.
- A60%
- B75%
- C80%Correct
- D90%
Explanation
Efficiency = total task time / (stations x cycle time) = 200/(5x50) = 200/250 = 80%. The 75% option wrongly uses 4 stations in the numerator logic, and 90% has no basis in the data. Balance delay is 20%.
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