Efficiency capacity is defined as which ratio?

Efficiency capacity is defined as which ratio?

• A. Actual output / Effective capacity
• B. Actual output / Design capacity
• C. Design capacity / Actual output
• D. Effective capacity / Actual output

Answer: (A)

Efficiency capacity measures how much of the attainable output a system actually achieves. Attainable output is the effective capacity—the maximum sustainable output once you account for normal losses like machine downtime, maintenance, setup, and quality problems. So efficiency is the ratio of actual output to effective capacity: how much you produced compared to what you could reliably produce. If actual output matches the effective capacity, efficiency is 1 (100%). Using design capacity would compare output to the theoretical maximum under perfect conditions, which isn’t the same as efficiency since it ignores real-world losses. Reversing the ratio or using the wrong numerator or denominator would not reflect how well the system converts available, usable capacity into actual production.

Efficiency capacity measures how much of the attainable output a system actually achieves. Attainable output is the effective capacity—the maximum sustainable output once you account for normal losses like machine downtime, maintenance, setup, and quality problems. So efficiency is the ratio of actual output to effective capacity: how much you produced compared to what you could reliably produce. If actual output matches the effective capacity, efficiency is 1 (100%).

Using design capacity would compare output to the theoretical maximum under perfect conditions, which isn’t the same as efficiency since it ignores real-world losses. Reversing the ratio or using the wrong numerator or denominator would not reflect how well the system converts available, usable capacity into actual production.