Discussion
A cleaner processes \( 6 \) tonnes per hour with a screen area of \( 2.4 \) m\(^2\). The specific capacity is
Answer: B
Correct answer: 2.5 t/h per m\(^2\)
Specific capacity is throughput divided by screen area:
\[ \frac{6.0}{2.4} = 2.5\ \mathrm{t/h\ per\ m^2} \]
Expressing capacity this way makes machines of different size comparable and lets a required area be calculated from a required throughput. It must be read alongside effectiveness, though: the same machine can be run at a higher specific capacity at the cost of a poorer separation, so the two figures are only meaningful together.
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