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GATE 2021 AG – Question 32

Agricultural Process Engineering · Evaporation and Drying · 1 mark · Numerical answer

Fresh potatoes1000 kg are dried from 14% to 93% total solids. Peeling loses7% of original potatoes. Find dried product yield from fresh potatoes in percent, as an integer.

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Correct answer: 14.0 to 14.0

Explanation

After peeling, mass=930 kg. Assuming the lost peel has the stated initial solids fraction, remaining solids=.14(930)=130.2 kg. Final product=130.2/.93=140 kg. Yield relative to original1000 kg is **14%**. The93% final solids is not the water-removal percentage.

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