Neco 2021 Agricultural Science Question 12
Practice objective / multiple choice question 12 from the 2021 Neco Agricultural Science examination.
A farmer harvests \(2\) tonnes of fresh cassava roots with an initial moisture content of \(60\%\) (wet basis). After peeling and slicing, the chips are dried in a solar dryer. The drying rate (kg water removed per hour per tonne of wet chips) is given by \(R = 30 - 0.5T\), where \(T\) is the temperature above \(30^{\circ}\)C. The dryer operates at \(45^{\circ}\)C for the first \(6\) h and then at \(35^{\circ}\)C thereafter. The target final moisture content is \(12\%\) (wet basis). Determine the total drying time (in hours, to one decimal place) required to reach the target moisture content.
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About This Question
This is Neco 2021 Agricultural Science Question 12. It is one of the objective questions from the 2021 Neco Agricultural Science examination.
Difficulty level: Hard .
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