Neco 2019 Agricultural Science Question 30
Practice objective / multiple choice question 30 from the 2019 Neco Agricultural Science examination.
Fresh maize has an initial moisture content of \(70\%\) (wet basis). To be safely stored, the moisture must be reduced to \(13\%\). In a dryer, the moisture loss rate (percentage points per hour) is given by \(R = k (T-20)\) where \(k = 0.5\%\) per °C per hour and \(T\) is the drying‑air temperature in °C. If the dryer operates at \(T = 35\)°C, how many hours are required to reach the target moisture content? Give your answer to one decimal place.
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About This Question
This is Neco 2019 Agricultural Science Question 30. It is one of the objective questions from the 2019 Neco Agricultural Science examination.
Difficulty level: Hard .
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