Gce Model Questions Vol1 2024 Agricultural Science Question 14
Practice objective / multiple choice question 14 from the 2024 Gce Model Questions Vol1 Agricultural Science examination.
A farmer needs to dry 1 000 kg of maize from 25 % to 14 % moisture (wet basis). The amount of water to be removed is therefore 110 kg. The drying rate (kg water h⁻¹) varies with the drying temperature \(T\) (°C) according to \(R = 0.5T - 5\) for \(30 \le T \le 60\). Each kilogram of water removed consumes 0.8 kWh of electricity, costing N 25 per kWh. Labour costs N 50 per hour of drying. In addition, for every degree Celsius above 45 °C a quality penalty of N 10 per kilogram of maize is incurred. Determine the integer drying temperature (°C) within the allowed range that minimises the total cost (electricity + labour + penalty).
Answer Options
About This Question
This is Gce Model Questions Vol1 2024 Agricultural Science Question 14. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.