Neco 2018 Agricultural Science Question 22
Practice objective / multiple choice question 22 from the 2018 Neco Agricultural Science examination.
A tractor has a rated engine power of \(45\) kW and a transmission efficiency of \(85\%\). It must pull a plough that requires a constant drawbar pull of \(12\) kN up a \(5\%\) slope. (a) Determine the maximum speed (in m/s) the tractor can maintain under these conditions. (b) If the tractor operates at that speed for \(4\) hours, how many litres of diesel are consumed? Assume diesel has an energy density of \(36\) MJ/L and the engine thermal efficiency is \(30\%\). Give your answer to two decimal places.
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About This Question
This is Neco 2018 Agricultural Science Question 22. It is one of the objective questions from the 2018 Neco Agricultural Science examination.
Difficulty level: Medium .
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