Gce Model Questions Vol1 2022 Agricultural Science Question 42
Practice objective / multiple choice question 42 from the 2022 Gce Model Questions Vol1 Agricultural Science examination.
A tractor weighing 3000 kg pulls a moldboard plough 1.2 m wide at a speed of 5 km h\(^{-1}\). The draft per metre width is given by \(D = a + b v^{2}\) where \(a = 150\) N m\(^{-1}\), \(b = 10\) N s\(^{2}\) m\(^{-3}\) and \(v\) is the tractor speed in m s\(^{-1}\). The rolling‑resistance coefficient is 0.02. If diesel has an energy value of 42 MJ kg\(^{-1}\), the engine efficiency is 0.35 and diesel density is 0.85 kg L\(^{-1}\), how many litres of diesel will be consumed in 2 hours of continuous operation?
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About This Question
This is Gce Model Questions Vol1 2022 Agricultural Science Question 42. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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