Gce Model Questions Vol1 2025 Agricultural Science Question 46
Practice objective / multiple choice question 46 from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
The diagram shows a tractor used for ploughing on level ground. The tractor engine is rated at 45 kW and the transmission efficiency to the wheels is 85 %. The tractor weighs 3.5 tonnes and the coefficient of traction between the tyres and the soil is 0.6. The draft required by the plough varies with the forward speed \(v\) (in km h\(^{-1}\)) according to \(D = 0.5 + 0.02v\) kN. Assuming the only limitation to the maximum speed is the available power at the wheels, calculate the greatest speed (in km h\(^{-1}\)) the tractor can maintain while pulling the plough. Give your answer rounded to the nearest whole kilometre per hour.
Answer Options
About This Question
This is Gce Model Questions Vol1 2025 Agricultural Science Question 46. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.