Waec Model Questions Vol1 2017 Agricultural Science Question 3
Practice objective / multiple choice question 3 from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
A tractor with a rated engine power of 50 kW operates at 1800 rpm while pulling a moldboard plough. The draft force required to pull the plough is given by D = a + b·M, where M is the soil moisture content (%), a = 2000 N and b = 50 N · %⁻¹. The field being cultivated has an average moisture content of 12 %. The tractor moves at a forward speed of 5 km h⁻¹. The tractor's fuel consumption rate is 0.25 L kW⁻¹ h⁻¹ of mechanical power output. Calculate the amount of fuel (in litres) the tractor will consume during a 2‑hour operation under these conditions. Give your answer to one decimal place.
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About This Question
This is Waec Model Questions Vol1 2017 Agricultural Science Question 3. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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