Gce Model Questions Vol1 2021 Agricultural Science Question 47
Practice objective / multiple choice question 47 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
A farmer has a tractor that can deliver a maximum power of \(150\) kW. He wishes to use a disc plough that requires power calculated by \(P = \dfrac{F \times v}{\eta}\), where \(F\) is the soil resistance force, \(v\) the forward speed and \(\eta\) the efficiency of the power transmission. The soil shear strength is \(30\) kN·m⁻², the plough width is \(0.5\) m and the working depth is \(0.20\) m. The tractor will operate at a speed of \(5\) km·h⁻¹ and the transmission efficiency is \(85\%\). Determine whether the tractor can operate the plough, and state the required power in kW (rounded to one decimal place).
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About This Question
This is Gce Model Questions Vol1 2021 Agricultural Science Question 47. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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