Waec Model Questions Vol1 2020 Agricultural Science Question 49
Practice objective / multiple choice question 49 from the 2020 Waec Model Questions Vol1 Agricultural Science examination.
A plough requires a draft force D (kN) given by D = 0.8 × √W, where W is the wheel load in kN. A tractor applies a wheel load of 30 kN and operates at a speed of 5 km h⁻¹. The overall transmission efficiency is 85 %. (a) Calculate the minimum engine power (in kW) required to pull the plough. (b) Is a tractor rated at 45 kW adequate for this operation?
Answer Options
About This Question
This is Waec Model Questions Vol1 2020 Agricultural Science Question 49. It is one of the objective questions from the 2020 Waec 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.