Neco Model Questions Vol1 2025 Agricultural Science Question 34
Practice objective / multiple choice question 34 from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
A farmer wants to use a tractor to operate a three‑bottom plow on a 12‑ha field. The tractor's drawbar power rating is 45 kW. Each bottom requires a draft of 500 N and the tractor moves forward at 5 km h⁻¹. The tractor's transmission efficiency is 85 % and its own rolling resistance is calculated using a coefficient of 0.02 on a 3 000 kg machine. Water‑free operation is assumed. (a) Determine whether the tractor can continuously operate the plow for 8 hours without exceeding its power rating. (b) If it can, calculate the total fuel consumption, given a fuel use of 0.25 L per kWh of engine work performed. Give the fuel amount to one decimal place.
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About This Question
This is Neco Model Questions Vol1 2025 Agricultural Science Question 34. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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