Neco Model Questions Vol1 2017 Agricultural Science Question 4

Practice practical question 4 from the 2017 Neco Model Questions Vol1 Agricultural Science examination. This question covers Farm Machinery .

Neco Model Questions Vol1 2017 Agricultural Science Practical

Topic: Farm Machinery

Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2017 • AGRICULTURAL_SCIENCE • practical

A small 20‑horsepower (hp) diesel tractor is used on a farm to pull a cultivator. The tractor’s fuel consumption was recorded at three different draw‑bar loads (expressed as a percentage of the tractor’s rated draw‑bar pull). The data are: Load 25 % – fuel 3.2 L h⁻¹ Load 50 % – fuel 4.5 L h⁻¹ Load 75 % – fuel 6.8 L h⁻¹ The price of diesel is ₦165 per litre. The cultivator requires a constant draw‑bar pull of 15 kN to operate effectively. The tractor’s rated draw‑bar pull is 20 kN and its weight is 1 250 kg.

Question Parts

( a )

Assuming a linear relationship between fuel consumption (L h⁻¹) and draw‑bar load (expressed as a decimal), determine the equation of the line in the form Fuel = m·Load + c.

( b )

Using the equation from part (a), estimate the fuel consumption when the tractor is pulling the cultivator at the required draw‑bar pull of 15 kN.

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About This Question

This is Neco Model Questions Vol1 2017 Agricultural Science Question 4. It is one of the practical questions from the 2017 Neco Model Questions Vol1 Agricultural Science examination.

The question covers Farm Machinery .

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