Neco 2018 Agricultural Science Question 4

Practice essay / theory question 4 from the 2018 Neco Agricultural Science examination. This question covers Farm Machinery .

Neco 2018 Agricultural Science Essay / Theory

Topic: Farm Machinery

Question 4 NECO • 2018 • AGRICULTURAL_SCIENCE • essay

A farmer owns a 30 kW tractor fitted with a 3‑point hitch. The tractor is used to pull a disc harrow that has a working width of 2.4 m. The tractor moves forward at a speed of 5 km/h. The field to be cultivated measures 12 ha. Assume an overall field efficiency of 0.80.

Question Parts

( a )

Calculate the field capacity of the disc harrow in hectares per hour.

( b )

Determine the total time (in hours) required to cultivate the whole 12 ha field at the calculated capacity.

( c )

If the forward speed is increased to 6 km/h (all other factors unchanged), recalculate the field capacity and the total time required. Comment on the effect of the speed change.

( d )

List two routine maintenance practices that help keep the tractor operating at optimum performance.

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About This Question

This is Neco 2018 Agricultural Science Question 4. It is one of the essay questions from the 2018 Neco Agricultural Science examination.

The question covers Farm Machinery .

View More Neco 2018 Agricultural Science Questions More Neco Practice Questions Back to Questions

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