Neco Model Questions Vol1 2020 Agricultural Science Question 4

Practice essay / theory question 4 from the 2020 Neco Model Questions Vol1 Agricultural Science examination. This question covers Farm Machinery .

Neco Model Questions Vol1 2020 Agricultural Science Essay / Theory
Topic: Farm Machinery
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2020 • AGRICULTURAL_SCIENCE • essay

A farmer intends to cultivate a 5‑hectare field using a tractor fitted with a 2‑bottom disc plough. Each disc bottom has a working width of 0.45 m. The farmer allows a 5 % overlap between successive passes to ensure complete coverage. The tractor can maintain a forward speed of 5 km h⁻¹ and the overall field efficiency (including turning, overlapping and delays) is estimated at 80 %.

Question Parts

( a )
Calculate the effective working width of the plough after accounting for the overlap.
( b )
Determine the theoretical field capacity (ha h⁻¹) of the tractor‑plough combination before applying field efficiency.
( c )
Adjust the capacity for the given field efficiency and compute the actual time required to cultivate the entire 5‑ha field.
( d )
Briefly discuss two factors that could cause the actual field capacity to differ from the calculated value.

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About This Question

This is Neco Model Questions Vol1 2020 Agricultural Science Question 4. It is one of the essay questions from the 2020 Neco Model Questions Vol1 Agricultural Science examination.

The question covers Farm Machinery .

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