Waec Model Questions Vol1 2019 Agricultural Science Question 4

Practice practical question 4 from the 2019 Waec Model Questions Vol1 Agricultural Science examination. This question covers Farm Machinery, Power and Draft .

Waec Model Questions Vol1 2019 Agricultural Science Practical
Topics: Farm Machinery Power and Draft
Question 4 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • AGRICULTURAL_SCIENCE • practical

A small tractor with a rated engine power of 25 kW is used to pull a single‑bottom plough. The tractor moves at a constant speed of 5 km h⁻¹. The plough has a working width of 1.2 m and the draft required is 1 500 N per metre of width. The specific fuel consumption of the tractor engine is 0.25 L kW⁻¹ h⁻¹ and diesel costs ₦150 per litre. The tractor is to be operated for 4 hours in the field.

Question Parts

( a )
Calculate the total draft force that the tractor must overcome to pull the plough.
( b )
Determine the power required to overcome this draft at the given speed and state whether the tractor engine power is adequate.

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About This Question

This is Waec Model Questions Vol1 2019 Agricultural Science Question 4. It is one of the practical questions from the 2019 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Farm Machinery, Power and Draft .

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