Neco 2025 Agricultural Science Question 3

Practice practical question 3 from the 2025 Neco Agricultural Science examination. This question covers Farm Tools .

Neco 2025 Agricultural Science Practical

Topic: Farm Tools

Question 3 NECO • 2025 • AGRICULTURAL_SCIENCE • practical

A student is investigating how the angle of a hand hoe blade affects the effort required to turn over a soil plot. The plot measures 5 m by 2 m and must be turned to a depth of 0.15 m. The hoe has a handle length of 1.20 m and the student applies an average force of 150 N at the handle end. Two blade angles are tested: 30° and 45°. The student records the number of strokes needed to turn the whole plot: 120 strokes at 30° and 95 strokes at 45°.

( a )

List the main parts of a hand hoe and state the function of each part.

( b )

Calculate the work done by the student in one stroke when the blade angle is 30°.

( c )

Using the work per stroke found in (b), calculate the total work required to turn over the whole plot for each blade angle.

( d )

Determine the percentage reduction in total work when the 45° blade angle is used compared with the 30° angle. Show your working.

( e )

Suggest two practical reasons why increasing the blade angle reduces the work required.

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This is Neco 2025 Agricultural Science Question 3. It is one of the practical questions from the 2025 Neco Agricultural Science examination.

The question covers Farm Tools .

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