Neco Model Questions Vol1 2023 Agricultural Science Question 3

Practice practical question 3 from the 2023 Neco Model Questions Vol1 Agricultural Science examination. This question covers Farm Tools .

Neco Model Questions Vol1 2023 Agricultural Science Practical

Topic: Farm Tools

Question 3 NECO_MODEL_QUESTIONS_VOL1 • 2023 • AGRICULTURAL_SCIENCE • practical

A farmer is using a hand hoe to prepare a garden plot. The hoe has a blade width of 5 cm, a blade length of 30 cm and a handle length of 120 cm. The farmer makes 45 strokes per minute. Each stroke penetrates the soil to a depth of 12 cm and moves the blade forward 25 cm. The bulk density of the soil is 1.3 g cm⁻³. Assume that the only work done is lifting the soil vertically through the depth of penetration.

Question Parts

( a )

Calculate the volume of soil displaced in one stroke (in cm³).

( b )

Determine the total volume of soil displaced per minute (in m³).

( c )

Find the mass of soil displaced per minute (in kg).

( d )

Assuming the soil is lifted vertically through the 12 cm depth, calculate (i) the work done per minute (in joules) and (ii) the average power output of the farmer’s effort (in watts). Use g = 9.81 m s⁻².

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About This Question

This is Neco Model Questions Vol1 2023 Agricultural Science Question 3. It is one of the practical questions from the 2023 Neco Model Questions Vol1 Agricultural Science examination.

The question covers Farm Tools .

View More Neco Model Questions Vol1 2023 Agricultural Science Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

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