Neco Model Questions Vol1 2017 Agricultural Science Question 3

Practice practical question 3 from the 2017 Neco Model Questions Vol1 Agricultural Science examination. This question covers Farm Tools .

Neco Model Questions Vol1 2017 Agricultural Science Practical
Topic: Farm Tools
Question 3 NECO_MODEL_QUESTIONS_VOL1 • 2017 • AGRICULTURAL_SCIENCE • practical

A group of students were assigned to evaluate the ergonomic efficiency of two types of hand hoes used for weeding: a traditional wooden‑handled hoe (Hoe A) and a modern steel‑handled hoe (Hoe B). Both hoes have a handle length of 1.2 m. The handle angle with the ground can be adjusted. The average pulling force required to uproot a standard weed was measured at three different handle angles (30°, 45°, and 60°). The recorded forces are:

Question Parts

( a )
State the handle angle that requires the least average pulling force for each hoe. Show how you arrived at the answer.
( b )
Calculate the percentage reduction in average pulling force when using the optimal angle of Hoe B compared with the optimal angle of Hoe A. Express your answer to one decimal place.
( c )
A farmer normally uses Hoe A at 45°. If he switches to Hoe B and uproots 200 weeds, each requiring a displacement of 0.05 m during pulling, estimate the total work saved. (Work = force × distance). Give your answer in joules (J).
( d )
List two possible sources of experimental error that could affect the force measurements and suggest one way to minimise each.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Neco Model Questions Vol1 2017 Agricultural Science Question 3. It is one of the practical questions from the 2017 Neco Model Questions Vol1 Agricultural Science examination.

The question covers Farm Tools .

View More Neco Model Questions Vol1 2017 Agricultural Science Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support