Neco 2021 Agricultural Science Question 39
Practice objective / multiple choice question 39 from the 2021 Neco Agricultural Science examination.
An engine runs at \(1500\ \text{rpm}\) and the required drum speed for a threshing machine is \(300\ \text{rpm}\). A two‑stage gear train is to be used. The first stage consists of a driver gear with \(20\) teeth meshing with a driven gear of unknown teeth \(x\). The second stage uses a driver gear of unknown teeth \(y\) meshing with a driven gear of \(40\) teeth. Determine integer values for \(x\) and \(y\) that give the required overall speed reduction of 5:1.
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About This Question
This is Neco 2021 Agricultural Science Question 39. It is one of the objective questions from the 2021 Neco Agricultural Science examination.
Difficulty level: Medium .
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