Allied & ICAR Exam Bank • ALLIED_2836 NAT • 2 Marks

Section 2: Farm Machinery

Farm Machinery

Subtopic: Soil tillage

Question Statement:

A rotavator rotor has rotational speed $N = 210\text{ rpm}$ and radius $R = 25\text{ cm} = 0.25\text{ m}$. The peripheral tip velocity of the blade in m/s (using $\pi = 3.1416$) is approximately:

Answer Key:

5.5

Step-by-Step Solution & Explanation

$v = \frac{2 \times 3.1416 \times 0.25 \times 210}{60} = \frac{329.87}{60} \approx 5.5\text{ m/s}$.
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