Allied & ICAR Exam Bank • ALLIED_2895 NAT • 2 Marks

Section 2: Farm Machinery

Farm Machinery

Subtopic: Functional requirements, principles of working, construction and operation of manual, animal, tractor and renewable energy operated equipment for tillage, sowing, planting, fertilizer application, inter-cultivation, spraying, mowing, chaff cutting, harvesting and threshing

Question Statement:

A threshing cylinder has diameter $D = 0.6\text{ m}$ rotating at $N = 955\text{ rpm}$. The peripheral threshing speed ($v = \pi D N / 60$) in m/s (using $\pi = 3.1416$) is approximately:

Answer Key:

30

Step-by-Step Solution & Explanation

$v = \frac{3.1416 \times 0.6 \times 955}{60} = \frac{1800.7}{60} \approx 30.0\text{ m/s}$.
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