Allied & ICAR Exam Bank • ALLIED_2904NAT • 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:
In a stationary power thresher, the peripheral cylinder speed for wheat threshing is typically $20-25\text{ m/s}$, whereas for delicate soybean/pulses it is reduced to $10-12\text{ m/s}$ to minimize split grain damage. The ratio of wheat to pulse threshing speed is approximately:
Answer Key:
2
Step-by-Step Solution & Explanation
$22 / 11 = 2$. Pulses require half the impact speed to avoid seed coat cracking.