Allied & ICAR Exam Bank • ALLIED_0825 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 combine harvester operates at forward speed $v_f = 4.0\text{ km/h}$ ($1.11\text{ m/s}$). For optimal crop feeding with reel index $K = 1.35$, the peripheral speed of the reel bats $v_r = K \cdot v_f = 1.35 \times 1.11$ in m/s is (rounded off to two decimal places):

Answer Key:

1.50

Step-by-Step Solution & Explanation

$v_r = 1.35 \times 1.111 = 1.50\text{ m/s}$.
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