Allied & ICAR Exam Bank • ALLIED_0203 NAT • 2 Marks

Section 2: Farm Machinery

Farm Machinery

Subtopic: Calculation of performance parameters – field capacity, efficiency, performance index, application rate and losses

Question Statement:

A self-propelled high-clearance boom sprayer with 20 nozzles operates at $7.2\text{ km/h}$. Each nozzle delivers $1.2\text{ L/min}$ and nozzle spacing is $50\text{ cm}$. Boom width is $10\text{ m}$. Rate in L/ha is:

Answer Key:

200

Step-by-Step Solution & Explanation

Coverage $= (10.0 \times 7.2)/10 = 7.2\text{ ha/h}$. Total $Q = 20 \times 1.2 = 24.0\text{ L/min} = 1440\text{ L/h}$. Rate $= 1440 / 7.2 = 200.0\text{ L/ha}$.
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