Allied & ICAR Exam Bank • ALLIED_0195 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 knapsack sprayer has a spray swath of $1.0\text{ m}$. The operator walks at $3.0\text{ km/h}$ and the nozzle discharge is $0.75\text{ L/min}$. The application rate in L/ha is:

Answer Key:

150

Step-by-Step Solution & Explanation

Coverage rate $= (1.0 \times 3.0)/10 = 0.30\text{ ha/h}$. Discharge $= 0.75 \times 60 = 45.0\text{ L/h}$. Rate $= 45 / 0.30 = 150.0\text{ L/ha}$.
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