Allied & ICAR Exam Bank • ALLIED_2913NAT • 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 knapsack sprayer operator maintains pump discharge rate $q = 0.6\text{ L/min}$ at walking speed $v = 1.0\text{ m/s} = 60\text{ m/min}$ with spray swath width $W = 1.0\text{ m}$. The application rate in L/ha ($q \times 10000 / (W \times v)$) is:
Answer Key:
100
Step-by-Step Solution & Explanation
Area covered per min = $1.0\text{ m} \times 60\text{ m} = 60\text{ m}^2$. Rate = $\frac{0.6\text{ L}}{60\text{ m}^2} \times 10000\text{ m}^2 = 100\text{ L/ha}$.