Allied & ICAR Exam Bank • ALLIED_0817 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:

The relative span of a droplet size spectrum is defined as $\text{Span} = \frac{D_{v0.9} - D_{v0.1}}{D_{v0.5}}$. For a hydraulic nozzle with $D_{v0.9} = 350\text{ \mu m}$, $D_{v0.1} = 150\text{ \mu m}$, and $D_{v0.5} = 200\text{ \mu m}$, the relative span $\frac{350 - 150}{200}$ is:

Answer Key:

1.0

Step-by-Step Solution & Explanation

$\text{Span} = (350 - 150) / 200 = 200 / 200 = 1.0$.
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