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 droplet size spectrum of an agricultural sprayer is characterized by Volume Median Diameter (VMD or $D_{v0.5}$), defined as:
Options:
(A) The droplet diameter such that $50\%$ of total spray volume is in droplets smaller than this diameter
(B) The arithmetic average of droplet diameters
(C) The largest droplet diameter observed
(D) The diameter of droplets floating in air
Answer Key:
A
Step-by-Step Solution & Explanation
VMD divides spray volume equally into two halves: half volume in smaller droplets and half in larger droplets.