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:
Hollow cone nozzles are preferred over flat fan nozzles for insecticide and fungicide applications because they:
Options:
(A) Produce smaller droplets that swirl and penetrate dense crop foliage with multi-directional coverage
(B) Have zero drift risk
(C) Operate at very low pressure below $50\text{ kPa}$
(D) Produce rectangular spray patterns
Answer Key:
A
Step-by-Step Solution & Explanation
Hollow cone nozzles create circular swirling spray sheets with fine droplets suited for multi-angle canopy leaf coverage.