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 pressure relief / regulator valve on an agricultural sprayer functions to:
Options:
(A) Maintain constant operating pressure and bypass excess pump discharge back to the tank for hydraulic agitation
(B) Increase engine rpm
(C) Measure spray droplet size
(D) Atomize air into water
Answer Key:
A
Step-by-Step Solution & Explanation
The relief valve maintains set line pressure and channels overflow back to the tank to agitate wettable chemical powders.