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:
In a horizontal disc paddy transplanter, the mechanism used to separate seedling mats and insert them into the puddled soil is a:
Options:
(A) Fluted roller feed cup
(B) Four-bar linkage transplanting arm with fixed fork
(C) Centrifugal rotary impeller
(D) Pneumatic vacuum cup
Answer Key:
B
Step-by-Step Solution & Explanation
Mechanical rice transplanters utilize a four-bar linkage mechanism that drives a transplanting arm with a finger fork. The fork moves along an oval/kidney-shaped path to grab seedlings from the seedling tray and push them into the puddle at the lowest point of stroke.