Subtopic: Three point hitches – free link and restrained link operations
Question Statement:
During ploughing with a tractor mounted mould board plough, the mast of three point hitch system would be
Options:
(A) inclined 5 to 20° with horizontal
(B) nearly vertical
(C) parallel to the direction of travel of the tractor
(D) parallel to the rear axle of the tractor
Official Answer Key:
B
Step-by-Step Solution & Explanation
The top-link mast of a tractor's three-point hitch, to which the top link connects, is designed to be oriented nearly vertical during normal ploughing operation so that the top link remains roughly horizontal; this geometry keeps the implement's angle of pull and depth control stable. Hence (B).
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