Subtopic: Hitch systems and hitching of tillage implements
Question Statement:
Raising the hitch on the implement frame of a pull type offset disk harrow without gauge wheel helps in
Options:
(A) increasing the depth of penetration for the rear gang
(B) increasing the depth of penetration for the front gang
(C) decreasing the depth of penetration for the front gang
(D) maintaining the same depth of penetration for both the gangs
Official Answer Key:
B
Step-by-Step Solution & Explanation
Raising the hitch point rotates the frame about the rear gang, transferring more of the implement's weight and pull-line downforce onto the front gang, steepening its angle of attack and increasing its penetration; the rear gang correspondingly becomes lighter-loaded. This front/rear penetration balance (with no gauge wheel to fix depth independently) is the classic hitch-height control used on offset disk harrows.
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