Subtopic: Calculation of performance parameters – field capacity, efficiency, performance index, application rate and losses
Question Statement:
(Statement for Q.51–52 as above.)
Options:
(A) 2
(B) 17
(C) 19
(D) 36
Official Answer Key:
C
Step-by-Step Solution & Explanation
The maximum clip angle (angle of shear-cut engagement at which the crop can be sheared without excessive slip) is governed by the friction angle between the knife edge and the stem: clip angle = arctan(μ) = arctan(0.346) = 19.09° ≈ 19°, matching option (C). (The 17° given in the statement is the counter-shear's maximum oblique angle, a separate given parameter, appearing here only as the numerically identical-looking distractor option (B).)
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