The GATE Grind

GATE 2023 AG – Question 15

Farm Machinery · Farm Machinery · 1 mark · Multiple choice

Rotary-tiller total tillage energy decreases when

  1. Bite length increases
  2. Bite length decreases
  3. Soil cone index increases
  4. Machine forward speed decreases

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Show answer and explanation

Correct answer: (A) Bite length increases

Explanation

A larger bite generally reduces the number of blade engagements and repeated pulverization per unit advance, lowering specific tillage energy in the intended operating comparison. Harder soil or smaller bites increases the energy burden. The keyed choice is **A**; this describes the normal comparative trend within an appropriate working range.

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