Allied & ICAR Exam Bank • ALLIED_2846 MCQ • 1 Mark

Section 2: Farm Machinery

Farm Machinery

Subtopic: Forces acting on a tillage tool

Question Statement:

According to the ASABE D497 draft equation, the draft of a tillage tool increases with operating forward speed $v$ following a:

Options:

  • (A) Quadratic relationship ($D = F_1 [A + B v + C v^2] w d$)
  • (B) Linear relationship inversely proportional to $v$
  • (C) Logarithmic decay
  • (D) Constant independent of speed

Answer Key:

A

Step-by-Step Solution & Explanation

ASABE standard model uses a second-order polynomial in speed $v$ due to kinetic energy imparted to accelerated soil slices.
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