Question Bank • QB_EXP_FM_SOW_001 MCQ • 1 Mark

Section 2: Farm Machinery

Metering Mechanisms & Calibration of Seed Drills

Subtopic: Drive wheel and transmission

Question Statement:

A $9\text{-row}$ tractor-drawn seed drill has a row-to-row spacing of $20\text{ cm}$. The effective working width of the seed drill is:

Options:

  • (A) $1.80\text{ m}$
  • (B) $2.00\text{ m}$
  • (C) $1.60\text{ m}$
  • (D) $2.70\text{ m}$

Answer Key:

A

Step-by-Step Solution & Explanation

The effective working width $W$ of a seed drill is the product of number of furrow openers ($n$) and the spacing between consecutive rows ($s$): $W = n \times s = 9 \times 20\text{ cm} = 180\text{ cm} = 1.80\text{ m}$ Hence, the working width is $1.80\text{ m}$.
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