Question

While designing a seed drill, the normal width of a seed drill (W) is based on the number of furrow openers (N) and spacing between furrows (S). The correct relationship is:

• A. \( W = \frac{N}{S} \)
• B. \( W = N \times S \)
• C. \( W = \frac{S}{N} \)
• D. \( S = \frac{W}{N} \)

Hint:

To calculate the width of a seed drill, multiply the number of furrow openers by their spacing.

Answer 1

The Correct Option is B

Step 1: Understanding the working of a seed drill
A seed drill is used for sowing seeds at a uniform depth and spacing. It consists of multiple furrow openers that place seeds in rows.
Step 2: Deriving the relationship
The total working width (\(W\)) of a seed drill depends on: - The number of furrow openers (\(N\)) - The spacing between furrows (\(S\)) Mathematically, the width of the seed drill is given by: \[ W = N \times S \]
Step 3: Eliminating incorrect options
- \( W = \frac{N}{S} \) is incorrect because division does not represent total width. - \( W = \frac{S}{N} \) is incorrect for the same reason. - \( S = \frac{W}{N} \) is rearranged correctly but does not directly answer the question.