Allied & ICAR Exam Bank • ALLIED_0815NAT • 2 Marks
Section 2: Farm Machinery
Farm Machinery
Subtopic: Calculation of performance parameters – field capacity, efficiency, performance index, application rate and losses
Question Statement:
A seed drill metering roller has effective exposed fluted length $L = 30\text{ mm}$ when calibrated for $100\text{ kg/ha}$. If the exposed length is linearly increased to $L = 45\text{ mm}$, the new calibrated seed rate in $\text{kg/ha}$ is:
Answer Key:
150
Step-by-Step Solution & Explanation
Seed rate varies linearly with active fluted roller length: Rate $= 100 \times (45 / 30) = 150.0\text{ kg/ha}$.