Allied & ICAR Exam Bank • ALLIED_1063 NAT • 2 Marks

Section 2: Farm Machinery

Farm Machinery

Subtopic: Field Capacity and Efficiency

Question Statement:

A disc harrow with an operating width of 2.4 m is operated at 5.0 km/h. If the field efficiency of the harrowing operation is 75%, the effective field capacity in ha/h is:

Answer Key:

0.90

Step-by-Step Solution & Explanation

Theoretical field capacity $TFC = \frac{W \times S}{10} = \frac{2.4 \times 5.0}{10} = 1.20\text{ ha/h}$. Effective field capacity $EFC = TFC \times \eta = 1.20 \times 0.75 = 0.90\text{ ha/h}$.
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