Allied & ICAR Exam Bank • ALLIED_0835 NAT • 2 Marks

Section 2: Farm Machinery

Farm Machinery

Subtopic: Functional requirements, principles of working, construction and operation of manual, animal, tractor and renewable energy operated equipment for tillage, sowing, planting, fertilizer application, inter-cultivation, spraying, mowing, chaff cutting, harvesting and threshing

Question Statement:

A multi-crop thresher achieves total clean grain output $G = 490\text{ kg/h}$ while unseparated grain lost in the straw and chaff is $L = 10\text{ kg/h}$. Total grain input is $G + L = 500\text{ kg/h}$. Threshing recovery efficiency $\frac{G}{G + L} \times 100$ in percent is:

Answer Key:

98

Step-by-Step Solution & Explanation

Efficiency $= (490 / 500) \times 100 = 98.0\%$.
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