Allied & ICAR Exam Bank • ALLIED_0213 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 cylinder-type forage harvester has 6 knives and rotates at $900\text{ rpm}$. Feed roll advance speed is $0.9\text{ m/s}$. Theoretical length of cut (TLC) in mm is:

Answer Key:

10

Step-by-Step Solution & Explanation

Cuts per sec $= (6 \times 900)/60 = 90\text{ cuts/s}$. Advance $= 900\text{ mm/s}$. $TLC = 900 / 90 = 10.0\text{ mm}$.
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