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What is the size of the discs in tractor drawn disc harrows?

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in Farm Machinery by (38.9k points)
What is the size of the discs in tractor drawn disc harrows?

(a) 20-30 cm diameter

(b) 10-30 cm diameter

(c) 90-110 cm diameter

(d) 35-70 cm diameter

I got this question during an online interview.

This key question is from Harrows topic in division Harrows, Cultivators and Intercultural Implements of Farm Machinery

1 Answer

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Correct answer is (d) 35-70 cm diameter

Explanation: Disc is a circular, concave revolving steel plate used for cutting and inverting the soil. Disc is made of high grade heat treated hardened steel. Tractor drawn disc harrows have concave discs of size varying from 35 to 70 cm diameter.

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