Question

What is the disc angle of a good plough?

(a) 35°-39°

(b) 42°-45°

(c) 23°-27°

(d) 59°-63°

The question was posed to me by my school teacher while I was bunking the class.

This interesting question is from Tillage System topic in section Tillage, Disc Plough & Numericals of Farm Machinery

Answer 1

The correct answer is (b) 42°-45°

To explain: Disc angle is the angle at which the plane of the cutting edge of the disc is inclined to the direction of travel. Usually, the disc angle of good plough varies between 42° to 45°.