Question

What is the minimum carbon content and thickness of Shoe type furrow?

(a) 0.5% and 4mm

(b) 0.5% and 2mm

(c) 0.2% and 4mm

(d) 0.8% and 8mm

I had been asked this question in final exam.

My question is based upon Sowing Equipments topic in portion Sowing Equipments of Farm Machinery

Answer 1

Correct answer is (a) 0.5% and 4mm

To elaborate: Shoe type furrow opener works well in trashy soils where the seed beds are not smoothly prepared. Shoe is made of carbon steel having minimum carbon content of 4% with a minimum thickness of 4mm.