Question

The cutting edge should be provided with an angle of __________

(a) 45°

(b) 60°

(c) 90°

(d) 30°

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

I need to ask this question from Well Curb, Cutting Edge, Steining and Bottom Plug in portion Well Foundations of Geotechnical Engineering II

Answer 1

The correct option is (d) 30°

For explanation: The cutting edge should have as sharp an angle of 30° practicable for knifing into the soil without making it too weak to resist the various stresses induced.