Question

If the inner and outer steering angles in a tractor are 9° and 9.8° respectively then for correct steering condition the value of the ratio of pivot axis spacing to travel length is equal to ____

(a) 0.256

(b) 0.525

(c) 0.756

(d) 0.990

This question was posed to me in an interview for internship.

Question is taken from Tractor Tyre and Front Axle topic in division Farm Tractor of Farm Machinery

Answer 1

Correct choice is (b) 0.525

To elaborate: cot φ – cot θ = c/b

Cot 9 – cot 9.8 = c/b

c/b = 0.525.