Question

Calculate the coefficient of friction if the angle of inclination is 60°.

(a) 2.73

(b) 1.73

(c) 2.48

(d) 1.41

This question was addressed to me during an interview.

Asked question is from Nature of Traction Load topic in portion Traction Drives of Electric Drives

Answer 1

Right answer is (b) 1.73

To elaborate: The coefficient of friction is the tangent of the angle of the inclined plane. The value of μ is the tan(60°)=1.73. The coefficient of friction depends on the nature of the surface.