Question

From above figure, what is the diameter of particles with respect to ‘A'(Hint: Glass sphere)?

(a) 0.051 mm

(b) 0.074 mm

(c) 0.094 mm

(d) 0.162 mm

This question was posed to me in an interview.

Origin of the question is Entrainment at or Above the TDH-Size Distribution of Solids in section Circulation Systems of Fluidization Engineering

Answer 1

Correct answer is (a) 0.051 mm

Easy explanation: Smaller the particles size, early entrainment will take place.