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Statement 1: In μ_a= τ/γ = Kγ^(n-1) , n = consistency index and K is the flow behaviour index.

Statement 2: n= 1 for Newtonian fluids, n<1 for dilatant fluids and n>1 for pseudo plastic fluids.

(a) True, False

(b) True, True

(c) False, False

(d) False, True

This question was addressed to me during an interview for a job.

The question is from Unit Operations in portion Food Processing Techniques, Fluid Mechanics and Rheology of Foods of Food Engineering

1 Answer

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Best answer
Right choice is (c) False, False

Easiest explanation: Both the statements are false. K = consistency index and n is the flow behaviour index.  n is greater than 1 for dilatant fluids and n is less than 1 for pseudo plastic fluids.

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