Question

Statement 1: Froude number relates the gravitational effect which is important when the liquid is agitated by an impeller.

Statement 2: When NRe,i < 300, NFr is ineffective.

(a) True, False

(b) True, True

(c) False, False

(d) False, True

The question was posed to me in unit test.

I want to ask this question from Unit Operations in portion Sedimentation and Centrifuge, Mixing, Size Reduction and Separation and Material Handling and Transportation of Food Engineering

Answer 1

Right answer is (b) True, True

To elaborate: Froude number relates the gravitational effect which is important when the liquid is agitated by an impeller. When NRe,i < 300, NFr is ineffective.