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A Newtonian fluid is defined as the fluid which?(a) Obeys hook’s law(b) Is compressible(c) Obey Newton’s law of viscosity(d) Is incompressibleThis question was addressed to me in an interview for job.My question comes from Definition and Basic in chapter Rheology of Dairy Engineering

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Right ANSWER is (c) Obey Newton’s law of viscosity

Best explanation: NEWTONIAN fluid is defined as the fluid which obeys Newton’s law of viscosity for a Newtonian fluid. The viscosity curve, which is a plot of viscosity versus shear rate, will show a straight line at a CONSTANT value equal to H.



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