Question: 4.25 A rotational viscometer contains a fluid that gives a dial reading of 20 at a rotor speed of 300 rpm and a dial

4.25 A rotational viscometer contains a fluid that gives a dial reading

4.25 A rotational viscometer contains a fluid that gives a dial reading of 20 at a rotor speed of 300 rpm and a dial reading of 40 at a rotor specd of 600 rpm. a. Is the fluid in the Fann viscometer a Newto- nian fluid? Why? b. What is the apparent viscosity at 300 rpm in poise, centipoise, and Ibf-s/sq ft? Answer: 20 cp; 4.17x10-4 lbf-s/sq ft.

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