Fluid Flow

Question: The viscosity of liquid was classified as both dilatant and rheopectic, which means that the viscosity [A]. increased with stirring speed but decreased with mixing time [B]. increased with stirring speed and increased with mixing time [C]. decreased with stirring speed but increased with mixing time [D]. decreased with stirring speed and decreased with…

Question: The viscosity of the culture fluid is classified as both pseudoplastic and thixotropic which indicates that the viscosity [A]. increases with stirring speed but decreases with mixing time [B]. increases with stirring speed and increases with mixing time [C]. decreases with stirring speed but increases with mixing time [D]. decreases with stirring speed and…

Question: The medium will have the highest viscosity (considering that the cells do not secrete gums) with the presence of [A]. single celled bacteria [B]. filamentous fungi that form pellets [C]. filamentous fungi that grow as long poorly branched chains [D]. yeast Answer: Option C Explanation: No answer description available for this question.

Question: Which of the following compound, if added to a solution will lead to the greatest increase in viscosity? [A]. A globular protein [B]. Glucose [C]. A long chain protein such as albumin [D]. Water Answer: Option C Explanation: No answer description available for this question.

Question: The viscosity of water at STP is approximately [A]. 0.005 kg.m-1.s-1 [B]. 0.001 kg.m-1.s-1 [C]. 0.003 kg.m-2.s-1 [D]. 0.1 g.cm-1.s-1 Answer: Option B Explanation: No answer description available for this question.

Question: Water is a [A]. newtonian fluid [B]. pseudoplastic [C]. dilatant [D]. rheopectic Answer: Option A Explanation: No answer description available for this question.

Question: The viscosity of a fluid changes with either stirrer speed or mixing time. But when mixing ceases, the viscosity returns to its original state. This fluid is best described as [A]. newtonian [B]. rheopectic [C]. viscoelastic [D]. thixotropic Answer: Option C Explanation: No answer description available for this question.

Question: If the viscosity of a fluid decreases with the length of time that it is being mixed, then this fluid is [A]. newtonian [B]. rheopectic [C]. viscoelastic [D]. thixotropic Answer: Option D Explanation: No answer description available for this question.

Question: If the viscosity of a fluid decreases with increasing stirrer speed, then the nature of the fluid is [A]. newtonian [B]. pseudoplastic [C]. dilatant [D]. thixotropic Answer: Option B Explanation: No answer description available for this question.

Question: The SI unit for viscosity is [A]. kg.m-1.s-1 [B]. kg.m-2.s-2 [C]. kg.m-3.s-1 [D]. kg.m-1.s-2 Answer: Option A Explanation: No answer description available for this question.