Choose the correct assumption from the list below regarding viscosity O a. For liquids, both the dynamic and kinematic viscosities are practically independent of pressure. O b. For gases, dynamic viscosity is independent of pressure Oc. For gases, kinematic viscosity is dependent of pressure, O d. All assumptions are correct. The hydrostatic force acting on a submerged curved surface is: O a. All expressions are incorrect O b. Fra radical (Fv2- Fx?) O c. Fr= radical (Fu2 + (Fy W)) Od Fr= radical (Fv2 +Fx?) For a shear thinning fluid: O a. Viscosity decreases as shear stress increases. O b. Viscosity decreases as shear stress decreases. Oc. Viscosity decreases as shear stress decreases. O d. Viscosity is independent on shear stress. Which of the following is the correct relation between centroid (C) and the center of pressure (CP) of a plane surface that is horizontally submerged in a liquid? On The location of CP cannot be specified. O b. CP is at C OCCP is always blow C. Od CP is always above Specific gravity is the ratio of a fluid density to a standard reference fluid, typically water at 100 *c (for liquids) and air (for gases). Select one: True False Saturation pressure is the pressure at which a pure substance changes phase at a given temperature, Select one: O True O False Choose the correct assumption associated with a submerged object: O a. The resultant force Fr is calculated based on average pressure and it is the product of and volume of the object. O b. The point of intersection of the line of action of the resultant force and the surface is y Oc. The pressure at the centroid of a surface is equivalent to the average pressure on the surface Od In general, the line of action of the resultant force always passes through the centroid of the surface For a submerged tilted plate in a fluid reservoir, the average pressure can be expressed as: a O a. Pe-Po+pg (s+b/2)ab O b. P.-P. + pg (s+b/2) Oc. P.-P.+pg (s+b/2) coso O d. Pe=P, + pghc