Fluid mechanics: Properties of fluids Please enter your mail id before submitting to get the correct answers on your mail. 1. With increase in temperature ,viscosity of a fluid Does not change Always increases Always decreases Increases , if the fluid is a gas and decreases , if its a liquid 2. The unit of Dynamic viscosity is m^2/s N.s/m^2 Pa.s/m^2 Kg.s^2/m^2 3. A perfect fluid (ideal fluid) is A real fluid The one which obeys perfect gas laws Compressive and gaseous Incompressible and frictionless 4. Which of the following velocity fields represents a possible fluid flow? u=x, v=y u=x^2, v=y^2 u=xy, v=x^2. y^2 u=x, v=-y 5. Pascal-second is the unit of Pressure Kinematic viscosty Dynamic viscosity Surface tension 6. If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5 , then the kinematic viscosity of that fluid is 0.25 0.50 1.0 2.0 7. Which of the following pressure units represents the least pressure? Millibar mm of mercury N/mm^2 kgf/cm^2 8. The increase in metacentric height Increases stability Decreases stability Increases comfort for passengers All of these 9. Newton's law of viscosity relates Intensity of pressure and rate of angular deformation Shear stress and rate of angular deformation Shear stress, viscosity and temperature Viscosity and rate of angular deformation 10. Viscosity is a property that manifests A fluid-solid boundaries only Between two adjacent -fluid layers in relative motion in uniform incompressible flows Only in turbulent flows Be sure to click Submit Quiz to see your results!Please enter your mail id to get the correct answers on your mail. (We don't misuse or display your mail id to anyone) Name Email Time's up
