Fluid Mechanics The Prandtl mixing length is Independent of radial distance from the pipe axis Zero at the pipe wall and is a universal constant Useful for computing laminar flow problems Independent of the shear stress Independent of radial distance from the pipe axis Zero at the pipe wall and is a universal constant Useful for computing laminar flow problems Independent of the shear stress ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Scale up of agitator design requires Dynamic similarity only Geometrical similarity only All of these Both geometrical and dynamic similarity Dynamic similarity only Geometrical similarity only All of these Both geometrical and dynamic similarity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In power law, ζ = A (du/dy)² + B , then the fluid is Dilatant Rheopectic Thixotropic Newtonian Dilatant Rheopectic Thixotropic Newtonian ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Vane anemometer Rotates an element at a speed determined by the velocity of the fluid in which the meter is immersed None of these Is a variable head meter Is an area meter Rotates an element at a speed determined by the velocity of the fluid in which the meter is immersed None of these Is a variable head meter Is an area meter ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity. (II) Newton's second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary. II, III, V I, II, V I, II, III II, IV, V II, III, V I, II, V I, II, III II, IV, V ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For laminar flow through a closed conduit Vmax = 2Vav Vmax = Vav Vmax = 0.5Vav Vmax = 1.5Vav Vmax = 2Vav Vmax = Vav Vmax = 0.5Vav Vmax = 1.5Vav ANSWER DOWNLOAD EXAMIANS APP
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