Fluid Mechanics As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1 Increases linearly with V None of these Decreases as V² Decreases linearly with V Increases linearly with V None of these Decreases as V² Decreases linearly with V ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Power number is the ratio of Inertial stress to gravitational stress Drag stress to inertial stress Gravitational stress to drag stress Inertial stress to drag stress Inertial stress to gravitational stress Drag stress to inertial stress Gravitational stress to drag stress Inertial stress to drag stress ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of All of these Friction co-efficient for flows at equal Reynold number Relative roughness Absolute roughness All of these Friction co-efficient for flows at equal Reynold number Relative roughness Absolute roughness ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The Stoke's stream function applies to the Irrotational flow only Cases of axial symmetry None of these Ideal/non-viscous fluids only Irrotational flow only Cases of axial symmetry None of these Ideal/non-viscous fluids only ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Specific speed of a centrifugal pump relates it with another pump having the Geometrical similarity Same efficiency Same speed Dynamic similarity Geometrical similarity Same efficiency Same speed Dynamic similarity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The unit of dynamic viscosity in SI unit is m/N. sec kg/m . sec m² /sec N/m² m/N. sec kg/m . sec m² /sec N/m² ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS