Hydraulics and Fluid Mechanics in ME The normal stress in a fluid will be constant in all directions at a point only if It has zero viscosity It is incompressible It has uniform viscosity It is at rest It has zero viscosity It is incompressible It has uniform viscosity It is at rest ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ? 0.515 0.5 0.5 0.4 0.515 0.5 0.5 0.4 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge over a right angled notch is (where H = Height of liquid above the apex of notch) (8/15) Cd. 2g. H (8/15) Cd. 2g. H5/2 (8/15) Cd. 2g. H3/2 (8/15) Cd. 2g. H² (8/15) Cd. 2g. H (8/15) Cd. 2g. H5/2 (8/15) Cd. 2g. H3/2 (8/15) Cd. 2g. H² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal ratio of inertial force to force due to surface tension ratio of inertial force to force due to gravitation ratio of inertial force to force due to viscosity all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity ratio of inertial force to force due to surface tension ratio of inertial force to force due to gravitation ratio of inertial force to force due to viscosity all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar) 0.05 cm 0.10 cm 0.40 cm 0.20 cm 0.05 cm 0.10 cm 0.40 cm 0.20 cm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Pascal-second is the unit of pressure kinematic viscosity dynamic viscosity surface tension pressure kinematic viscosity dynamic viscosity surface tension ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS