Hydraulics & Fluid Mechanics In which of the following the friction drag is generally larger than pressure drag? a circular disc or plate held normal to flow a cylinder an airfoil a sphere a circular disc or plate held normal to flow a cylinder an airfoil a sphere ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics When a body floating in a liquid, is displaced slightly, it oscillates about center of pressure center of buoyancy metacentre e.g. of body center of pressure center of buoyancy metacentre e.g. of body ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The discharge through a V- notch varies as H3’2 H1/2 H5/2 H5’4 where H is head. H3’2 H1/2 H5/2 H5’4 where H is head. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid (where pi and p2 are mass densities.) frictionless flow steady flow uniform flow incompressible flow frictionless flow steady flow uniform flow incompressible flow ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Free surface of a liquid tends to contract to the smallest possible area due to force of friction viscosity cohesion surface tension friction viscosity cohesion surface tension ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is (where R is the radius of pipe) 1/3 R 1/2 R 2/3 R 3/4 R 1/3 R 1/2 R 2/3 R 3/4 R ANSWER DOWNLOAD EXAMIANS APP
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