Fluid Mechanics What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate? 0.5 2 1 1.5 0.5 2 1 1.5 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The unit of dynamic viscosity in SI unit is kg/m . sec m/N. sec m² /sec N/m² kg/m . sec m/N. sec m² /sec N/m² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What causes cavitation in centrifugal pump? Low barometric pressure Low suction pressure High suction velocity High suction pressure Low barometric pressure Low suction pressure High suction velocity High suction pressure ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water iterface? The balloon is of radius 0.1 m and is filled with air. 0.01πgH/8 4πg/3 0.04πgH/3 0.01πgH/4 0.01πgH/8 4πg/3 0.04πgH/3 0.01πgH/4 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Net positive suction head (NPSH) of a centrifugal pump must be Equal to the vapour pressure of the liquid Less than barometric pressure Greater than the vapour pressure of the liquid Less than the vapour pressure of the liquid Equal to the vapour pressure of the liquid Less than barometric pressure Greater than the vapour pressure of the liquid Less than the vapour pressure of the liquid ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Velocity distribution for flow between two fixed parallel plates None of these Is constant over the entire cross-section Varies parabolically across the section Is zero at the plates and increases linearly to the midplane None of these Is constant over the entire cross-section Varies parabolically across the section Is zero at the plates and increases linearly to the midplane ANSWER DOWNLOAD EXAMIANS APP
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