Fluid Mechanics A stream line is A line connecting the mid points of flow cross-section Always the path of particle Drawn normal to the velocity vector at every point Fixed in space in steady flow A line connecting the mid points of flow cross-section Always the path of particle Drawn normal to the velocity vector at every point Fixed in space in steady flow ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases. All of these Head of the liquid pumped BHP required by the pump NPSH required All of these Head of the liquid pumped BHP required by the pump NPSH required ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics With the increase in depth, the hydrostatic pressure in an unaccelerated incompressible fluid (in a constant gravitational field) Remains constant Decreases Increases linearly Increases exponentially Remains constant Decreases Increases linearly Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following is not a dimension-less parameter? Specific gravity Fanning friction factor Euler number None of these Specific gravity Fanning friction factor Euler number None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Net positive suction head (NPSH) of a centrifugal pump must be 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 Equal to the vapour pressure of the liquid Less than barometric pressure Greater than the vapour pressure of the liquid ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Momentum transfer in laminar flow of fluids results due to the Viscosity None of these Velocity gradient Density Viscosity None of these Velocity gradient Density ANSWER DOWNLOAD EXAMIANS APP
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