Fluid Mechanics The Prandtl mixing length is Zero at the pipe wall and is a universal constant Useful for computing laminar flow problems Independent of radial distance from the pipe axis Independent of the shear stress Zero at the pipe wall and is a universal constant Useful for computing laminar flow problems Independent of radial distance from the pipe axis Independent of the shear stress ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Scale up of agitator design requires Dynamic similarity only Geometrical similarity only Both geometrical and dynamic similarity All of these Dynamic similarity only Geometrical similarity only Both geometrical and dynamic similarity All of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics With increase in molecular weight of the gas, the head developed by a centrifugal compressor will Decrease Unpredictable Remain same Increase Decrease Unpredictable Remain same Increase ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The terminal velocity of a small sphere settling in a viscous fluid varies as the Square of the difference in specific weights of solid & fluid Inverse square of the diameter Inverse of the fluid viscosity First power of its dimeter Square of the difference in specific weights of solid & fluid Inverse square of the diameter Inverse of the fluid viscosity First power of its dimeter ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics While starting a centrifugal pump, its delivery valve should be kept Closed Either opened or closed; depending on the fluid viscosity Opened Either opened or closed ; it does not make any difference Closed Either opened or closed; depending on the fluid viscosity Opened Either opened or closed ; it does not make any difference 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. NPSH required BHP required by the pump All of these Head of the liquid pumped NPSH required BHP required by the pump All of these Head of the liquid pumped ANSWER DOWNLOAD EXAMIANS APP
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