Fluid Mechanics The velocity profile exhibited by laminar flow of Newtonion fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an __________ with the apex at the centre line of the pipe. Semi-ellipse Semi-circle Parabola Hyperbola Semi-ellipse Semi-circle Parabola Hyperbola ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The Prandtl mixing length is 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 Zero at the pipe wall and is a universal constant Useful for computing laminar flow problems ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If the head over the triangular notch is doubled, the discharge will increase by __________ times. 5.657 4 2.828 2 5.657 4 2.828 2 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the Distance between the throat and the inlet is more Length is shorter Throat diameter is more Sudden expansion of flow in the downstream occurs Distance between the throat and the inlet is more Length is shorter Throat diameter is more Sudden expansion of flow in the downstream occurs ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Plunger pumps are used for Higher pressure Slurries Viscous mass None of these Higher pressure Slurries Viscous mass None of these 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. 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 NPSH required ANSWER DOWNLOAD EXAMIANS APP
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