Hydraulics and Fluid Mechanics in ME For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is a function of Reynolds number and relative roughness dependent on relative roughness only constant dependent only on Reynolds number a function of Reynolds number and relative roughness dependent on relative roughness only constant dependent only on Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The maximum thickness of boundary layer in a pipe of radius r is r r/2 2r r r/2 2r ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Dynamic similarity is said to exist between the model and the prototype, if both of them None of these Are identical in shape, but differ only in size Are equal in size and shape Have identical velocities None of these Are identical in shape, but differ only in size Are equal in size and shape Have identical velocities ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which place in hydraulic turbine is most susceptible for cavitations? Blade inlet Inlet of draft rube Guide blade Penstock Blade inlet Inlet of draft rube Guide blade Penstock ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Mach number is significant in full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc supersonics, as with projectiles and jet propulsion simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls all of fhe above full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc supersonics, as with projectiles and jet propulsion simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls all of fhe above ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water would discharge Same quantity of liquid Q/0.75 1.5 Q 0.75 Q Same quantity of liquid Q/0.75 1.5 Q 0.75 Q ANSWER DOWNLOAD EXAMIANS APP
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