Hydraulics and Fluid Mechanics in ME The viscosity of water at 20°C is One centistoke One stoke One centipoise One poise One centistoke One stoke One centipoise One poise ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar) 0.05 cm 0.40 cm 0.10 cm 0.20 cm 0.05 cm 0.40 cm 0.10 cm 0.20 cm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe) 0.75v²/2g 0.5v²/2g 0.375v²/2g v²/2g 0.75v²/2g 0.5v²/2g 0.375v²/2g v²/2g 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 , the horse power required will be 0.75 B.H.P 1.5 B.H.P Same H.P./0.75 0.75 B.H.P 1.5 B.H.P Same H.P./0.75 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A pressure of 25 m of head of water is equal to 245 kN/m2 2.5 kN/m2 25 kN/m2 2500 kN/m2 245 kN/m2 2.5 kN/m2 25 kN/m2 2500 kN/m2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow) 0.223 D 0.423 D 0.577 D 0.707 D 0.223 D 0.423 D 0.577 D 0.707 D ANSWER DOWNLOAD EXAMIANS APP
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