Hydraulics and Fluid Mechanics in ME A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is 14π R3/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 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 0.20 cm 0.10 cm 0.40 cm 0.05 cm 0.20 cm 0.10 cm 0.40 cm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is dependent on relative roughness only a function of Reynolds number and relative roughness dependent only on Reynolds number constant dependent on relative roughness only a function of Reynolds number and relative roughness dependent only on Reynolds number constant ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The force exerted by a jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is (waV/g) × sin θ (waV²/g) × sin θ (waV²/2g) × sin 2θ (waV/2g) × sin θ (waV/g) × sin θ (waV²/g) × sin θ (waV²/2g) × sin 2θ (waV/2g) × sin θ ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Density of water is maximum at 100°C 4°C 0°C 0°K 100°C 4°C 0°C 0°K ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In order to avoid cavitation in centrifugal pumps The delivery pressure should be high The suction pressure should be low The delivery pressure should be low The suction pressure should be high The delivery pressure should be high The suction pressure should be low The delivery pressure should be low The suction pressure should be high ANSWER DOWNLOAD EXAMIANS APP
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