Hydraulics and Fluid Mechanics in ME Casting of a centrifugal pump is designed so as to minimize Cavitations Friction loss Static head Loss of kinetic energy Cavitations Friction loss Static head Loss of kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The viscosity of water is __________ than that of mercury. Lower None of these Higher Same as Lower None of these Higher Same as ANSWER DOWNLOAD EXAMIANS APP
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 R1/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The pressure at a point 4 m below the free surface of water is 29.24 kPa 39.24 kPa 19.24 kPa 49.24 kPa 29.24 kPa 39.24 kPa 19.24 kPa 49.24 kPa ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, turbulent flow occurs when Reynolds number is less than 4000 less than 2000 between 2000 and 4000 more than 4000 less than 4000 less than 2000 between 2000 and 4000 more than 4000 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface) (IG/x̅) - Ax̅ (IG/Ax̅) + x̅ (IG/Ax̅) - x̅ (Ax̅/IG) + x̅ (IG/x̅) - Ax̅ (IG/Ax̅) + x̅ (IG/Ax̅) - x̅ (Ax̅/IG) + x̅ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS