Hydraulics and Fluid Mechanics in ME The overall efficiency for a Pelton wheel lies between 0.85 to 0.90 0.65 to 0.75 0.75 to 0.85 0.50 to 0.65 0.85 to 0.90 0.65 to 0.75 0.75 to 0.85 0.50 to 0.65 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 (Ax̅/IG) + x̅ (IG/Ax̅) - x̅ (IG/x̅) - Ax̅ (IG/Ax̅) + x̅ (Ax̅/IG) + x̅ (IG/Ax̅) - x̅ ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called Bernoulli’s equation Continuity equation Archimedes’s principle Pascal’s law Bernoulli’s equation Continuity equation Archimedes’s principle Pascal’s law ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The weight per unit volume of a liquid at a standard temperature and pressure is called Specific gravity Mass density Specific weight None of these Specific gravity Mass density Specific weight None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The dynamic viscosity of gases __________ with rise in temperature. None of these Increases Decreases Remain unaffected None of these Increases Decreases Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Casting of a centrifugal pump is designed so as to minimize Static head Friction loss Loss of kinetic energy Cavitations Static head Friction loss Loss of kinetic energy Cavitations ANSWER DOWNLOAD EXAMIANS APP
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