Hydraulics and Fluid Mechanics in ME For a body floating in a liquid the normal pressure exerted by the liquid acts at all points on the surface of the body bottom surface of the body e.g. of the body metacentre all points on the surface of the body bottom surface of the body e.g. of the body metacentre ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by H = Hg/hf H = Hg - hf H = Hg × hf H = Hg + hf H = Hg/hf H = Hg - hf H = Hg × hf H = Hg + hf ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Casting of a centrifugal pump is designed so as to minimize Friction loss Cavitations Loss of kinetic energy Static head Friction loss Cavitations Loss of kinetic energy Static head ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The overall efficiency of a reaction turbine is the ratio of Actual work available at the turbine to the energy imparted to the wheel Work-done on the wheel to the energy (or head of water) actually supplied to the turbine None of these Power produced by the turbine to the energy actually supplied by the turbine Actual work available at the turbine to the energy imparted to the wheel Work-done on the wheel to the energy (or head of water) actually supplied to the turbine None of these Power produced by the turbine to the energy actually supplied by the turbine ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface) w h/w wh w/h w h/w wh w/h ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ? 0.4 0.5 0.515 0.5 0.4 0.5 0.515 0.5 ANSWER DOWNLOAD EXAMIANS APP
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