Hydraulics and Fluid Mechanics in ME The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet) (1 - sin φ)/2 (1 + cos φ)/2 (1 + sin φ)/2 (1 - cos φ)/2 (1 - sin φ)/2 (1 + cos φ)/2 (1 + sin φ)/2 (1 - cos φ)/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream May increase/decrease Keeps on increasing Keeps on decreasing Remain constant May increase/decrease Keeps on increasing Keeps on decreasing Remain constant ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called Archimedes’s principle None of these Pascal’s law D-Alembert’s principle Archimedes’s principle None of these Pascal’s law D-Alembert’s principle 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 One cubic metre of water weighs 100 liters 500 liters 250 liters 1000 liters 100 liters 500 liters 250 liters 1000 liters ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific speed of a centrifugal pump, delivering 750 liters of water per second against a head of 15 meters at 725 r.p.m., is 82.4 r.p.m. 48.2 r.p.m 24.8 r.p.m. 248 r.p.m 82.4 r.p.m. 48.2 r.p.m 24.8 r.p.m. 248 r.p.m ANSWER DOWNLOAD EXAMIANS APP
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