Hydraulics and Fluid Mechanics in ME The flow ratio in case of Francis turbine varies from 1 to 1.5 0.15 to 0.3 0.4 to 0.5 0.6 to 0.9 1 to 1.5 0.15 to 0.3 0.4 to 0.5 0.6 to 0.9 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In order to avoid cavitation in centrifugal pumps The suction pressure should be high The delivery pressure should be low The suction pressure should be low The delivery pressure should be high The suction pressure should be high The delivery pressure should be low The suction pressure should be low The delivery pressure should be high ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is ρ ω2 r2/2 ρ ω2 r2 2ρ ω2 r2 ρ ω2 r2/4 ρ ω2 r2/2 ρ ω2 r2 2ρ ω2 r2 ρ ω2 r2/4 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is (ii) and (iii) (i) and (iv) (ii) and (iv) (i) and (iii) (ii) and (iii) (i) and (iv) (ii) and (iv) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A double overhung Pelton wheel has Two jets Two runners Four runners Four jets Two jets Two runners Four runners Four jets ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Mach number is significant in full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc all of fhe above simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls supersonics, as with projectiles and jet propulsion full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc all of fhe above simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls supersonics, as with projectiles and jet propulsion ANSWER DOWNLOAD EXAMIANS APP
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