Fluid Mechanics What causes cavitation in centrifugal pump? Low barometric pressure High suction pressure Low suction pressure High suction velocity Low barometric pressure High suction pressure Low suction pressure High suction velocity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double Efficiency Discharge None of these Head Efficiency Discharge None of these Head ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is 1 2 < 1 > 1 1 2 < 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is HB/(H + B) 2HB/(H + B) HB/2(H + B) 4HB/(H + B) HB/(H + B) 2HB/(H + B) HB/2(H + B) 4HB/(H + B) ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The Stoke's stream function applies to the Cases of axial symmetry Ideal/non-viscous fluids only Irrotational flow only None of these Cases of axial symmetry Ideal/non-viscous fluids only Irrotational flow only None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is < Δp Δp Δp² > Δp < Δp Δp Δp² > Δp ANSWER DOWNLOAD EXAMIANS APP