Hydraulics and Fluid Mechanics in ME In a reaction turbine, the draft tube is used To run the turbine full To increase the head of water by an amount equal to the height of the runner outlet above the tail race To transport water to downstream To prevent air to enter the turbine To run the turbine full To increase the head of water by an amount equal to the height of the runner outlet above the tail race To transport water to downstream To prevent air to enter the turbine ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is Directly proportional to (radius)4 Directly proportional to (radius)2 Inversely proportional to (radius)2 Inversely proportional to (radius)4 Directly proportional to (radius)4 Directly proportional to (radius)2 Inversely proportional to (radius)2 Inversely proportional to (radius)4 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 r2/4 2ρ ω2 r2 ρ ω2 r2 ρ ω2 r2/2 ρ ω2 r2/4 2ρ ω2 r2 ρ ω2 r2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The length of a liquid stream while flowing over a weir __________ at the ends of the sill. None of these Contracts Does not change Expands None of these Contracts Does not change Expands ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The centre of pressure acts __________ the centre of gravity of immersed surface. Above None of these At Below Above None of these At Below ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal ratio of inertial force to force due to viscosity all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity ratio of inertial force to force due to surface tension ratio of inertial force to force due to gravitation ratio of inertial force to force due to viscosity all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity ratio of inertial force to force due to surface tension ratio of inertial force to force due to gravitation ANSWER DOWNLOAD EXAMIANS APP
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