Hydraulics and Fluid Mechanics in ME The runaway speed of a hydraulic turbine is the speed Corresponding to maximum overload permissible At which there will be no damage to the runner At which the turbine will run freely without load At full load Corresponding to maximum overload permissible At which there will be no damage to the runner At which the turbine will run freely without load At full load ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When an ideal fluid flows past a sphere highest intensity of pressure occurs around the circumference at right angles to flow lowest pressure intensity occurs at front stagnation point lowest pressure intensity occurs at rear stagnation point total drag is zero highest intensity of pressure occurs around the circumference at right angles to flow lowest pressure intensity occurs at front stagnation point lowest pressure intensity occurs at rear stagnation point total drag is zero ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Coefficient of contraction is the ratio of Loss of head in the orifice to the head of water available at the exit of the orifice Area of jet at vena-contracta to the area of orifice Actual velocity of jet at vena contracta to the theoretical velocity Loss of head in the orifice to the head of water available at the exit of the orifice Loss of head in the orifice to the head of water available at the exit of the orifice Area of jet at vena-contracta to the area of orifice Actual velocity of jet at vena contracta to the theoretical velocity Loss of head in the orifice to the head of water available at the exit of the orifice ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The overall efficiency of a reaction turbine is the ratio of None of these Work-done on the wheel to the energy (or head of water) actually supplied to the turbine 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 None of these Work-done on the wheel to the energy (or head of water) actually supplied to the turbine 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 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following is an incorrect statement ? Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined Flow nozzle is cheaper than venturimeter but has higher energy loss Coefficient of contraction of a venturimeter is unity None of these Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined Flow nozzle is cheaper than venturimeter but has higher energy loss Coefficient of contraction of a venturimeter is unity None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice) Q = (3Cd × a)/√(2h) Q = (Cd × a)/√(2gh) Q = (2/3). Cd × a × h Q = Cd × a × 2gh Q = (3Cd × a)/√(2h) Q = (Cd × a)/√(2gh) Q = (2/3). Cd × a × h Q = Cd × a × 2gh ANSWER DOWNLOAD EXAMIANS APP
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