Hydraulics and Fluid Mechanics in ME A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity One-half One-third Two-third Three-fourth One-half One-third Two-third Three-fourth ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be Eight times Four times Double Sixteen times Eight times Four times Double Sixteen times ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to fan laws, at constant speed and capacity, the pressure and power vary As square of density Inversely as density Inversely as square root of density Directly as the air or gas density As square of density Inversely as density Inversely as square root of density Directly as the air or gas density ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The function of guide vanes in a reaction turbine is to Allow the water to flow over them, without forming eddies Allow the required quantity of water to enter the turbine All of the listed here Allow the water to enter the runner without shock Allow the water to flow over them, without forming eddies Allow the required quantity of water to enter the turbine All of the listed here Allow the water to enter the runner without shock 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 total drag is zero lowest pressure intensity occurs at rear stagnation point highest intensity of pressure occurs around the circumference at right angles to flow lowest pressure intensity occurs at front stagnation point total drag is zero lowest pressure intensity occurs at rear stagnation point ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When the Mach number is more than 6, the flow is called Super-sonic flow Sub-sonic flow Sonic flow Hyper-sonic flow Super-sonic flow Sub-sonic flow Sonic flow Hyper-sonic flow ANSWER DOWNLOAD EXAMIANS APP
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