Hydraulics and Fluid Mechanics in ME A hydraulic coupling belongs to the category of Energy transfer machines Power absorbing machines Energy generating machines Power developing machines Energy transfer machines Power absorbing machines Energy generating machines Power developing machines ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to 10000 2700 21000 2100 10000 2700 21000 2100 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In reaction turbine, draft tube is used To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section To transport water downstream without eddies For safety of turbine To increase flow rate To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section To transport water downstream without eddies For safety of turbine To increase flow rate 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 A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury? Whole of the metal piece will be immersed with its top surface just at mercury level Metal piece will sink to the bottom The metal piece will be immersed in mercury by half The metal piece will simply float over the mercury Whole of the metal piece will be immersed with its top surface just at mercury level Metal piece will sink to the bottom The metal piece will be immersed in mercury by half The metal piece will simply float over the mercury ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy’s coefficient of friction for pipe, and l = Length of pipe) d = (D⁵/8fl)1/2 d = (D⁵/8fl)1/5 d = (D⁵/8fl)1/3 d = (D⁵/8fl)1/4 d = (D⁵/8fl)1/2 d = (D⁵/8fl)1/5 d = (D⁵/8fl)1/3 d = (D⁵/8fl)1/4 ANSWER DOWNLOAD EXAMIANS APP
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