Hydraulics and Fluid Mechanics in ME In reaction turbine, draft tube is used To increase flow rate To transport water downstream without eddies For safety of turbine To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section To increase flow rate To transport water downstream without eddies For safety of turbine To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is 14π R3/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, turbulent flow occurs when Reynolds number is less than 2000 less than 4000 more than 4000 between 2000 and 4000 less than 2000 less than 4000 more than 4000 between 2000 and 4000 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Any change in load is adjusted by adjusting following parameter on turbine Absolute velocity Flow Net head Blade velocity Absolute velocity Flow Net head Blade velocity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be Double Eight times Sixteen times Four times Double Eight times Sixteen times Four times ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The horizontal component of buoyant force is None of these Same as buoyant force Negligible Zero None of these Same as buoyant force Negligible Zero ANSWER DOWNLOAD EXAMIANS APP
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