Hydraulics and Fluid Mechanics in ME The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta) 2g × √H 2gH H × √(2g) √(2gh) 2g × √H 2gH H × √(2g) √(2gh) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is 0.26 0.56 0.46 0.36 0.26 0.56 0.46 0.36 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by Some other alterations in the impeller Trimming the impeller size to the required size by machining Not possible Designing new impeller Some other alterations in the impeller Trimming the impeller size to the required size by machining Not possible Designing new impeller ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The unit discharge through the turbine is Q/H Q/H² Q/H3/2 Q/√H Q/H Q/H² Q/H3/2 Q/√H ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In axial flow fans and turbines, fluid enters and leaves as follows Axially, radially Radially, radially Radially, axially Axially, axially Axially, radially Radially, radially Radially, axially Axially, axially ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will Remain unchanged Decrease Depend upon the characteristics of liquid Increase Remain unchanged Decrease Depend upon the characteristics of liquid Increase ANSWER DOWNLOAD EXAMIANS APP
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