Hydraulics and Fluid Mechanics in ME A channel is said to be of most economical cross-section, if It involves lesser excavation for the designed amount of discharge It gives maximum discharge for a given cross-sectional area and bed slope It has minimum wetted perimeter All of these It involves lesser excavation for the designed amount of discharge It gives maximum discharge for a given cross-sectional area and bed slope It has minimum wetted perimeter All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a centrifugal pump, the liquid enters the pump At the top At the bottom At the canter From sides At the top At the bottom At the canter From sides ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If velocity is zero over l/3rd of a cross-section and is uniform over remaining 2/3rd of the cross-section, then the correction factor for kinetic energy is 44078 43924 43892 27/8 44078 43924 43892 27/8 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe) 4flv²/2gd flv²/gd 3flv²/2gd flv²/2gd 4flv²/2gd flv²/gd 3flv²/2gd flv²/2gd ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The dynamic viscosity of gases __________ with rise in temperature. Increases Remain unaffected Decreases None of these Increases Remain unaffected Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If the net positive suction head (NPSH) requirement for the pump is not satisfied, then Efficiency will be low Cavitation will be formed No flow will take place Excessive power will be consumed Efficiency will be low Cavitation will be formed No flow will take place Excessive power will be consumed ANSWER DOWNLOAD EXAMIANS APP
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