Hydraulics and Fluid Mechanics in ME Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and Vf = Velocity of flow at inlet) Q = π.D.Vf Q = π.b.Vf Q = π.D.bf.V Q = D.b.Vf Q = π.D.Vf Q = π.b.Vf Q = π.D.bf.V Q = D.b.Vf ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe) 0.423 R 0.223 R 0.707 R 0.577 R 0.423 R 0.223 R 0.707 R 0.577 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The value of coefficient of velocity for a sharp edged orifice __________ with the head of water. Remain same Increases Decreases None of these Remain same Increases Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When the Mach number is more than 6, the flow is called Hyper-sonic flow Sonic flow Super-sonic flow Sub-sonic flow Hyper-sonic flow Sonic flow Super-sonic flow Sub-sonic flow ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Differential manometer is used to measure Atmospheric pressure Very low pressure Pressure in pipes, channels etc. Difference of pressure between two points Atmospheric pressure Very low pressure Pressure in pipes, channels etc. Difference of pressure between two points ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For laminar flow in circular pipes, the Darcy’s friction factor f is equal to None of these 64/ Re 32/ Re 16/Re None of these 64/ Re 32/ Re 16/Re ANSWER DOWNLOAD EXAMIANS APP
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