Specific speed for a centrifugal pump is___________________?
Specific speed for a centrifugal pump is___________________?
A. N √Q/H3/4
B. N √Q/H2/3
C. N3D5/H1/3
D. N √Q/H
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Potential flow is the flow of______________?
Potential flow is the flow of______________?A. Compressible fluids with shear
B. Compressible fluids with no shear
C. Incompressible fluids with shear
D. Incompressible fluids with no shearAn equipotential line is _____________ to the velocity vector at every point?
An equipotential line is _____________ to the velocity vector at every point?A. Normal
B. Parallel
C. Tangential
D. None of theseWith increase in the ratio of orifice diameter to pipe diameter, the fraction of the orifice pressure differential that is permanently lost________________?
With increase in the ratio of orifice diameter to pipe diameter, the fraction of the orifice pressure differential that is permanently lost________________?A. Increases
B. Decreases
C. Remains unchanged
D. Increases exponentiallyThe temperature in isentropic flow_______________?
The temperature in isentropic flow_______________?A. Does not depend on Mach number
B. Depends on Mach number only
C. Cannot drop and then increase again downstream
D. None of theseA centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the power consumed now will be _____________ hp?
A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the power consumed now will be _____________ hp?A. 0.5
B. 2
C. 4
D. 1Froude number is the ratio of__________________?
Froude number is the ratio of__________________?A. Shear stress to gravitational stress
B. Drag stress to shear stress
C. Inertial stress to shear stress
D. Inertial stress to gravitational stress