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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For starting an axial flow pump, its delivery valve should be

Could be either open or closed
Depends on starting condition and flow desired
Open
Closed

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantities are same

Friction factor and diameter
Length and diameter
Flow and length
Friction loss and flow

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Hydraulics and Fluid Mechanics in ME
In impulse Turbine, energy available at the inlet is in the form of

None of these
Potential Energy
Kinetic energy
Strain Energy

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Hydraulics and Fluid Mechanics in ME
The upper surface of a weir over which water flows is known is

weir top
nappe
sill
crest

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Hydraulics and Fluid Mechanics in ME
When the Mach number is more than 6, the flow is called

Sonic flow
Super-sonic flow
Hyper-sonic flow
Sub-sonic flow

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Hydraulics and Fluid Mechanics in ME
The flow in which conditions do not change with time at any point, is known as

steady flow
one dimensional flow
uniform flow
turbulent flow

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