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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

2
1
43924

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Hydraulics and Fluid Mechanics in ME
In axial flow fans and turbines, fluid enters and leaves as follows

Radially, axially
Axially, axially
Axially, radially
Radially, radially

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Hydraulics and Fluid Mechanics in ME
The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice)

Q = (3Cd × a)/√(2h)
Q = Cd × a × 2gh
Q = (Cd × a)/√(2gh)
Q = (2/3). Cd × a × h

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Hydraulics and Fluid Mechanics in ME
In a Francis turbine runner, the numbers of blades are generally between

16 to 24
8 to 16
2 to 4
4 to 8

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Hydraulics and Fluid Mechanics in ME
A balloon lifting in air follows the following principle

All of these
law of gravitation
principle of buoyancy
Archimedes principle

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Hydraulics and Fluid Mechanics in ME
The weight per unit volume of a liquid at a standard temperature and pressure is called

Specific weight
None of these
Mass density
Specific gravity

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