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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

Same as
More than
None of these
Less than

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Hydraulics and Fluid Mechanics in ME
The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy’s coefficient of friction for pipe, and l = Length of pipe)

d = (D⁵/8fl)1/4
d = (D⁵/8fl)1/5
d = (D⁵/8fl)1/2
d = (D⁵/8fl)1/3

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Hydraulics and Fluid Mechanics in ME
Differential monometer is used to measure

difference of pressure between two points
pressure in pipes, channels etc
atmospheric pressure
very low pressure

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Hydraulics and Fluid Mechanics in ME
The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called

Surface tension
Viscosity
Compressibility
Capillarity

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Hydraulics and Fluid Mechanics in ME
Medium specific speed of turbine implies it is

Francis turbine
Any one of the above
Propeller turbine
Impulse turbine

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Hydraulics and Fluid Mechanics in ME
The value of bulk modulus of a fluid is required to determine

Euler's number
Reynold's number
Mach number
Froude's number

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