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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
The value of mass density in kg-sec-V-m⁴ for water at 0°C is

1000
100.9
1
101.9

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Hydraulics and Fluid Mechanics in ME
The hydraulic grade line is

never above the energy grade line
always above the centre line of pipe
All of these
always sloping downward in the direction of flow

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Hydraulics and Fluid Mechanics in ME
With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will

Remain unchanged
Decrease
Depend upon the characteristics of liquid
Increase

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Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

10000
2700
2100
21000

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Hydraulics and Fluid Mechanics in ME
Barometer is used to measure

Very low pressure
Pressure in pipes, channels etc.
Difference of pressure between two points
Atmospheric pressure

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