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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The liquid used in manometers should have

High surface tension
High density
Low density
Low surface tension

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Hydraulics and Fluid Mechanics in ME
A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

0.46
0.87
0.78
0.64

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Hydraulics and Fluid Mechanics in ME
The pressure of a liquid measured with the help of a Piezometer tube is

Gauge pressure
Absolute pressure
Vacuum pressure
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

velocity of fluid
rotation
absolute pressure
flow

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Hydraulics and Fluid Mechanics in ME
When the flow parameters at any given instant remain same at every point, then flow is said to be

laminar
steady state
uniform
quasi static

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Hydraulics and Fluid Mechanics in ME
The value of friction factor ‘f’ for smooth pipes for Reynolds number 106 is approximately equal to

0.001
0.1
0.0001
0.01

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