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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For pipes, turbulent flow occurs when Reynolds number is

less than 4000
more than 4000
between 2000 and 4000
less than 2000

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Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

None of these
Plus
Minus
Divide

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

Low surface tension
Low density
High density
High surface tension

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Hydraulics and Fluid Mechanics in ME
The specific weight of water in S.I. units is taken as

9.81 kN/m3
9.81 × 103 N/m3
9.81 × 10-6 N/mm3
Any one of these

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

Propeller turbine
Any one of the above
Francis turbine
Impulse turbine

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Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Depth of flow in an open channel
Depth of channel
Hydraulic jump
Velocity of flow in an open channel

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