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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is greater than the critical depth, the flow is called

Critical flow
Torrential flow
Tranquil flow
Turbulent flow

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Hydraulics and Fluid Mechanics in ME
A model of a reservior is drained in 4 mts by opening the sluice gate. The model scale is 1: 225. How long should it take to empty the prototype ?

4 x V225 minutes
4 (225)1/3 minutes
4 minutes
4 x (225)3/2 minutes

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Hydraulics and Fluid Mechanics in ME
During the opening of a valve in a pipe line, the flow is

Laminar
Uniform
Steady
Unsteady

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Hydraulics and Fluid Mechanics in ME
All the terms of energy in Bernoulli’s equation have dimension of

length
mass
energy
work

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Hydraulics and Fluid Mechanics in ME
According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

flv²/gd
3flv²/2gd
flv²/2gd
4flv²/2gd

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Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Velocity of jet to the velocity of Pelton wheel
Diameter of Pelton wheel to the diameter of jet
Diameter of jet to the diameter of Pelton wheel
Velocity of Pelton wheel to the velocity of jet

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