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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 quantites are same

friction loss and flow
flow and length
friction factor and diameter
length and diameter

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Hydraulics and Fluid Mechanics in ME
The force present in a moving liquid is

Viscous force
All of these
Inertia force
Gravity force

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Hydraulics and Fluid Mechanics in ME
The overall efficiency for a Pelton wheel lies between

0.50 to 0.65
0.65 to 0.75
0.75 to 0.85
0.85 to 0.90

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Hydraulics and Fluid Mechanics in ME
When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

0.855 a. √2gH
0.5 a. √2gH
√2gH
0.707 a. √2gH

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Hydraulics and Fluid Mechanics in ME
According to Manning's formula, the discharge through an open channel is (where M = Manning's constant)

A1/2 × M2/3 × m × i
A × M × m1/2 × i2/3
A × M × m2/3 × i1/2
A2/3 × M1/3 × m × i

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

momentum
mass
work
energy

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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