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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the bucket for a Pelton wheel is generally _________ the diameter of jet.

1.8 times
1.2 times
Double
Equal to

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Compressibility of the liquid
Pressure with which the liquid is displaced
Viscosity of the liquid
Weight of the liquid displaced

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

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

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

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

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Hydraulics and Fluid Mechanics in ME
The discharge in an open channel corresponding to critical depth is

Zero
Maximum
None of these
Minimum

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Hydraulics and Fluid Mechanics in ME
Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by

0.1
0.15
0.05
0.2

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