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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2g) × H5/2
Cd × a × √(2gH)
Cd × a × √(2g) × H2
Cd × a × √(2g) × H3/2

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Hydraulics and Fluid Mechanics in ME
A channel is said to be of most economical cross-section, if

It gives maximum discharge for a given cross-sectional area and bed slope
It has minimum wetted perimeter
It involves lesser excavation for the designed amount of discharge
All of these

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Hydraulics and Fluid Mechanics in ME
The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)

(H - hf )/H
H/(H + hf )
(H + hf )/H
H/(H - hf )

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

One-dimensional flow
Three-dimensional flow
Four-dimensional flow
Two-dimensional flow

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Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 5
(D/2d) + 15
(D/2d) + 10
(D/2d) + 20

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Hydraulics and Fluid Mechanics in ME
The undershot water wheels are those in which

The wheel runs entirely by the impulse of water
The wheel runs entirely by the weight of water
The wheel runs partly by the weight of water and partly by the impulse of water
None of these

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