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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.67 times
0.34 times
0.81 times
0.95 times

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Hydraulics and Fluid Mechanics in ME
The discharge over a triangular notch is

Directly proportional to H5/2
Inversely proportional to H3/2
Inversely proportional to H5/2
Directly proportional to H3/2

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

0.492
0.848
0.688
0.392

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Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q × hf
w × Q (H - hf)
w × Q (H + hf)
w × Q × H

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Discharge and power developed
Speed, power developed and head of water
Speed and power developed
Speed and head of water

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure with rise in altitude decreases

linearly
first steeply and then gradually
first slowly and then steeply
unpredictable

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