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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine ___ with the increase in unit speed.

Decreases
Increases
None of the listed here
Remain same

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Hydraulics and Fluid Mechanics in ME
The water in a jet propelled boat is drawn through the openings facing the direction of motion of the boat. The efficiency of propulsion is given by

V/(vr + v)
2V/(vr + v)
2V/(vr - v)
V/(vr - v)

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Hydraulics and Fluid Mechanics in ME
The pressure of the liquid flowing through the divergent portion of a Venturimeter

Remains constant
Decreases
Increases
Depends upon mass of liquid

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Engler
Say bolt
Orsat
Red wood

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Hydraulics and Fluid Mechanics in ME
Centre of pressure compared to e.g. is

below it
above it
above or below depending on area of body
at same point

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Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

21000
2100
2700
10000

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