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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wave), the portion of pipe length subjected to maximum head is

L/3
L/2
L/4
L

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Hydraulics and Fluid Mechanics in ME
The liquid used in manometers should have

High surface tension
Low density
High density
Low surface tension

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Hydraulics and Fluid Mechanics in ME
The power produced by the reaction turbine is ________ to the head of water.

Directly proportional
None of these
Inversely proportional
4th power

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Hydraulics and Fluid Mechanics in ME
The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

Inversely
Directly
None of these
Both A and B

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Hydraulics and Fluid Mechanics in ME
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)

K.ρ
ρ/K
K/ρ
None of the listed here

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Hydraulics and Fluid Mechanics in ME
The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

Five to six times
Three to four times
Equal to
Double

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