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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the newtoneon fluid is

parabolic
hyperbolic
linear
inverse type

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Hydraulics and Fluid Mechanics in ME
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by

dQ/Q = (3/2) × (dH/H)
dQ/Q = (dH/H)
dQ/Q = (3/4) × (dH/H)
dQ/Q = (1/2) × (dH/H)

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the liquids with rise in temperature

Unpredictable
Remain unaffected
Decreases
Increases

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Hydraulics and Fluid Mechanics in ME
The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

(8/15) Cd. 2g. H5/2
(8/15) Cd. 2g. H
(8/15) Cd. 2g. H²
(8/15) Cd. 2g. H3/2

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Hydraulics and Fluid Mechanics in ME
The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which

Delivers unit discharge under unit speed
Delivers unit discharge under unit head
Develops unit power under unit speed
Develops unit power under unit head

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Hydraulics and Fluid Mechanics in ME
The units of kinematic viscosity are

metres² per sec
newton-sec per meter
kg sec/meter
newton-sec per meter

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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