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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Bernoulli's equation is applied to

Orifice meter
Venturimeter
Pitot tube
All of the listed here

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

is independent of temperature
is independent of pressure for very high pressure intensities
decreases with increase in temperature
increases with increase in temperature

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Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

7.141 H5/2
1.417 H5/2
0.417 H5/2
4.171 H5/2

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Hydraulics and Fluid Mechanics in ME
In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by

Some other alterations in the impeller
Designing new impeller
Trimming the impeller size to the required size by machining
Not possible

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

h/2
h²
Head of water (h)
V/T

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Hydraulics and Fluid Mechanics in ME
Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is

(i) and (iv)
(ii) and (iii)
(ii) and (iv)
(i) and (iii)

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