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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

zero
minimum
non-zero finite
maximum

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Hydraulics and Fluid Mechanics in ME
A double overhung Pelton wheel has

Two jets
Four runners
Four jets
Two runners

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

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Hydraulics and Fluid Mechanics in ME
Viscosity of water in comparison to mercury is

Higher/lower depending on temperature
Higher
Same
Lower

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Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece is

0.375
0.855
0.707
0.5

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Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of buoyancy
center of pressure
center of gravity
water surface

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