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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. The saving in case of a double acting reciprocating pump is

0.488
0.884
0.848
0.392

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Hydraulics and Fluid Mechanics in ME
The discharge in an open channel corresponding to critical depth is

Maximum
Zero
Minimum
None of these

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

2ρ ω2 r2
ρ ω2 r2/4
ρ ω2 r2/2
ρ ω2 r2

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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

V/T
h²
Head of water (h)
h/2

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Hydraulics and Fluid Mechanics in ME
General energy equation holds for

steady flow
laminar flow
turbulent flow
non-uniform flow

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Hydraulics and Fluid Mechanics in ME
When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

Less than
Equal to
More than
None of these

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